Canal d'Ille et Rance water level at Saint-Grégoire today

Is the Canal d'Ille et Rance at Saint-Grégoire within its normal range for the date?

The Canal d'Ille et Rance at Saint-Grégoire read 0.115 m at 20:40 CET on 26 October 2026.

NowHistoryThis dateBy year

Level now

within the normal range for the date

0.115 m

20:40 CET on 26 October 2026Provisional

within the normal range for the date

The normal range for 26 October is 0.04 m to 0.22 m: the 10th to 90th percentile of the daily highs from 19 October to 2 November in 12 years between 2013 and 2025.

Table: where the water stands

Level	Value
Newest reading	0.115 m, 20:40 CET on 26 October 2026
Normal range for the date	0.04 m to 0.22 m
Median for the date	0.11 m

Past day: -0.02 m
Past week: +0.054 m

The gauge reads the height of the water above a fixed zero, not the depth of the river. Its zero lies at 27.393 m above NGF-IGN69 (the French sea-level datum).

Level history

within the normal range for the date

On 25 October 2026 the Canal d'Ille et Rance at Saint-Grégoire averaged 0.148 m.

Three monthsOne yearTen yearsAll time

The last 90 days, against the normal range for each day

Level
Below the normal range
Above the normal range
Normal range for the date
Median for the date
A year earlier

Daily highs of the Canal d'Ille et Rance at Saint-Grégoire from 28 July 2026 to 25 October 2026, with the normal range for each day and the same days a year earlier.

Table: The last 90 days, against the normal range for each day

Day	Daily high (m)	Normal range	Median	A year earlier
28 July 2026	0.049 m	0.020 m to 0.149 m	0.065 m	0.067 m
29 July 2026	0.053 m	0.020 m to 0.150 m	0.065 m	0.061 m
30 July 2026	0.046 m	0.020 m to 0.158 m	0.063 m	0.056 m
31 July 2026	0.033 m	0.019 m to 0.160 m	0.061 m	0.072 m
1 August 2026	0.050 m	0.019 m to 0.155 m	0.061 m	0.101 m
2 August 2026	0.039 m	0.020 m to 0.150 m	0.061 m	0.058 m
3 August 2026	0.057 m	0.020 m to 0.155 m	0.061 m	0.076 m
4 August 2026	0.055 m	0.020 m to 0.159 m	0.060 m	0.047 m
5 August 2026	0.052 m	0.020 m to 0.158 m	0.060 m	0.053 m
6 August 2026	0.080 m	0.020 m to 0.158 m	0.060 m	0.041 m
7 August 2026	0.052 m	0.019 m to 0.160 m	0.060 m	0.038 m
8 August 2026	0.048 m	0.010 m to 0.160 m	0.061 m	0.038 m
9 August 2026	0.055 m	0.010 m to 0.158 m	0.061 m	0.032 m
10 August 2026	0.051 m	0.023 m to 0.156 m	0.061 m	0.033 m
11 August 2026	0.056 m	0.029 m to 0.151 m	0.061 m	0.036 m
12 August 2026	0.037 m	0.030 m to 0.148 m	0.062 m	0.045 m
13 August 2026	0.050 m	0.030 m to 0.142 m	0.066 m	0.034 m
14 August 2026	0.054 m	0.030 m to 0.134 m	0.067 m	0.037 m
15 August 2026	0.051 m	0.030 m to 0.126 m	0.067 m	0.039 m
16 August 2026	0.041 m	0.030 m to 0.123 m	0.067 m	0.042 m
17 August 2026	0.034 m	0.030 m to 0.123 m	0.068 m	0.050 m
18 August 2026	0.012 m	0.030 m to 0.123 m	0.068 m	0.034 m
19 August 2026	-0.004 m	0.030 m to 0.122 m	0.068 m	0.029 m
20 August 2026	0.035 m	0.031 m to 0.120 m	0.068 m	0.040 m
21 August 2026	0.057 m	0.031 m to 0.120 m	0.070 m	0.040 m
22 August 2026	0.055 m	0.033 m to 0.118 m	0.070 m	0.044 m
23 August 2026	0.060 m	0.034 m to 0.118 m	0.072 m	0.055 m
24 August 2026	0.052 m	0.035 m to 0.118 m	0.075 m	0.026 m
25 August 2026	0.048 m	0.036 m to 0.120 m	0.076 m	0.031 m
26 August 2026	0.067 m	0.036 m to 0.122 m	0.075 m	0.045 m
27 August 2026	0.118 m	0.039 m to 0.129 m	0.075 m	0.111 m
28 August 2026	0.177 m	0.036 m to 0.129 m	0.075 m	0.118 m
29 August 2026	0.143 m	0.035 m to 0.130 m	0.075 m	0.111 m
30 August 2026	0.097 m	0.035 m to 0.130 m	0.075 m	0.089 m
31 August 2026	0.086 m	0.031 m to 0.132 m	0.074 m	0.090 m
1 September 2026	0.070 m	0.030 m to 0.130 m	0.075 m	0.068 m
2 September 2026	0.060 m	0.030 m to 0.129 m	0.078 m	0.092 m
3 September 2026	0.069 m	0.030 m to 0.124 m	0.077 m	0.129 m
4 September 2026	0.060 m	0.030 m to 0.121 m	0.075 m	0.119 m
5 September 2026	0.051 m	0.020 m to 0.120 m	0.075 m	0.112 m
6 September 2026	0.065 m	0.020 m to 0.119 m	0.075 m	0.101 m
7 September 2026	0.065 m	0.020 m to 0.119 m	0.073 m	0.082 m
8 September 2026	0.054 m	0.020 m to 0.119 m	0.073 m	0.088 m
9 September 2026	0.049 m	0.025 m to 0.119 m	0.074 m	0.101 m
10 September 2026	0.067 m	0.020 m to 0.119 m	0.073 m	0.071 m
11 September 2026	0.060 m	0.020 m to 0.117 m	0.074 m	0.073 m
12 September 2026	0.067 m	0.027 m to 0.117 m	0.074 m	0.074 m
13 September 2026	0.067 m	0.030 m to 0.117 m	0.074 m	0.082 m
14 September 2026	0.059 m	0.030 m to 0.119 m	0.075 m	0.079 m
15 September 2026	0.057 m	0.030 m to 0.125 m	0.077 m	0.075 m
16 September 2026	0.080 m	0.033 m to 0.125 m	0.076 m	0.062 m
17 September 2026	0.073 m	0.035 m to 0.125 m	0.075 m	0.059 m
18 September 2026	0.047 m	0.040 m to 0.130 m	0.075 m	0.044 m
19 September 2026	0.043 m	0.040 m to 0.130 m	0.076 m	0.048 m
20 September 2026	0.048 m	0.040 m to 0.131 m	0.077 m	0.068 m
21 September 2026	0.049 m	0.040 m to 0.132 m	0.078 m	0.112 m
22 September 2026	0.049 m	0.043 m to 0.134 m	0.078 m	0.132 m
23 September 2026	0.050 m	0.040 m to 0.136 m	0.078 m	0.082 m
24 September 2026	0.055 m	0.040 m to 0.136 m	0.076 m	0.066 m
25 September 2026	0.062 m	0.040 m to 0.138 m	0.075 m	0.054 m
26 September 2026	0.066 m	0.040 m to 0.143 m	0.073 m	0.054 m
27 September 2026	0.059 m	0.040 m to 0.146 m	0.074 m	0.053 m
28 September 2026	0.163 m	0.040 m to 0.158 m	0.076 m	0.071 m
29 September 2026	0.151 m	0.040 m to 0.167 m	0.077 m	0.050 m
30 September 2026	0.116 m	0.040 m to 0.168 m	0.074 m	0.060 m
1 October 2026	0.077 m	0.040 m to 0.169 m	0.076 m	0.067 m
2 October 2026	0.077 m	0.040 m to 0.174 m	0.078 m	0.059 m
3 October 2026	0.061 m	0.030 m to 0.183 m	0.078 m	0.057 m
4 October 2026	0.058 m	0.030 m to 0.181 m	0.077 m	0.090 m
5 October 2026	0.046 m	0.026 m to 0.181 m	0.077 m	0.078 m
6 October 2026	0.060 m	0.020 m to 0.190 m	0.075 m	0.077 m
7 October 2026	0.084 m	0.020 m to 0.189 m	0.076 m	0.067 m
8 October 2026	0.060 m	0.027 m to 0.189 m	0.077 m	0.058 m
9 October 2026	0.085 m	0.030 m to 0.195 m	0.077 m	0.070 m
10 October 2026	0.082 m	0.030 m to 0.195 m	0.078 m	0.051 m
11 October 2026	0.067 m	0.037 m to 0.193 m	0.080 m	0.053 m
12 October 2026	0.078 m	0.040 m to 0.196 m	0.080 m	0.053 m
13 October 2026	0.070 m	0.040 m to 0.193 m	0.081 m	0.058 m
14 October 2026	0.070 m	0.040 m to 0.196 m	0.088 m	0.055 m
15 October 2026	0.065 m	0.040 m to 0.210 m	0.103 m	0.073 m
16 October 2026	0.068 m	0.040 m to 0.202 m	0.105 m	0.068 m
17 October 2026	0.061 m	0.040 m to 0.209 m	0.106 m	0.066 m
18 October 2026	0.061 m	0.040 m to 0.210 m	0.107 m	0.078 m
19 October 2026	0.063 m	0.040 m to 0.210 m	0.110 m	0.127 m
20 October 2026	0.075 m	0.040 m to 0.218 m	0.112 m	0.134 m
21 October 2026	0.076 m	0.040 m to 0.221 m	0.111 m	0.119 m
22 October 2026	0.097 m	0.047 m to 0.221 m	0.112 m	0.119 m
23 October 2026	0.101 m	0.040 m to 0.225 m	0.115 m	0.117 m
24 October 2026	0.129 m	0.040 m to 0.218 m	0.114 m	0.099 m
25 October 2026	0.148 m	0.040 m to 0.220 m	0.113 m	0.098 m

The last 12 months, against the normal range for each day

Level
Below the normal range
Above the normal range
Normal range for the date
Median for the date
Our record

Daily highs of the Canal d'Ille et Rance at Saint-Grégoire from 25 October 2025 to 25 October 2026, with the normal range for each day.

Table: The last 12 months, against the normal range for each day

Day	Daily high (m)	Normal range	Median
25 October 2025	0.098 m	0.040 m to 0.220 m	0.113 m
26 October 2025	0.085 m	0.040 m to 0.222 m	0.113 m
27 October 2025	0.103 m	0.040 m to 0.219 m	0.111 m
28 October 2025	0.107 m	0.040 m to 0.222 m	0.110 m
29 October 2025	0.131 m	0.040 m to 0.222 m	0.108 m
30 October 2025	0.131 m	0.040 m to 0.218 m	0.111 m
31 October 2025	0.140 m	0.040 m to 0.222 m	0.117 m
1 November 2025	0.160 m	0.040 m to 0.223 m	0.121 m
2 November 2025	0.166 m	0.040 m to 0.228 m	0.125 m
3 November 2025	0.138 m	0.040 m to 0.229 m	0.127 m
4 November 2025	0.137 m	0.040 m to 0.237 m	0.130 m
5 November 2025	0.133 m	0.040 m to 0.237 m	0.131 m
6 November 2025	0.114 m	0.040 m to 0.238 m	0.130 m
7 November 2025	0.133 m	0.040 m to 0.239 m	0.130 m
8 November 2025	0.106 m	0.042 m to 0.241 m	0.130 m
9 November 2025	0.103 m	0.047 m to 0.244 m	0.131 m
10 November 2025	0.120 m	0.050 m to 0.247 m	0.133 m
11 November 2025	0.144 m	0.053 m to 0.252 m	0.132 m
12 November 2025	0.135 m	0.059 m to 0.247 m	0.130 m
13 November 2025	0.106 m	0.060 m to 0.245 m	0.130 m
14 November 2025	0.115 m	0.061 m to 0.245 m	0.131 m
15 November 2025	0.097 m	0.064 m to 0.245 m	0.131 m
16 November 2025	0.093 m	0.065 m to 0.244 m	0.133 m
17 November 2025	0.093 m	0.063 m to 0.243 m	0.133 m
18 November 2025	0.091 m	0.065 m to 0.242 m	0.136 m
19 November 2025	0.103 m	0.065 m to 0.242 m	0.142 m
20 November 2025	0.104 m	0.065 m to 0.240 m	0.145 m
21 November 2025	0.118 m	0.070 m to 0.242 m	0.149 m
22 November 2025	0.136 m	0.070 m to 0.243 m	0.151 m
23 November 2025	0.215 m	0.070 m to 0.244 m	0.152 m
24 November 2025	0.183 m	0.065 m to 0.244 m	0.152 m
25 November 2025	0.171 m	0.065 m to 0.244 m	0.157 m
26 November 2025	0.151 m	0.070 m to 0.244 m	0.158 m
27 November 2025	0.138 m	0.070 m to 0.244 m	0.165 m
28 November 2025	0.129 m	0.041 m to 0.243 m	0.161 m
29 November 2025	0.171 m	0.039 m to 0.244 m	0.162 m
30 November 2025	0.175 m	0.034 m to 0.243 m	0.168 m
1 December 2025	0.168 m	0.030 m to 0.244 m	0.169 m
2 December 2025	0.169 m	0.030 m to 0.250 m	0.171 m
3 December 2025	0.208 m	0.030 m to 0.253 m	0.171 m
4 December 2025	0.151 m	0.030 m to 0.259 m	0.174 m
5 December 2025	0.155 m	0.030 m to 0.259 m	0.174 m
6 December 2025	0.212 m	0.030 m to 0.253 m	0.171 m
7 December 2025	0.219 m	0.030 m to 0.252 m	0.169 m
8 December 2025	0.207 m	0.030 m to 0.250 m	0.164 m
9 December 2025	0.174 m	0.030 m to 0.252 m	0.164 m
10 December 2025	0.134 m	0.030 m to 0.253 m	0.167 m
11 December 2025	0.137 m	0.031 m to 0.261 m	0.167 m
12 December 2025	0.134 m	0.047 m to 0.261 m	0.164 m
13 December 2025	0.133 m	0.080 m to 0.266 m	0.169 m
14 December 2025	0.131 m	0.080 m to 0.278 m	0.172 m
15 December 2025	0.142 m	0.080 m to 0.292 m	0.175 m
16 December 2025	0.156 m	0.080 m to 0.297 m	0.175 m
17 December 2025	0.197 m	0.080 m to 0.299 m	0.176 m
18 December 2025	0.198 m	0.085 m to 0.298 m	0.178 m
19 December 2025	0.236 m	0.090 m to 0.300 m	0.176 m
20 December 2025	0.225 m	0.090 m to 0.309 m	0.174 m
21 December 2025	0.204 m	0.090 m to 0.309 m	0.176 m
22 December 2025	0.223 m	0.090 m to 0.318 m	0.180 m
23 December 2025	0.166 m	0.090 m to 0.306 m	0.184 m
24 December 2025	0.216 m	0.090 m to 0.300 m	0.180 m
25 December 2025	0.199 m	0.090 m to 0.300 m	0.177 m
26 December 2025	0.167 m	0.090 m to 0.316 m	0.179 m
27 December 2025	0.148 m	0.090 m to 0.340 m	0.182 m
28 December 2025	0.137 m	0.090 m to 0.340 m	0.182 m
29 December 2025	0.130 m	0.090 m to 0.325 m	0.182 m
30 December 2025	0.158 m	0.090 m to 0.340 m	0.182 m
31 December 2025	0.143 m	0.090 m to 0.340 m	0.180 m
1 January 2026	0.178 m	0.090 m to 0.325 m	0.182 m
2 January 2026	0.196 m	0.090 m to 0.340 m	0.183 m
3 January 2026	0.169 m	0.090 m to 0.340 m	0.183 m
4 January 2026	0.195 m	0.080 m to 0.330 m	0.183 m
5 January 2026	0.177 m	0.080 m to 0.325 m	0.180 m
6 January 2026	0.127 m	0.080 m to 0.320 m	0.175 m
7 January 2026	0.221 m	0.080 m to 0.320 m	0.175 m
8 January 2026	0.224 m	0.080 m to 0.320 m	0.176 m
9 January 2026	0.222 m	0.080 m to 0.320 m	0.181 m
10 January 2026	0.233 m	0.080 m to 0.318 m	0.182 m
11 January 2026	0.199 m	0.080 m to 0.310 m	0.184 m
12 January 2026	0.214 m	0.081 m to 0.309 m	0.187 m
13 January 2026	0.212 m	0.090 m to 0.310 m	0.187 m
14 January 2026	0.151 m	0.110 m to 0.300 m	0.184 m
15 January 2026	0.212 m	0.110 m to 0.290 m	0.184 m
16 January 2026	0.216 m	0.119 m to 0.290 m	0.181 m
17 January 2026	0.159 m	0.119 m to 0.290 m	0.180 m
18 January 2026	0.175 m	0.120 m to 0.290 m	0.180 m
19 January 2026	0.180 m	0.120 m to 0.290 m	0.181 m
20 January 2026	0.214 m	0.120 m to 0.300 m	0.187 m
21 January 2026	0.265 m	0.120 m to 0.308 m	0.190 m
22 January 2026	0.214 m	0.110 m to 0.312 m	0.190 m
23 January 2026	0.153 m	0.110 m to 0.316 m	0.192 m
24 January 2026	0.175 m	0.110 m to 0.316 m	0.193 m
25 January 2026	0.209 m	0.110 m to 0.320 m	0.192 m
26 January 2026	0.153 m	0.109 m to 0.320 m	0.193 m
27 January 2026	0.221 m	0.098 m to 0.323 m	0.200 m
28 January 2026	0.183 m	0.090 m to 0.335 m	0.200 m
29 January 2026	0.165 m	0.089 m to 0.337 m	0.201 m
30 January 2026	0.217 m	0.090 m to 0.340 m	0.201 m
31 January 2026	0.209 m	0.090 m to 0.342 m	0.200 m
1 February 2026	0.189 m	0.108 m to 0.342 m	0.200 m
2 February 2026	0.189 m	0.120 m to 0.340 m	0.200 m
3 February 2026	0.227 m	0.120 m to 0.340 m	0.200 m
4 February 2026	0.145 m	0.120 m to 0.340 m	0.200 m
5 February 2026	0.254 m	0.122 m to 0.336 m	0.195 m
6 February 2026	0.210 m	0.126 m to 0.334 m	0.200 m
7 February 2026	0.133 m	0.130 m to 0.330 m	0.201 m
8 February 2026	0.196 m	0.130 m to 0.334 m	0.202 m
9 February 2026	0.269 m	0.134 m to 0.334 m	0.201 m
10 February 2026	0.214 m	0.134 m to 0.335 m	0.198 m
11 February 2026	0.297 m	0.140 m to 0.334 m	0.192 m
12 February 2026	0.435 m	0.140 m to 0.334 m	0.192 m
13 February 2026	0.410 m	0.140 m to 0.330 m	0.190 m
14 February 2026	0.175 m	0.134 m to 0.330 m	0.191 m
15 February 2026	0.215 m	0.134 m to 0.330 m	0.193 m
16 February 2026	0.216 m	0.134 m to 0.321 m	0.193 m
17 February 2026	0.139 m	0.130 m to 0.320 m	0.193 m
18 February 2026	0.600 m	0.130 m to 0.320 m	0.196 m
19 February 2026	1.078 m	0.126 m to 0.318 m	0.196 m
20 February 2026	1.059 m	0.126 m to 0.320 m	0.200 m
21 February 2026	0.706 m	0.126 m to 0.320 m	0.196 m
22 February 2026	0.119 m	0.126 m to 0.320 m	0.196 m
23 February 2026	0.324 m	0.126 m to 0.311 m	0.195 m
24 February 2026	0.194 m	0.129 m to 0.305 m	0.195 m
25 February 2026	0.192 m	0.130 m to 0.303 m	0.198 m
26 February 2026	0.176 m	0.132 m to 0.303 m	0.196 m
27 February 2026	0.146 m	0.136 m to 0.303 m	0.195 m
28 February 2026	0.145 m	0.135 m to 0.303 m	0.195 m
1 March 2026	0.131 m	0.136 m to 0.300 m	0.193 m
2 March 2026	0.194 m	0.136 m to 0.303 m	0.192 m
3 March 2026	0.184 m	0.136 m to 0.303 m	0.191 m
4 March 2026	0.146 m	0.136 m to 0.300 m	0.190 m
5 March 2026	0.148 m	0.136 m to 0.300 m	0.189 m
6 March 2026	0.193 m	0.130 m to 0.300 m	0.188 m
7 March 2026	0.193 m	0.122 m to 0.291 m	0.186 m
8 March 2026	0.168 m	0.120 m to 0.300 m	0.182 m
9 March 2026	0.145 m	0.120 m to 0.300 m	0.181 m
10 March 2026	0.148 m	0.118 m to 0.300 m	0.180 m
11 March 2026	0.139 m	0.107 m to 0.300 m	0.178 m
12 March 2026	0.137 m	0.012 m to 0.303 m	0.177 m
13 March 2026	0.221 m	-0.012 m to 0.300 m	0.172 m
14 March 2026	0.258 m	0.012 m to 0.290 m	0.170 m
15 March 2026	0.153 m	0.107 m to 0.291 m	0.170 m
16 March 2026	0.191 m	0.118 m to 0.292 m	0.176 m
17 March 2026	0.180 m	0.120 m to 0.290 m	0.175 m
18 March 2026	0.138 m	0.130 m to 0.290 m	0.175 m
19 March 2026	0.184 m	0.130 m to 0.290 m	0.170 m
20 March 2026	0.210 m	0.132 m to 0.290 m	0.170 m
21 March 2026	0.193 m	0.133 m to 0.290 m	0.170 m
22 March 2026	0.183 m	0.134 m to 0.300 m	0.170 m
23 March 2026	0.168 m	0.136 m to 0.292 m	0.167 m
24 March 2026	0.163 m	0.137 m to 0.291 m	0.167 m
25 March 2026	0.160 m	0.136 m to 0.291 m	0.166 m
26 March 2026	0.148 m	0.133 m to 0.291 m	0.163 m
27 March 2026	0.151 m	0.132 m to 0.291 m	0.162 m
28 March 2026	0.149 m	0.133 m to 0.303 m	0.162 m
29 March 2026	0.158 m	0.131 m to 0.310 m	0.162 m
30 March 2026	0.144 m	0.131 m to 0.303 m	0.162 m
31 March 2026	0.142 m	0.131 m to 0.294 m	0.161 m
1 April 2026	0.131 m	0.130 m to 0.296 m	0.160 m
2 April 2026	0.161 m	0.128 m to 0.290 m	0.161 m
3 April 2026	0.203 m	0.126 m to 0.290 m	0.162 m
4 April 2026	0.201 m	0.126 m to 0.290 m	0.162 m
5 April 2026	0.193 m	0.123 m to 0.286 m	0.162 m
6 April 2026	0.186 m	0.122 m to 0.272 m	0.162 m
7 April 2026	0.175 m	0.122 m to 0.270 m	0.162 m
8 April 2026	0.171 m	0.122 m to 0.261 m	0.162 m
9 April 2026	0.164 m	0.122 m to 0.261 m	0.166 m
10 April 2026	0.147 m	0.122 m to 0.268 m	0.169 m
11 April 2026	0.146 m	0.120 m to 0.260 m	0.169 m
12 April 2026	0.142 m	0.120 m to 0.250 m	0.168 m
13 April 2026	0.144 m	0.120 m to 0.244 m	0.167 m
14 April 2026	0.143 m	0.120 m to 0.242 m	0.167 m
15 April 2026	0.143 m	0.120 m to 0.240 m	0.167 m
16 April 2026	0.143 m	0.122 m to 0.240 m	0.167 m
17 April 2026	0.143 m	0.122 m to 0.240 m	0.167 m
18 April 2026	0.143 m	0.122 m to 0.230 m	0.167 m
19 April 2026	0.121 m	0.120 m to 0.230 m	0.166 m
20 April 2026	0.118 m	0.120 m to 0.230 m	0.167 m
21 April 2026	0.113 m	0.120 m to 0.236 m	0.167 m
22 April 2026	0.102 m	0.118 m to 0.236 m	0.167 m
23 April 2026	0.105 m	0.120 m to 0.237 m	0.168 m
24 April 2026	0.091 m	0.120 m to 0.250 m	0.170 m
25 April 2026	0.100 m	0.121 m to 0.250 m	0.169 m
26 April 2026	0.097 m	0.124 m to 0.270 m	0.170 m
27 April 2026	0.104 m	0.124 m to 0.270 m	0.170 m
28 April 2026	0.077 m	0.124 m to 0.270 m	0.170 m
29 April 2026	0.084 m	0.123 m to 0.270 m	0.170 m
30 April 2026	0.096 m	0.123 m to 0.270 m	0.170 m
1 May 2026	0.068 m	0.121 m to 0.270 m	0.170 m
2 May 2026	0.150 m	0.121 m to 0.270 m	0.169 m
3 May 2026	0.218 m	0.120 m to 0.270 m	0.169 m
4 May 2026	0.218 m	0.121 m to 0.270 m	0.168 m
5 May 2026	0.254 m	0.120 m to 0.271 m	0.164 m
6 May 2026	0.302 m	0.120 m to 0.270 m	0.163 m
7 May 2026	0.182 m	0.119 m to 0.270 m	0.161 m
8 May 2026	0.148 m	0.116 m to 0.244 m	0.161 m
9 May 2026	0.164 m	0.115 m to 0.233 m	0.160 m
10 May 2026	0.236 m	0.112 m to 0.225 m	0.157 m
11 May 2026	0.230 m	0.110 m to 0.220 m	0.151 m
12 May 2026	0.172 m	0.109 m to 0.218 m	0.150 m
13 May 2026	0.160 m	0.107 m to 0.210 m	0.150 m
14 May 2026	0.159 m	0.100 m to 0.210 m	0.148 m
15 May 2026	0.169 m	0.098 m to 0.210 m	0.145 m
16 May 2026	0.157 m	0.096 m to 0.213 m	0.143 m
17 May 2026	0.152 m	0.094 m to 0.210 m	0.140 m
18 May 2026	0.161 m	0.091 m to 0.210 m	0.140 m
19 May 2026	0.154 m	0.088 m to 0.198 m	0.140 m
20 May 2026	0.154 m	0.085 m to 0.192 m	0.140 m
21 May 2026	0.137 m	0.081 m to 0.190 m	0.140 m
22 May 2026	0.135 m	0.082 m to 0.188 m	0.138 m
23 May 2026	0.134 m	0.080 m to 0.187 m	0.137 m
24 May 2026	0.145 m	0.078 m to 0.188 m	0.133 m
25 May 2026	0.148 m	0.078 m to 0.188 m	0.131 m
26 May 2026	0.119 m	0.074 m to 0.190 m	0.130 m
27 May 2026	0.112 m	0.074 m to 0.190 m	0.130 m
28 May 2026	0.097 m	0.074 m to 0.195 m	0.126 m
29 May 2026	0.090 m	0.074 m to 0.200 m	0.122 m
30 May 2026	0.067 m	0.074 m to 0.193 m	0.120 m
31 May 2026	0.050 m	0.074 m to 0.187 m	0.120 m
1 June 2026	0.049 m	0.072 m to 0.185 m	0.119 m
2 June 2026	0.179 m	0.070 m to 0.183 m	0.116 m
3 June 2026	0.161 m	0.068 m to 0.180 m	0.113 m
4 June 2026	0.129 m	0.070 m to 0.180 m	0.113 m
5 June 2026	0.137 m	0.067 m to 0.189 m	0.113 m
6 June 2026	0.117 m	0.062 m to 0.189 m	0.112 m
7 June 2026	0.124 m	0.067 m to 0.204 m	0.111 m
8 June 2026	0.127 m	0.067 m to 0.220 m	0.112 m
9 June 2026	0.128 m	0.069 m to 0.226 m	0.113 m
10 June 2026	0.131 m	0.066 m to 0.226 m	0.113 m
11 June 2026	0.142 m	0.062 m to 0.235 m	0.113 m
12 June 2026	0.113 m	0.060 m to 0.225 m	0.114 m
13 June 2026	0.117 m	0.058 m to 0.225 m	0.116 m
14 June 2026	0.103 m	0.057 m to 0.225 m	0.115 m
15 June 2026	0.105 m	0.056 m to 0.225 m	0.116 m
16 June 2026	0.109 m	0.056 m to 0.233 m	0.116 m
17 June 2026	0.116 m	0.056 m to 0.233 m	0.117 m
18 June 2026	0.101 m	0.055 m to 0.235 m	0.118 m
19 June 2026	0.086 m	0.053 m to 0.233 m	0.116 m
20 June 2026	0.109 m	0.050 m to 0.223 m	0.112 m
21 June 2026	0.100 m	0.047 m to 0.213 m	0.110 m
22 June 2026	0.103 m	0.043 m to 0.213 m	0.105 m
23 June 2026	0.079 m	0.042 m to 0.210 m	0.102 m
24 June 2026	0.078 m	0.041 m to 0.208 m	0.100 m
25 June 2026	0.084 m	0.041 m to 0.193 m	0.098 m
26 June 2026	0.107 m	0.041 m to 0.184 m	0.093 m
27 June 2026	0.091 m	0.040 m to 0.184 m	0.090 m
28 June 2026	0.110 m	0.036 m to 0.180 m	0.087 m
29 June 2026	0.083 m	0.035 m to 0.179 m	0.086 m
30 June 2026	0.084 m	0.033 m to 0.172 m	0.082 m
1 July 2026	0.086 m	0.031 m to 0.164 m	0.081 m
2 July 2026	0.086 m	0.029 m to 0.164 m	0.082 m
3 July 2026	0.087 m	0.024 m to 0.164 m	0.081 m
4 July 2026	0.130 m	0.016 m to 0.157 m	0.080 m
5 July 2026	0.121 m	-0.010 m to 0.151 m	0.080 m
6 July 2026	0.103 m	-0.027 m to 0.157 m	0.080 m
7 July 2026	0.089 m	-0.027 m to 0.157 m	0.080 m
8 July 2026	0.097 m	-0.033 m to 0.158 m	0.080 m
9 July 2026	0.085 m	-0.027 m to 0.157 m	0.077 m
10 July 2026	0.073 m	-0.027 m to 0.159 m	0.075 m
11 July 2026	0.067 m	-0.027 m to 0.156 m	0.071 m
12 July 2026	0.054 m	-0.027 m to 0.156 m	0.070 m
13 July 2026	0.046 m	-0.027 m to 0.156 m	0.070 m
14 July 2026	0.052 m	-0.027 m to 0.149 m	0.070 m
15 July 2026	0.029 m	-0.033 m to 0.145 m	0.068 m
16 July 2026	0.128 m	-0.033 m to 0.145 m	0.067 m
17 July 2026	0.122 m	-0.027 m to 0.149 m	0.066 m
18 July 2026	0.106 m	-0.027 m to 0.154 m	0.065 m
19 July 2026	0.113 m	-0.015 m to 0.152 m	0.065 m
20 July 2026	0.106 m	0.005 m to 0.152 m	0.065 m
21 July 2026	0.082 m	0.019 m to 0.149 m	0.065 m
22 July 2026	0.091 m	0.017 m to 0.150 m	0.065 m
23 July 2026	0.073 m	0.020 m to 0.149 m	0.065 m
24 July 2026	0.059 m	0.020 m to 0.148 m	0.065 m
25 July 2026	0.052 m	0.020 m to 0.145 m	0.065 m
26 July 2026	0.052 m	0.020 m to 0.148 m	0.065 m
27 July 2026	0.049 m	0.020 m to 0.148 m	0.065 m
28 July 2026	0.049 m	0.020 m to 0.149 m	0.065 m
29 July 2026	0.053 m	0.020 m to 0.150 m	0.065 m
30 July 2026	0.046 m	0.020 m to 0.158 m	0.063 m
31 July 2026	0.033 m	0.019 m to 0.160 m	0.061 m
1 August 2026	0.050 m	0.019 m to 0.155 m	0.061 m
2 August 2026	0.039 m	0.020 m to 0.150 m	0.061 m
3 August 2026	0.057 m	0.020 m to 0.155 m	0.061 m
4 August 2026	0.055 m	0.020 m to 0.159 m	0.060 m
5 August 2026	0.052 m	0.020 m to 0.158 m	0.060 m
6 August 2026	0.080 m	0.020 m to 0.158 m	0.060 m
7 August 2026	0.052 m	0.019 m to 0.160 m	0.060 m
8 August 2026	0.048 m	0.010 m to 0.160 m	0.061 m
9 August 2026	0.055 m	0.010 m to 0.158 m	0.061 m
10 August 2026	0.051 m	0.023 m to 0.156 m	0.061 m
11 August 2026	0.056 m	0.029 m to 0.151 m	0.061 m
12 August 2026	0.037 m	0.030 m to 0.148 m	0.062 m
13 August 2026	0.050 m	0.030 m to 0.142 m	0.066 m
14 August 2026	0.054 m	0.030 m to 0.134 m	0.067 m
15 August 2026	0.051 m	0.030 m to 0.126 m	0.067 m
16 August 2026	0.041 m	0.030 m to 0.123 m	0.067 m
17 August 2026	0.034 m	0.030 m to 0.123 m	0.068 m
18 August 2026	0.012 m	0.030 m to 0.123 m	0.068 m
19 August 2026	-0.004 m	0.030 m to 0.122 m	0.068 m
20 August 2026	0.035 m	0.031 m to 0.120 m	0.068 m
21 August 2026	0.057 m	0.031 m to 0.120 m	0.070 m
22 August 2026	0.055 m	0.033 m to 0.118 m	0.070 m
23 August 2026	0.060 m	0.034 m to 0.118 m	0.072 m
24 August 2026	0.052 m	0.035 m to 0.118 m	0.075 m
25 August 2026	0.048 m	0.036 m to 0.120 m	0.076 m
26 August 2026	0.067 m	0.036 m to 0.122 m	0.075 m
27 August 2026	0.118 m	0.039 m to 0.129 m	0.075 m
28 August 2026	0.177 m	0.036 m to 0.129 m	0.075 m
29 August 2026	0.143 m	0.035 m to 0.130 m	0.075 m
30 August 2026	0.097 m	0.035 m to 0.130 m	0.075 m
31 August 2026	0.086 m	0.031 m to 0.132 m	0.074 m
1 September 2026	0.070 m	0.030 m to 0.130 m	0.075 m
2 September 2026	0.060 m	0.030 m to 0.129 m	0.078 m
3 September 2026	0.069 m	0.030 m to 0.124 m	0.077 m
4 September 2026	0.060 m	0.030 m to 0.121 m	0.075 m
5 September 2026	0.051 m	0.020 m to 0.120 m	0.075 m
6 September 2026	0.065 m	0.020 m to 0.119 m	0.075 m
7 September 2026	0.065 m	0.020 m to 0.119 m	0.073 m
8 September 2026	0.054 m	0.020 m to 0.119 m	0.073 m
9 September 2026	0.049 m	0.025 m to 0.119 m	0.074 m
10 September 2026	0.067 m	0.020 m to 0.119 m	0.073 m
11 September 2026	0.060 m	0.020 m to 0.117 m	0.074 m
12 September 2026	0.067 m	0.027 m to 0.117 m	0.074 m
13 September 2026	0.067 m	0.030 m to 0.117 m	0.074 m
14 September 2026	0.059 m	0.030 m to 0.119 m	0.075 m
15 September 2026	0.057 m	0.030 m to 0.125 m	0.077 m
16 September 2026	0.080 m	0.033 m to 0.125 m	0.076 m
17 September 2026	0.073 m	0.035 m to 0.125 m	0.075 m
18 September 2026	0.047 m	0.040 m to 0.130 m	0.075 m
19 September 2026	0.043 m	0.040 m to 0.130 m	0.076 m
20 September 2026	0.048 m	0.040 m to 0.131 m	0.077 m
21 September 2026	0.049 m	0.040 m to 0.132 m	0.078 m
22 September 2026	0.049 m	0.043 m to 0.134 m	0.078 m
23 September 2026	0.050 m	0.040 m to 0.136 m	0.078 m
24 September 2026	0.055 m	0.040 m to 0.136 m	0.076 m
25 September 2026	0.062 m	0.040 m to 0.138 m	0.075 m
26 September 2026	0.066 m	0.040 m to 0.143 m	0.073 m
27 September 2026	0.059 m	0.040 m to 0.146 m	0.074 m
28 September 2026	0.163 m	0.040 m to 0.158 m	0.076 m
29 September 2026	0.151 m	0.040 m to 0.167 m	0.077 m
30 September 2026	0.116 m	0.040 m to 0.168 m	0.074 m
1 October 2026	0.077 m	0.040 m to 0.169 m	0.076 m
2 October 2026	0.077 m	0.040 m to 0.174 m	0.078 m
3 October 2026	0.061 m	0.030 m to 0.183 m	0.078 m
4 October 2026	0.058 m	0.030 m to 0.181 m	0.077 m
5 October 2026	0.046 m	0.026 m to 0.181 m	0.077 m
6 October 2026	0.060 m	0.020 m to 0.190 m	0.075 m
7 October 2026	0.084 m	0.020 m to 0.189 m	0.076 m
8 October 2026	0.060 m	0.027 m to 0.189 m	0.077 m
9 October 2026	0.085 m	0.030 m to 0.195 m	0.077 m
10 October 2026	0.082 m	0.030 m to 0.195 m	0.078 m
11 October 2026	0.067 m	0.037 m to 0.193 m	0.080 m
12 October 2026	0.078 m	0.040 m to 0.196 m	0.080 m
13 October 2026	0.070 m	0.040 m to 0.193 m	0.081 m
14 October 2026	0.070 m	0.040 m to 0.196 m	0.088 m
15 October 2026	0.065 m	0.040 m to 0.210 m	0.103 m
16 October 2026	0.068 m	0.040 m to 0.202 m	0.105 m
17 October 2026	0.061 m	0.040 m to 0.209 m	0.106 m
18 October 2026	0.061 m	0.040 m to 0.210 m	0.107 m
19 October 2026	0.063 m	0.040 m to 0.210 m	0.110 m
20 October 2026	0.075 m	0.040 m to 0.218 m	0.112 m
21 October 2026	0.076 m	0.040 m to 0.221 m	0.111 m
22 October 2026	0.097 m	0.047 m to 0.221 m	0.112 m
23 October 2026	0.101 m	0.040 m to 0.225 m	0.115 m
24 October 2026	0.129 m	0.040 m to 0.218 m	0.114 m
25 October 2026	0.148 m	0.040 m to 0.220 m	0.113 m

The last 10 years, weekly averages

Level

Weekly averages of the Canal d'Ille et Rance at Saint-Grégoire from the week of 24 October 2016 to 25 October 2026.

Table: The last 10 years, weekly averages

Week starting	Weekly average of daily highs (m)
24 October 2016	0.041 m
31 October 2016	0.023 m
7 November 2016	0.107 m
14 November 2016	0.079 m
21 November 2016	0.163 m
28 November 2016	0.046 m
5 December 2016	0.080 m
12 December 2016	0.089 m
19 December 2016	0.099 m
26 December 2016	0.096 m
2 January 2017	0.086 m
9 January 2017	0.134 m
16 January 2017	0.177 m
23 January 2017	0.084 m
30 January 2017	0.226 m
6 February 2017	0.294 m
13 February 2017	0.183 m
20 February 2017	0.120 m
27 February 2017	0.184 m
6 March 2017	0.143 m
13 March 2017	0.167 m
20 March 2017	0.147 m
27 March 2017	0.114 m
3 April 2017	0.089 m
10 April 2017	0.090 m
17 April 2017	0.095 m
24 April 2017	0.095 m
1 May 2017	0.285 m
8 May 2017	0.160 m
15 May 2017	0.068 m
22 May 2017	0.087 m
29 May 2017	0.088 m
5 June 2017	0.086 m
12 June 2017	0.054 m
19 June 2017	0.050 m
26 June 2017	0.057 m
3 July 2017	0.053 m
10 July 2017	0.067 m
17 July 2017	0.069 m
24 July 2017	0.072 m
31 July 2017	0.049 m
7 August 2017	0.082 m
14 August 2017	0.048 m
21 August 2017	0.042 m
28 August 2017	0.060 m
4 September 2017	0.076 m
11 September 2017	0.094 m
18 September 2017	0.067 m
25 September 2017	0.088 m
2 October 2017	0.073 m
9 October 2017	0.067 m
16 October 2017	0.090 m
23 October 2017	0.074 m
30 October 2017	0.090 m
6 November 2017	0.114 m
13 November 2017	0.080 m
20 November 2017	0.113 m
27 November 2017	0.249 m
4 December 2017	0.247 m
11 December 2017	0.289 m
18 December 2017	0.240 m
25 December 2017	0.301 m
1 January 2018	0.421 m
8 January 2018	0.313 m
15 January 2018	0.253 m
22 January 2018	0.291 m
29 January 2018	0.252 m
5 February 2018	0.206 m
12 February 2018	0.240 m
19 February 2018	0.326 m
26 February 2018	0.281 m
5 March 2018	0.303 m
12 March 2018	0.317 m
19 March 2018	0.300 m
26 March 2018	0.258 m
2 April 2018	0.270 m
9 April 2018	0.203 m
16 April 2018	0.239 m
23 April 2018	0.197 m
30 April 2018	0.242 m
7 May 2018	0.153 m
14 May 2018	0.104 m
21 May 2018	0.112 m
28 May 2018	0.174 m
4 June 2018	0.298 m
11 June 2018	0.335 m
18 June 2018	0.200 m
25 June 2018	0.133 m
2 July 2018	0.100 m
9 July 2018	0.065 m
16 July 2018	0.052 m
23 July 2018	0.024 m
30 July 2018	0.072 m
6 August 2018	0.062 m
13 August 2018	0.096 m
20 August 2018	0.062 m
27 August 2018	0.083 m
3 September 2018	0.030 m
10 September 2018	-0.031 m
17 September 2018	0.087 m
24 September 2018	0.090 m
1 October 2018	0.104 m
8 October 2018	0.129 m
15 October 2018	0.070 m
22 October 2018	0.081 m
29 October 2018	0.067 m
5 November 2018	0.099 m
12 November 2018	0.097 m
19 November 2018	0.109 m
26 November 2018	0.224 m
3 December 2018	0.261 m
10 December 2018	0.184 m
17 December 2018	0.273 m
24 December 2018	0.176 m
31 December 2018	0.136 m
7 January 2019	0.142 m
14 January 2019	0.156 m
21 January 2019	0.244 m
28 January 2019	0.328 m
4 February 2019	0.300 m
11 February 2019	0.268 m
18 February 2019	0.215 m
25 February 2019	0.182 m
4 March 2019	0.228 m
11 March 2019	0.215 m
18 March 2019	0.201 m
25 March 2019	0.140 m
1 April 2019	0.165 m
8 April 2019	0.167 m
15 April 2019	0.150 m
22 April 2019	0.221 m
29 April 2019	0.164 m
6 May 2019	0.230 m
13 May 2019	0.166 m
20 May 2019	0.133 m
27 May 2019	0.114 m
3 June 2019	0.135 m
10 June 2019	0.175 m
17 June 2019	0.147 m
24 June 2019	0.111 m
1 July 2019	0.077 m
8 July 2019	0.074 m
15 July 2019	0.112 m
22 July 2019	0.065 m
29 July 2019	0.056 m
5 August 2019	0.063 m
12 August 2019	0.071 m
19 August 2019	0.071 m
26 August 2019	0.060 m
2 September 2019	0.055 m
9 September 2019	0.058 m
16 September 2019	0.063 m
23 September 2019	0.104 m
30 September 2019	0.079 m
7 October 2019	0.115 m
14 October 2019	0.168 m
21 October 2019	0.158 m
28 October 2019	0.224 m
4 November 2019	0.280 m
11 November 2019	0.348 m
18 November 2019	0.249 m
25 November 2019	0.269 m
2 December 2019	0.219 m
9 December 2019	0.228 m
16 December 2019	0.413 m
23 December 2019	0.268 m
30 December 2019	0.228 m
6 January 2020	0.226 m
13 January 2020	0.209 m
20 January 2020	0.160 m
27 January 2020	0.236 m
3 February 2020	0.216 m
10 February 2020	0.253 m
17 February 2020	0.200 m
24 February 2020	0.239 m
2 March 2020	0.225 m
9 March 2020	0.217 m
16 March 2020	0.165 m
23 March 2020	0.162 m
30 March 2020	0.154 m
6 April 2020	0.147 m
13 April 2020	0.155 m
20 April 2020	0.158 m
27 April 2020	0.175 m
4 May 2020	0.186 m
11 May 2020	0.128 m
18 May 2020	0.088 m
25 May 2020	0.060 m
1 June 2020	0.064 m
8 June 2020	0.120 m
15 June 2020	0.140 m
22 June 2020	0.066 m
29 June 2020	0.072 m
6 July 2020	0.084 m
13 July 2020	0.073 m
20 July 2020	0.062 m
27 July 2020	0.076 m
3 August 2020	0.070 m
10 August 2020	0.114 m
17 August 2020	0.096 m
24 August 2020	0.083 m
31 August 2020	0.092 m
7 September 2020	0.076 m
14 September 2020	0.106 m
21 September 2020	0.137 m
28 September 2020	0.202 m
5 October 2020	0.141 m
12 October 2020	0.129 m
19 October 2020	0.188 m
26 October 2020	0.187 m
2 November 2020	0.153 m
9 November 2020	0.158 m
16 November 2020	0.172 m
23 November 2020	0.178 m
30 November 2020	0.188 m
7 December 2020	0.232 m
14 December 2020	0.219 m
21 December 2020	0.301 m
28 December 2020	0.223 m
4 January 2021	0.203 m
11 January 2021	0.166 m
18 January 2021	0.188 m
25 January 2021	0.211 m
1 February 2021	0.273 m
8 February 2021	0.167 m
15 February 2021	0.188 m
22 February 2021	0.205 m
1 March 2021	0.185 m
8 March 2021	0.190 m
15 March 2021	0.160 m
22 March 2021	0.161 m
29 March 2021	0.149 m
5 April 2021	0.181 m
12 April 2021	0.185 m
19 April 2021	0.153 m
26 April 2021	0.126 m
3 May 2021	0.121 m
10 May 2021	0.151 m
17 May 2021	0.157 m
24 May 2021	0.188 m
31 May 2021	0.134 m
7 June 2021	0.089 m
14 June 2021	0.133 m
21 June 2021	0.176 m
28 June 2021	0.194 m
5 July 2021	0.192 m
12 July 2021	0.185 m
19 July 2021	0.147 m
26 July 2021	0.154 m
2 August 2021	0.162 m
9 August 2021	0.143 m
16 August 2021	0.102 m
23 August 2021	0.087 m
30 August 2021	0.078 m
6 September 2021	0.094 m
13 September 2021	0.076 m
20 September 2021	0.069 m
27 September 2021	0.132 m
4 October 2021	0.184 m
11 October 2021	0.128 m
18 October 2021	0.144 m
25 October 2021	0.141 m
1 November 2021	0.192 m
8 November 2021	0.195 m
15 November 2021	0.148 m
22 November 2021	0.158 m
29 November 2021	0.203 m
6 December 2021	0.199 m
13 December 2021	0.148 m
20 December 2021	0.212 m
27 December 2021	0.195 m
3 January 2022	0.237 m
10 January 2022	0.196 m
17 January 2022	0.199 m
24 January 2022	0.188 m
31 January 2022	0.185 m
7 February 2022	0.166 m
14 February 2022	0.232 m
21 February 2022	0.173 m
28 February 2022	0.186 m
7 March 2022	0.187 m
14 March 2022	0.166 m
21 March 2022	0.153 m
28 March 2022	0.148 m
4 April 2022	0.170 m
11 April 2022	0.172 m
18 April 2022	0.168 m
25 April 2022	0.157 m
2 May 2022	0.132 m
9 May 2022	0.124 m
16 May 2022	0.120 m
23 May 2022	0.151 m
30 May 2022	0.108 m
6 June 2022	0.118 m
13 June 2022	0.103 m
20 June 2022	0.096 m
27 June 2022	-0.095 m
4 July 2022	-0.144 m
11 July 2022	-0.193 m
18 July 2022	-0.153 m
25 July 2022	-0.078 m
1 August 2022	0.053 m
8 August 2022	0.060 m
15 August 2022	0.068 m
22 August 2022	0.061 m
29 August 2022	0.132 m
5 September 2022	0.087 m
12 September 2022	0.114 m
19 September 2022	0.066 m
26 September 2022	0.096 m
3 October 2022	0.046 m
10 October 2022	0.110 m
17 October 2022	0.119 m
24 October 2022	0.108 m
31 October 2022	0.120 m
7 November 2022	0.131 m
14 November 2022	0.164 m
21 November 2022	0.171 m
28 November 2022	0.167 m
5 December 2022	0.112 m
12 December 2022	0.124 m
19 December 2022	0.229 m
26 December 2022	0.223 m
2 January 2023	0.214 m
9 January 2023	0.217 m
16 January 2023	0.174 m
23 January 2023	0.209 m
30 January 2023	0.215 m
6 February 2023	0.176 m
13 February 2023	0.154 m
20 February 2023	0.152 m
27 February 2023	0.173 m
6 March 2023	0.139 m
13 March 2023	0.180 m
20 March 2023	0.213 m
27 March 2023	0.203 m
3 April 2023	0.181 m
10 April 2023	0.208 m
17 April 2023	0.200 m
24 April 2023	0.186 m
1 May 2023	0.206 m
8 May 2023	0.189 m
15 May 2023	0.160 m
22 May 2023	0.158 m
29 May 2023	0.124 m
5 June 2023	0.123 m
12 June 2023	0.113 m
19 June 2023	0.102 m
26 June 2023	0.078 m
3 July 2023	0.101 m
10 July 2023	0.086 m
17 July 2023	0.078 m
24 July 2023	0.126 m
31 July 2023	0.164 m
7 August 2023	0.100 m
14 August 2023	0.094 m
21 August 2023	0.074 m
28 August 2023	0.079 m
4 September 2023	0.029 m
11 September 2023	0.031 m
18 September 2023	0.063 m
25 September 2023	0.076 m
2 October 2023	0.063 m
9 October 2023	0.067 m
16 October 2023	0.131 m
23 October 2023	0.180 m
30 October 2023	0.202 m
6 November 2023	0.183 m
13 November 2023	0.195 m
20 November 2023	0.187 m
27 November 2023	0.157 m
4 December 2023	0.203 m
11 December 2023	0.167 m
18 December 2023	0.184 m
25 December 2023	0.169 m
1 January 2024	0.203 m
8 January 2024	0.152 m
15 January 2024	0.211 m
22 January 2024	0.166 m
29 January 2024	0.128 m
5 February 2024	0.190 m
12 February 2024	0.162 m
19 February 2024	0.221 m
26 February 2024	0.213 m
4 March 2024	0.169 m
11 March 2024	0.152 m
18 March 2024	0.157 m
25 March 2024	0.168 m
1 April 2024	0.164 m
8 April 2024	0.138 m
15 April 2024	0.133 m
22 April 2024	0.159 m
29 April 2024	0.132 m
6 May 2024	0.144 m
13 May 2024	0.169 m
20 May 2024	0.163 m
27 May 2024	0.175 m
3 June 2024	0.131 m
10 June 2024	0.117 m
17 June 2024	0.186 m
24 June 2024	0.119 m
1 July 2024	0.091 m
8 July 2024	0.129 m
15 July 2024	0.087 m
22 July 2024	0.082 m
29 July 2024	0.057 m
5 August 2024	0.036 m
12 August 2024	0.007 m
19 August 2024	0.092 m
26 August 2024	0.086 m
2 September 2024	0.167 m
9 September 2024	0.136 m
16 September 2024	0.102 m
23 September 2024	0.164 m
30 September 2024	0.151 m
7 October 2024	0.193 m
14 October 2024	0.231 m
21 October 2024	0.233 m
28 October 2024	0.074 m
4 November 2024	0.039 m
11 November 2024	0.033 m
18 November 2024	0.097 m
25 November 2024	0.073 m
2 December 2024	0.056 m
9 December 2024	0.140 m
16 December 2024	0.171 m
23 December 2024	0.153 m
30 December 2024	0.181 m
6 January 2025	0.249 m
13 January 2025	0.170 m
20 January 2025	0.500 m
27 January 2025	0.551 m
3 February 2025	0.171 m
10 February 2025	0.177 m
17 February 2025	0.159 m
24 February 2025	0.211 m
3 March 2025	0.165 m
10 March 2025	0.131 m
17 March 2025	0.153 m
24 March 2025	0.154 m
31 March 2025	0.140 m
7 April 2025	0.127 m
14 April 2025	0.154 m
21 April 2025	0.165 m
28 April 2025	0.139 m
5 May 2025	0.122 m
12 May 2025	0.115 m
19 May 2025	0.095 m
26 May 2025	0.047 m
2 June 2025	0.078 m
9 June 2025	0.083 m
16 June 2025	0.050 m
23 June 2025	0.044 m
30 June 2025	0.037 m
7 July 2025	0.002 m
14 July 2025	0.085 m
21 July 2025	0.098 m
28 July 2025	0.070 m
4 August 2025	0.040 m
11 August 2025	0.040 m
18 August 2025	0.038 m
25 August 2025	0.085 m
1 September 2025	0.100 m
8 September 2025	0.081 m
15 September 2025	0.067 m
22 September 2025	0.073 m
29 September 2025	0.066 m
6 October 2025	0.061 m
13 October 2025	0.075 m
20 October 2025	0.110 m
27 October 2025	0.134 m
3 November 2025	0.123 m
10 November 2025	0.116 m
17 November 2025	0.123 m
24 November 2025	0.160 m
1 December 2025	0.183 m
8 December 2025	0.150 m
15 December 2025	0.194 m
22 December 2025	0.179 m
29 December 2025	0.167 m
5 January 2026	0.200 m
12 January 2026	0.191 m
19 January 2026	0.201 m
26 January 2026	0.191 m
2 February 2026	0.193 m
9 February 2026	0.288 m
16 February 2026	0.560 m
23 February 2026	0.187 m
2 March 2026	0.175 m
9 March 2026	0.172 m
16 March 2026	0.183 m
23 March 2026	0.157 m
30 March 2026	0.168 m
6 April 2026	0.162 m
13 April 2026	0.140 m
20 April 2026	0.104 m
27 April 2026	0.114 m
4 May 2026	0.215 m
11 May 2026	0.171 m
18 May 2026	0.146 m
25 May 2026	0.098 m
1 June 2026	0.128 m
8 June 2026	0.123 m
15 June 2026	0.104 m
22 June 2026	0.093 m
29 June 2026	0.097 m
6 July 2026	0.081 m
13 July 2026	0.085 m
20 July 2026	0.074 m
27 July 2026	0.046 m
3 August 2026	0.057 m
10 August 2026	0.049 m
17 August 2026	0.036 m
24 August 2026	0.100 m
31 August 2026	0.066 m
7 September 2026	0.061 m
14 September 2026	0.058 m
21 September 2026	0.056 m
28 September 2026	0.100 m
5 October 2026	0.069 m
12 October 2026	0.068 m
19 October 2026	0.098 m

The whole record since 2000, weekly averages

Level
Our record

Weekly averages of the Canal d'Ille et Rance at Saint-Grégoire from 13 November 2000 to 25 October 2026.

Table: The whole record since 2000, weekly averages

Week starting	Weekly average of daily highs (m)
13 November 2000	no value
20 November 2000	no value
27 November 2000	no value
4 December 2000	no value
11 December 2000	no value
18 December 2000	no value
25 December 2000	no value
1 January 2001	no value
8 January 2001	no value
15 January 2001	no value
22 January 2001	no value
29 January 2001	no value
5 February 2001	no value
12 February 2001	no value
19 February 2001	no value
26 February 2001	no value
5 March 2001	no value
12 March 2001	no value
19 March 2001	no value
26 March 2001	no value
2 April 2001	no value
9 April 2001	no value
16 April 2001	no value
23 April 2001	no value
30 April 2001	no value
7 May 2001	no value
14 May 2001	no value
21 May 2001	no value
28 May 2001	no value
4 June 2001	no value
11 June 2001	no value
18 June 2001	no value
25 June 2001	no value
2 July 2001	no value
9 July 2001	no value
16 July 2001	no value
23 July 2001	no value
30 July 2001	no value
6 August 2001	no value
13 August 2001	no value
20 August 2001	no value
27 August 2001	no value
3 September 2001	no value
10 September 2001	no value
17 September 2001	no value
24 September 2001	no value
1 October 2001	no value
8 October 2001	no value
15 October 2001	no value
22 October 2001	no value
29 October 2001	no value
5 November 2001	no value
12 November 2001	no value
19 November 2001	no value
26 November 2001	no value
3 December 2001	no value
10 December 2001	no value
17 December 2001	no value
24 December 2001	no value
31 December 2001	no value
7 January 2002	no value
14 January 2002	no value
21 January 2002	no value
28 January 2002	no value
4 February 2002	no value
11 February 2002	no value
18 February 2002	no value
25 February 2002	no value
4 March 2002	no value
11 March 2002	no value
18 March 2002	no value
25 March 2002	no value
1 April 2002	no value
8 April 2002	no value
15 April 2002	no value
22 April 2002	no value
29 April 2002	no value
6 May 2002	no value
13 May 2002	no value
20 May 2002	no value
27 May 2002	no value
3 June 2002	no value
10 June 2002	no value
17 June 2002	no value
24 June 2002	no value
1 July 2002	no value
8 July 2002	no value
15 July 2002	no value
22 July 2002	no value
29 July 2002	no value
5 August 2002	no value
12 August 2002	no value
19 August 2002	no value
26 August 2002	no value
2 September 2002	no value
9 September 2002	no value
16 September 2002	no value
23 September 2002	no value
30 September 2002	no value
7 October 2002	no value
14 October 2002	no value
21 October 2002	no value
28 October 2002	no value
4 November 2002	no value
11 November 2002	no value
18 November 2002	no value
25 November 2002	no value
2 December 2002	no value
9 December 2002	no value
16 December 2002	no value
23 December 2002	no value
30 December 2002	no value
6 January 2003	no value
13 January 2003	no value
20 January 2003	no value
27 January 2003	no value
3 February 2003	no value
10 February 2003	no value
17 February 2003	no value
24 February 2003	no value
3 March 2003	no value
10 March 2003	no value
17 March 2003	no value
24 March 2003	no value
31 March 2003	no value
7 April 2003	no value
14 April 2003	no value
21 April 2003	no value
28 April 2003	no value
5 May 2003	no value
12 May 2003	no value
19 May 2003	no value
26 May 2003	no value
2 June 2003	no value
9 June 2003	no value
16 June 2003	no value
23 June 2003	no value
30 June 2003	no value
7 July 2003	no value
14 July 2003	no value
21 July 2003	no value
28 July 2003	no value
4 August 2003	no value
11 August 2003	no value
18 August 2003	no value
25 August 2003	no value
1 September 2003	no value
8 September 2003	no value
15 September 2003	no value
22 September 2003	no value
29 September 2003	no value
6 October 2003	no value
13 October 2003	no value
20 October 2003	no value
27 October 2003	no value
3 November 2003	no value
10 November 2003	no value
17 November 2003	no value
24 November 2003	no value
1 December 2003	no value
8 December 2003	no value
15 December 2003	no value
22 December 2003	no value
29 December 2003	no value
5 January 2004	no value
12 January 2004	no value
19 January 2004	no value
26 January 2004	no value
2 February 2004	no value
9 February 2004	no value
16 February 2004	no value
23 February 2004	no value
1 March 2004	no value
8 March 2004	no value
15 March 2004	no value
22 March 2004	no value
29 March 2004	no value
5 April 2004	no value
12 April 2004	no value
19 April 2004	no value
26 April 2004	no value
3 May 2004	no value
10 May 2004	no value
17 May 2004	no value
24 May 2004	no value
31 May 2004	no value
7 June 2004	no value
14 June 2004	no value
21 June 2004	no value
28 June 2004	no value
5 July 2004	no value
12 July 2004	no value
19 July 2004	no value
26 July 2004	no value
2 August 2004	no value
9 August 2004	no value
16 August 2004	no value
23 August 2004	no value
30 August 2004	no value
6 September 2004	no value
13 September 2004	no value
20 September 2004	no value
27 September 2004	no value
4 October 2004	no value
11 October 2004	no value
18 October 2004	no value
25 October 2004	no value
1 November 2004	no value
8 November 2004	no value
15 November 2004	no value
22 November 2004	no value
29 November 2004	no value
6 December 2004	no value
13 December 2004	no value
20 December 2004	no value
27 December 2004	no value
3 January 2005	no value
10 January 2005	no value
17 January 2005	no value
24 January 2005	no value
31 January 2005	no value
7 February 2005	no value
14 February 2005	no value
21 February 2005	no value
28 February 2005	no value
7 March 2005	no value
14 March 2005	no value
21 March 2005	no value
28 March 2005	no value
4 April 2005	no value
11 April 2005	no value
18 April 2005	no value
25 April 2005	no value
2 May 2005	no value
9 May 2005	no value
16 May 2005	no value
23 May 2005	no value
30 May 2005	no value
6 June 2005	no value
13 June 2005	no value
20 June 2005	no value
27 June 2005	no value
4 July 2005	no value
11 July 2005	no value
18 July 2005	no value
25 July 2005	no value
1 August 2005	no value
8 August 2005	no value
15 August 2005	no value
22 August 2005	no value
29 August 2005	no value
5 September 2005	no value
12 September 2005	no value
19 September 2005	no value
26 September 2005	no value
3 October 2005	no value
10 October 2005	no value
17 October 2005	no value
24 October 2005	no value
31 October 2005	no value
7 November 2005	no value
14 November 2005	no value
21 November 2005	no value
28 November 2005	no value
5 December 2005	no value
12 December 2005	no value
19 December 2005	no value
26 December 2005	no value
2 January 2006	no value
9 January 2006	no value
16 January 2006	no value
23 January 2006	no value
30 January 2006	no value
6 February 2006	no value
13 February 2006	no value
20 February 2006	no value
27 February 2006	no value
6 March 2006	no value
13 March 2006	no value
20 March 2006	no value
27 March 2006	no value
3 April 2006	no value
10 April 2006	no value
17 April 2006	no value
24 April 2006	no value
1 May 2006	no value
8 May 2006	no value
15 May 2006	no value
22 May 2006	no value
29 May 2006	no value
5 June 2006	no value
12 June 2006	no value
19 June 2006	no value
26 June 2006	no value
3 July 2006	no value
10 July 2006	no value
17 July 2006	no value
24 July 2006	no value
31 July 2006	no value
7 August 2006	no value
14 August 2006	no value
21 August 2006	no value
28 August 2006	no value
4 September 2006	no value
11 September 2006	no value
18 September 2006	no value
25 September 2006	no value
2 October 2006	no value
9 October 2006	no value
16 October 2006	no value
23 October 2006	no value
30 October 2006	no value
6 November 2006	no value
13 November 2006	no value
20 November 2006	no value
27 November 2006	no value
4 December 2006	no value
11 December 2006	no value
18 December 2006	no value
25 December 2006	no value
1 January 2007	no value
8 January 2007	no value
15 January 2007	no value
22 January 2007	no value
29 January 2007	no value
5 February 2007	no value
12 February 2007	no value
19 February 2007	no value
26 February 2007	no value
5 March 2007	no value
12 March 2007	no value
19 March 2007	no value
26 March 2007	no value
2 April 2007	no value
9 April 2007	no value
16 April 2007	no value
23 April 2007	no value
30 April 2007	no value
7 May 2007	no value
14 May 2007	no value
21 May 2007	no value
28 May 2007	no value
4 June 2007	no value
11 June 2007	no value
18 June 2007	no value
25 June 2007	no value
2 July 2007	no value
9 July 2007	no value
16 July 2007	no value
23 July 2007	no value
30 July 2007	no value
6 August 2007	no value
13 August 2007	no value
20 August 2007	no value
27 August 2007	no value
3 September 2007	no value
10 September 2007	no value
17 September 2007	no value
24 September 2007	no value
1 October 2007	no value
8 October 2007	no value
15 October 2007	no value
22 October 2007	no value
29 October 2007	no value
5 November 2007	no value
12 November 2007	no value
19 November 2007	no value
26 November 2007	no value
3 December 2007	no value
10 December 2007	no value
17 December 2007	no value
24 December 2007	no value
31 December 2007	no value
7 January 2008	no value
14 January 2008	no value
21 January 2008	no value
28 January 2008	no value
4 February 2008	no value
11 February 2008	no value
18 February 2008	no value
25 February 2008	no value
3 March 2008	no value
10 March 2008	no value
17 March 2008	no value
24 March 2008	no value
31 March 2008	no value
7 April 2008	no value
14 April 2008	no value
21 April 2008	no value
28 April 2008	no value
5 May 2008	no value
12 May 2008	no value
19 May 2008	no value
26 May 2008	no value
2 June 2008	no value
9 June 2008	no value
16 June 2008	no value
23 June 2008	no value
30 June 2008	no value
7 July 2008	no value
14 July 2008	no value
21 July 2008	no value
28 July 2008	no value
4 August 2008	no value
11 August 2008	no value
18 August 2008	no value
25 August 2008	no value
1 September 2008	no value
8 September 2008	no value
15 September 2008	no value
22 September 2008	no value
29 September 2008	no value
6 October 2008	no value
13 October 2008	no value
20 October 2008	no value
27 October 2008	no value
3 November 2008	no value
10 November 2008	no value
17 November 2008	no value
24 November 2008	no value
1 December 2008	no value
8 December 2008	no value
15 December 2008	no value
22 December 2008	no value
29 December 2008	no value
5 January 2009	no value
12 January 2009	no value
19 January 2009	no value
26 January 2009	no value
2 February 2009	no value
9 February 2009	no value
16 February 2009	no value
23 February 2009	no value
2 March 2009	no value
9 March 2009	no value
16 March 2009	no value
23 March 2009	no value
30 March 2009	no value
6 April 2009	no value
13 April 2009	no value
20 April 2009	no value
27 April 2009	no value
4 May 2009	no value
11 May 2009	no value
18 May 2009	no value
25 May 2009	no value
1 June 2009	no value
8 June 2009	no value
15 June 2009	no value
22 June 2009	no value
29 June 2009	no value
6 July 2009	no value
13 July 2009	no value
20 July 2009	no value
27 July 2009	no value
3 August 2009	no value
10 August 2009	no value
17 August 2009	no value
24 August 2009	no value
31 August 2009	no value
7 September 2009	no value
14 September 2009	no value
21 September 2009	no value
28 September 2009	no value
5 October 2009	no value
12 October 2009	no value
19 October 2009	no value
26 October 2009	no value
2 November 2009	no value
9 November 2009	no value
16 November 2009	no value
23 November 2009	no value
30 November 2009	no value
7 December 2009	no value
14 December 2009	no value
21 December 2009	no value
28 December 2009	no value
4 January 2010	no value
11 January 2010	no value
18 January 2010	no value
25 January 2010	no value
1 February 2010	no value
8 February 2010	no value
15 February 2010	no value
22 February 2010	no value
1 March 2010	no value
8 March 2010	no value
15 March 2010	no value
22 March 2010	no value
29 March 2010	no value
5 April 2010	no value
12 April 2010	no value
19 April 2010	no value
26 April 2010	no value
3 May 2010	no value
10 May 2010	no value
17 May 2010	no value
24 May 2010	no value
31 May 2010	no value
7 June 2010	no value
14 June 2010	no value
21 June 2010	no value
28 June 2010	no value
5 July 2010	no value
12 July 2010	no value
19 July 2010	no value
26 July 2010	no value
2 August 2010	no value
9 August 2010	no value
16 August 2010	no value
23 August 2010	no value
30 August 2010	no value
6 September 2010	no value
13 September 2010	no value
20 September 2010	no value
27 September 2010	no value
4 October 2010	no value
11 October 2010	no value
18 October 2010	no value
25 October 2010	no value
1 November 2010	no value
8 November 2010	no value
15 November 2010	no value
22 November 2010	no value
29 November 2010	no value
6 December 2010	no value
13 December 2010	no value
20 December 2010	no value
27 December 2010	no value
3 January 2011	no value
10 January 2011	no value
17 January 2011	no value
24 January 2011	no value
31 January 2011	no value
7 February 2011	no value
14 February 2011	no value
21 February 2011	no value
28 February 2011	no value
7 March 2011	no value
14 March 2011	no value
21 March 2011	no value
28 March 2011	no value
4 April 2011	no value
11 April 2011	no value
18 April 2011	no value
25 April 2011	no value
2 May 2011	no value
9 May 2011	no value
16 May 2011	no value
23 May 2011	no value
30 May 2011	no value
6 June 2011	no value
13 June 2011	no value
20 June 2011	no value
27 June 2011	no value
4 July 2011	no value
11 July 2011	no value
18 July 2011	no value
25 July 2011	no value
1 August 2011	no value
8 August 2011	no value
15 August 2011	no value
22 August 2011	no value
29 August 2011	no value
5 September 2011	no value
12 September 2011	no value
19 September 2011	no value
26 September 2011	no value
3 October 2011	no value
10 October 2011	no value
17 October 2011	no value
24 October 2011	no value
31 October 2011	no value
7 November 2011	no value
14 November 2011	no value
21 November 2011	no value
28 November 2011	no value
5 December 2011	no value
12 December 2011	no value
19 December 2011	no value
26 December 2011	no value
2 January 2012	no value
9 January 2012	no value
16 January 2012	no value
23 January 2012	no value
30 January 2012	no value
6 February 2012	no value
13 February 2012	no value
20 February 2012	no value
27 February 2012	no value
5 March 2012	no value
12 March 2012	no value
19 March 2012	no value
26 March 2012	no value
2 April 2012	no value
9 April 2012	no value
16 April 2012	no value
23 April 2012	no value
30 April 2012	no value
7 May 2012	no value
14 May 2012	no value
21 May 2012	no value
28 May 2012	no value
4 June 2012	no value
11 June 2012	no value
18 June 2012	no value
25 June 2012	no value
2 July 2012	no value
9 July 2012	no value
16 July 2012	no value
23 July 2012	no value
30 July 2012	no value
6 August 2012	no value
13 August 2012	no value
20 August 2012	no value
27 August 2012	no value
3 September 2012	no value
10 September 2012	no value
17 September 2012	no value
24 September 2012	no value
1 October 2012	no value
8 October 2012	no value
15 October 2012	no value
22 October 2012	no value
29 October 2012	no value
5 November 2012	no value
12 November 2012	no value
19 November 2012	no value
26 November 2012	no value
3 December 2012	no value
10 December 2012	no value
17 December 2012	no value
24 December 2012	no value
31 December 2012	no value
7 January 2013	no value
14 January 2013	no value
21 January 2013	no value
28 January 2013	no value
4 February 2013	no value
11 February 2013	no value
18 February 2013	no value
25 February 2013	no value
4 March 2013	no value
11 March 2013	no value
18 March 2013	no value
25 March 2013	no value
1 April 2013	no value
8 April 2013	no value
15 April 2013	no value
22 April 2013	no value
29 April 2013	no value
6 May 2013	no value
13 May 2013	no value
20 May 2013	no value
27 May 2013	no value
3 June 2013	no value
10 June 2013	no value
17 June 2013	no value
24 June 2013	no value
1 July 2013	no value
8 July 2013	no value
15 July 2013	no value
22 July 2013	no value
29 July 2013	no value
5 August 2013	no value
12 August 2013	no value
19 August 2013	no value
26 August 2013	no value
2 September 2013	no value
9 September 2013	no value
16 September 2013	no value
23 September 2013	no value
30 September 2013	no value
7 October 2013	no value
14 October 2013	no value
21 October 2013	no value
28 October 2013	no value
4 November 2013	no value
11 November 2013	no value
18 November 2013	no value
25 November 2013	-0.830 m
2 December 2013	-0.783 m
9 December 2013	-0.791 m
16 December 2013	-0.659 m
23 December 2013	0.393 m
30 December 2013	-0.021 m
6 January 2014	-0.247 m
13 January 2014	0.077 m
20 January 2014	0.154 m
27 January 2014	-0.049 m
3 February 2014	0.160 m
10 February 2014	0.143 m
17 February 2014	-0.326 m
24 February 2014	-0.057 m
3 March 2014	-0.229 m
10 March 2014	-0.966 m
17 March 2014	-0.479 m
24 March 2014	0.304 m
31 March 2014	0.271 m
7 April 2014	0.229 m
14 April 2014	0.179 m
21 April 2014	0.206 m
28 April 2014	0.259 m
5 May 2014	0.166 m
12 May 2014	0.167 m
19 May 2014	0.183 m
26 May 2014	0.149 m
2 June 2014	0.169 m
9 June 2014	0.116 m
16 June 2014	0.084 m
23 June 2014	0.087 m
30 June 2014	0.097 m
7 July 2014	0.089 m
14 July 2014	0.066 m
21 July 2014	0.134 m
28 July 2014	0.077 m
4 August 2014	0.170 m
11 August 2014	0.157 m
18 August 2014	0.084 m
25 August 2014	0.174 m
1 September 2014	0.083 m
8 September 2014	0.073 m
15 September 2014	0.096 m
22 September 2014	0.074 m
29 September 2014	0.064 m
6 October 2014	0.081 m
13 October 2014	0.204 m
20 October 2014	0.097 m
27 October 2014	0.090 m
3 November 2014	0.287 m
10 November 2014	0.327 m
17 November 2014	0.076 m
24 November 2014	0.224 m
1 December 2014	0.194 m
8 December 2014	0.257 m
15 December 2014	0.253 m
22 December 2014	0.199 m
29 December 2014	0.170 m
5 January 2015	0.159 m
12 January 2015	0.169 m
19 January 2015	0.160 m
26 January 2015	0.190 m
2 February 2015	0.204 m
9 February 2015	0.221 m
16 February 2015	0.431 m
23 February 2015	0.266 m
2 March 2015	0.221 m
9 March 2015	0.186 m
16 March 2015	0.193 m
23 March 2015	0.214 m
30 March 2015	0.244 m
6 April 2015	0.184 m
13 April 2015	0.160 m
20 April 2015	0.137 m
27 April 2015	0.234 m
4 May 2015	0.210 m
11 May 2015	0.157 m
18 May 2015	0.141 m
25 May 2015	0.110 m
1 June 2015	0.096 m
8 June 2015	0.157 m
15 June 2015	0.123 m
22 June 2015	0.074 m
29 June 2015	0.067 m
6 July 2015	0.066 m
13 July 2015	0.033 m
20 July 2015	0.031 m
27 July 2015	0.026 m
3 August 2015	-0.013 m
10 August 2015	0.037 m
17 August 2015	0.049 m
24 August 2015	0.134 m
31 August 2015	0.050 m
7 September 2015	0.027 m
14 September 2015	0.091 m
21 September 2015	0.046 m
28 September 2015	0.039 m
5 October 2015	0.056 m
12 October 2015	0.036 m
19 October 2015	0.043 m
26 October 2015	0.074 m
2 November 2015	0.097 m
9 November 2015	0.084 m
16 November 2015	0.137 m
23 November 2015	0.161 m
30 November 2015	0.109 m
7 December 2015	0.106 m
14 December 2015	0.154 m
21 December 2015	0.137 m
28 December 2015	0.150 m
4 January 2016	0.297 m
11 January 2016	0.187 m
18 January 2016	0.290 m
25 January 2016	0.283 m
1 February 2016	0.207 m
8 February 2016	0.241 m
15 February 2016	0.214 m
22 February 2016	0.260 m
29 February 2016	0.240 m
7 March 2016	0.374 m
14 March 2016	0.286 m
21 March 2016	0.266 m
28 March 2016	0.337 m
4 April 2016	0.277 m
11 April 2016	0.234 m
18 April 2016	0.229 m
25 April 2016	0.249 m
2 May 2016	0.169 m
9 May 2016	0.199 m
16 May 2016	0.181 m
23 May 2016	0.169 m
30 May 2016	0.111 m
6 June 2016	0.117 m
13 June 2016	0.213 m
20 June 2016	0.291 m
27 June 2016	0.136 m
4 July 2016	0.106 m
11 July 2016	0.074 m
18 July 2016	0.056 m
25 July 2016	0.049 m
1 August 2016	0.044 m
8 August 2016	0.039 m
15 August 2016	0.040 m
22 August 2016	0.011 m
29 August 2016	0.190 m
5 September 2016	0.031 m
12 September 2016	0.059 m
19 September 2016	0.044 m
26 September 2016	0.026 m
3 October 2016	-0.003 m
10 October 2016	0.023 m
17 October 2016	0.046 m
24 October 2016	0.041 m
31 October 2016	0.023 m
7 November 2016	0.107 m
14 November 2016	0.079 m
21 November 2016	0.163 m
28 November 2016	0.046 m
5 December 2016	0.080 m
12 December 2016	0.089 m
19 December 2016	0.099 m
26 December 2016	0.096 m
2 January 2017	0.086 m
9 January 2017	0.134 m
16 January 2017	0.177 m
23 January 2017	0.084 m
30 January 2017	0.226 m
6 February 2017	0.294 m
13 February 2017	0.183 m
20 February 2017	0.120 m
27 February 2017	0.184 m
6 March 2017	0.143 m
13 March 2017	0.167 m
20 March 2017	0.147 m
27 March 2017	0.114 m
3 April 2017	0.089 m
10 April 2017	0.090 m
17 April 2017	0.095 m
24 April 2017	0.095 m
1 May 2017	0.285 m
8 May 2017	0.160 m
15 May 2017	0.068 m
22 May 2017	0.087 m
29 May 2017	0.088 m
5 June 2017	0.086 m
12 June 2017	0.054 m
19 June 2017	0.050 m
26 June 2017	0.057 m
3 July 2017	0.053 m
10 July 2017	0.067 m
17 July 2017	0.069 m
24 July 2017	0.072 m
31 July 2017	0.049 m
7 August 2017	0.082 m
14 August 2017	0.048 m
21 August 2017	0.042 m
28 August 2017	0.060 m
4 September 2017	0.076 m
11 September 2017	0.094 m
18 September 2017	0.067 m
25 September 2017	0.088 m
2 October 2017	0.073 m
9 October 2017	0.067 m
16 October 2017	0.090 m
23 October 2017	0.074 m
30 October 2017	0.090 m
6 November 2017	0.114 m
13 November 2017	0.080 m
20 November 2017	0.113 m
27 November 2017	0.249 m
4 December 2017	0.247 m
11 December 2017	0.289 m
18 December 2017	0.240 m
25 December 2017	0.301 m
1 January 2018	0.421 m
8 January 2018	0.313 m
15 January 2018	0.253 m
22 January 2018	0.291 m
29 January 2018	0.252 m
5 February 2018	0.206 m
12 February 2018	0.240 m
19 February 2018	0.326 m
26 February 2018	0.281 m
5 March 2018	0.303 m
12 March 2018	0.317 m
19 March 2018	0.300 m
26 March 2018	0.258 m
2 April 2018	0.270 m
9 April 2018	0.203 m
16 April 2018	0.239 m
23 April 2018	0.197 m
30 April 2018	0.242 m
7 May 2018	0.153 m
14 May 2018	0.104 m
21 May 2018	0.112 m
28 May 2018	0.174 m
4 June 2018	0.298 m
11 June 2018	0.335 m
18 June 2018	0.200 m
25 June 2018	0.133 m
2 July 2018	0.100 m
9 July 2018	0.065 m
16 July 2018	0.052 m
23 July 2018	0.024 m
30 July 2018	0.072 m
6 August 2018	0.062 m
13 August 2018	0.096 m
20 August 2018	0.062 m
27 August 2018	0.083 m
3 September 2018	0.030 m
10 September 2018	-0.031 m
17 September 2018	0.087 m
24 September 2018	0.090 m
1 October 2018	0.104 m
8 October 2018	0.129 m
15 October 2018	0.070 m
22 October 2018	0.081 m
29 October 2018	0.067 m
5 November 2018	0.099 m
12 November 2018	0.097 m
19 November 2018	0.109 m
26 November 2018	0.224 m
3 December 2018	0.261 m
10 December 2018	0.184 m
17 December 2018	0.273 m
24 December 2018	0.176 m
31 December 2018	0.136 m
7 January 2019	0.142 m
14 January 2019	0.156 m
21 January 2019	0.244 m
28 January 2019	0.328 m
4 February 2019	0.300 m
11 February 2019	0.268 m
18 February 2019	0.215 m
25 February 2019	0.182 m
4 March 2019	0.228 m
11 March 2019	0.215 m
18 March 2019	0.201 m
25 March 2019	0.140 m
1 April 2019	0.165 m
8 April 2019	0.167 m
15 April 2019	0.150 m
22 April 2019	0.221 m
29 April 2019	0.164 m
6 May 2019	0.230 m
13 May 2019	0.166 m
20 May 2019	0.133 m
27 May 2019	0.114 m
3 June 2019	0.135 m
10 June 2019	0.175 m
17 June 2019	0.147 m
24 June 2019	0.111 m
1 July 2019	0.077 m
8 July 2019	0.074 m
15 July 2019	0.112 m
22 July 2019	0.065 m
29 July 2019	0.056 m
5 August 2019	0.063 m
12 August 2019	0.071 m
19 August 2019	0.071 m
26 August 2019	0.060 m
2 September 2019	0.055 m
9 September 2019	0.058 m
16 September 2019	0.063 m
23 September 2019	0.104 m
30 September 2019	0.079 m
7 October 2019	0.115 m
14 October 2019	0.168 m
21 October 2019	0.158 m
28 October 2019	0.224 m
4 November 2019	0.280 m
11 November 2019	0.348 m
18 November 2019	0.249 m
25 November 2019	0.269 m
2 December 2019	0.219 m
9 December 2019	0.228 m
16 December 2019	0.413 m
23 December 2019	0.268 m
30 December 2019	0.228 m
6 January 2020	0.226 m
13 January 2020	0.209 m
20 January 2020	0.160 m
27 January 2020	0.236 m
3 February 2020	0.216 m
10 February 2020	0.253 m
17 February 2020	0.200 m
24 February 2020	0.239 m
2 March 2020	0.225 m
9 March 2020	0.217 m
16 March 2020	0.165 m
23 March 2020	0.162 m
30 March 2020	0.154 m
6 April 2020	0.147 m
13 April 2020	0.155 m
20 April 2020	0.158 m
27 April 2020	0.175 m
4 May 2020	0.186 m
11 May 2020	0.128 m
18 May 2020	0.088 m
25 May 2020	0.060 m
1 June 2020	0.064 m
8 June 2020	0.120 m
15 June 2020	0.140 m
22 June 2020	0.066 m
29 June 2020	0.072 m
6 July 2020	0.084 m
13 July 2020	0.073 m
20 July 2020	0.062 m
27 July 2020	0.076 m
3 August 2020	0.070 m
10 August 2020	0.114 m
17 August 2020	0.096 m
24 August 2020	0.083 m
31 August 2020	0.092 m
7 September 2020	0.076 m
14 September 2020	0.106 m
21 September 2020	0.137 m
28 September 2020	0.202 m
5 October 2020	0.141 m
12 October 2020	0.129 m
19 October 2020	0.188 m
26 October 2020	0.187 m
2 November 2020	0.153 m
9 November 2020	0.158 m
16 November 2020	0.172 m
23 November 2020	0.178 m
30 November 2020	0.188 m
7 December 2020	0.232 m
14 December 2020	0.219 m
21 December 2020	0.301 m
28 December 2020	0.223 m
4 January 2021	0.203 m
11 January 2021	0.166 m
18 January 2021	0.188 m
25 January 2021	0.211 m
1 February 2021	0.273 m
8 February 2021	0.167 m
15 February 2021	0.188 m
22 February 2021	0.205 m
1 March 2021	0.185 m
8 March 2021	0.190 m
15 March 2021	0.160 m
22 March 2021	0.161 m
29 March 2021	0.149 m
5 April 2021	0.181 m
12 April 2021	0.185 m
19 April 2021	0.153 m
26 April 2021	0.126 m
3 May 2021	0.121 m
10 May 2021	0.151 m
17 May 2021	0.157 m
24 May 2021	0.188 m
31 May 2021	0.134 m
7 June 2021	0.089 m
14 June 2021	0.133 m
21 June 2021	0.176 m
28 June 2021	0.194 m
5 July 2021	0.192 m
12 July 2021	0.185 m
19 July 2021	0.147 m
26 July 2021	0.154 m
2 August 2021	0.162 m
9 August 2021	0.143 m
16 August 2021	0.102 m
23 August 2021	0.087 m
30 August 2021	0.078 m
6 September 2021	0.094 m
13 September 2021	0.076 m
20 September 2021	0.069 m
27 September 2021	0.132 m
4 October 2021	0.184 m
11 October 2021	0.128 m
18 October 2021	0.144 m
25 October 2021	0.141 m
1 November 2021	0.192 m
8 November 2021	0.195 m
15 November 2021	0.148 m
22 November 2021	0.158 m
29 November 2021	0.203 m
6 December 2021	0.199 m
13 December 2021	0.148 m
20 December 2021	0.212 m
27 December 2021	0.195 m
3 January 2022	0.237 m
10 January 2022	0.196 m
17 January 2022	0.199 m
24 January 2022	0.188 m
31 January 2022	0.185 m
7 February 2022	0.166 m
14 February 2022	0.232 m
21 February 2022	0.173 m
28 February 2022	0.186 m
7 March 2022	0.187 m
14 March 2022	0.166 m
21 March 2022	0.153 m
28 March 2022	0.148 m
4 April 2022	0.170 m
11 April 2022	0.172 m
18 April 2022	0.168 m
25 April 2022	0.157 m
2 May 2022	0.132 m
9 May 2022	0.124 m
16 May 2022	0.120 m
23 May 2022	0.151 m
30 May 2022	0.108 m
6 June 2022	0.118 m
13 June 2022	0.103 m
20 June 2022	0.096 m
27 June 2022	-0.095 m
4 July 2022	-0.144 m
11 July 2022	-0.193 m
18 July 2022	-0.153 m
25 July 2022	-0.078 m
1 August 2022	0.053 m
8 August 2022	0.060 m
15 August 2022	0.068 m
22 August 2022	0.061 m
29 August 2022	0.132 m
5 September 2022	0.087 m
12 September 2022	0.114 m
19 September 2022	0.066 m
26 September 2022	0.096 m
3 October 2022	0.046 m
10 October 2022	0.110 m
17 October 2022	0.119 m
24 October 2022	0.108 m
31 October 2022	0.120 m
7 November 2022	0.131 m
14 November 2022	0.164 m
21 November 2022	0.171 m
28 November 2022	0.167 m
5 December 2022	0.112 m
12 December 2022	0.124 m
19 December 2022	0.229 m
26 December 2022	0.223 m
2 January 2023	0.214 m
9 January 2023	0.217 m
16 January 2023	0.174 m
23 January 2023	0.209 m
30 January 2023	0.215 m
6 February 2023	0.176 m
13 February 2023	0.154 m
20 February 2023	0.152 m
27 February 2023	0.173 m
6 March 2023	0.139 m
13 March 2023	0.180 m
20 March 2023	0.213 m
27 March 2023	0.203 m
3 April 2023	0.181 m
10 April 2023	0.208 m
17 April 2023	0.200 m
24 April 2023	0.186 m
1 May 2023	0.206 m
8 May 2023	0.189 m
15 May 2023	0.160 m
22 May 2023	0.158 m
29 May 2023	0.124 m
5 June 2023	0.123 m
12 June 2023	0.113 m
19 June 2023	0.102 m
26 June 2023	0.078 m
3 July 2023	0.101 m
10 July 2023	0.086 m
17 July 2023	0.078 m
24 July 2023	0.126 m
31 July 2023	0.164 m
7 August 2023	0.100 m
14 August 2023	0.094 m
21 August 2023	0.074 m
28 August 2023	0.079 m
4 September 2023	0.029 m
11 September 2023	0.031 m
18 September 2023	0.063 m
25 September 2023	0.076 m
2 October 2023	0.063 m
9 October 2023	0.067 m
16 October 2023	0.131 m
23 October 2023	0.180 m
30 October 2023	0.202 m
6 November 2023	0.183 m
13 November 2023	0.195 m
20 November 2023	0.187 m
27 November 2023	0.157 m
4 December 2023	0.203 m
11 December 2023	0.167 m
18 December 2023	0.184 m
25 December 2023	0.169 m
1 January 2024	0.203 m
8 January 2024	0.152 m
15 January 2024	0.211 m
22 January 2024	0.166 m
29 January 2024	0.128 m
5 February 2024	0.190 m
12 February 2024	0.162 m
19 February 2024	0.221 m
26 February 2024	0.213 m
4 March 2024	0.169 m
11 March 2024	0.152 m
18 March 2024	0.157 m
25 March 2024	0.168 m
1 April 2024	0.164 m
8 April 2024	0.138 m
15 April 2024	0.133 m
22 April 2024	0.159 m
29 April 2024	0.132 m
6 May 2024	0.144 m
13 May 2024	0.169 m
20 May 2024	0.163 m
27 May 2024	0.175 m
3 June 2024	0.131 m
10 June 2024	0.117 m
17 June 2024	0.186 m
24 June 2024	0.119 m
1 July 2024	0.091 m
8 July 2024	0.129 m
15 July 2024	0.087 m
22 July 2024	0.082 m
29 July 2024	0.057 m
5 August 2024	0.036 m
12 August 2024	0.007 m
19 August 2024	0.092 m
26 August 2024	0.086 m
2 September 2024	0.167 m
9 September 2024	0.136 m
16 September 2024	0.102 m
23 September 2024	0.164 m
30 September 2024	0.151 m
7 October 2024	0.193 m
14 October 2024	0.231 m
21 October 2024	0.233 m
28 October 2024	0.074 m
4 November 2024	0.039 m
11 November 2024	0.033 m
18 November 2024	0.097 m
25 November 2024	0.073 m
2 December 2024	0.056 m
9 December 2024	0.140 m
16 December 2024	0.171 m
23 December 2024	0.153 m
30 December 2024	0.181 m
6 January 2025	0.249 m
13 January 2025	0.170 m
20 January 2025	0.500 m
27 January 2025	0.551 m
3 February 2025	0.171 m
10 February 2025	0.177 m
17 February 2025	0.159 m
24 February 2025	0.211 m
3 March 2025	0.165 m
10 March 2025	0.131 m
17 March 2025	0.153 m
24 March 2025	0.154 m
31 March 2025	0.140 m
7 April 2025	0.127 m
14 April 2025	0.154 m
21 April 2025	0.165 m
28 April 2025	0.139 m
5 May 2025	0.122 m
12 May 2025	0.115 m
19 May 2025	0.095 m
26 May 2025	0.047 m
2 June 2025	0.078 m
9 June 2025	0.083 m
16 June 2025	0.050 m
23 June 2025	0.044 m
30 June 2025	0.037 m
7 July 2025	0.002 m
14 July 2025	0.085 m
21 July 2025	0.098 m
28 July 2025	0.070 m
4 August 2025	0.040 m
11 August 2025	0.040 m
18 August 2025	0.038 m
25 August 2025	0.085 m
1 September 2025	0.100 m
8 September 2025	0.081 m
15 September 2025	0.067 m
22 September 2025	0.073 m
29 September 2025	0.066 m
6 October 2025	0.061 m
13 October 2025	0.075 m
20 October 2025	0.110 m
27 October 2025	0.134 m
3 November 2025	0.123 m
10 November 2025	0.116 m
17 November 2025	0.123 m
24 November 2025	0.160 m
1 December 2025	0.183 m
8 December 2025	0.150 m
15 December 2025	0.194 m
22 December 2025	0.179 m
29 December 2025	0.167 m
5 January 2026	0.200 m
12 January 2026	0.191 m
19 January 2026	0.201 m
26 January 2026	0.191 m
2 February 2026	0.193 m
9 February 2026	0.288 m
16 February 2026	0.560 m
23 February 2026	0.187 m
2 March 2026	0.175 m
9 March 2026	0.172 m
16 March 2026	0.183 m
23 March 2026	0.157 m
30 March 2026	0.168 m
6 April 2026	0.162 m
13 April 2026	0.140 m
20 April 2026	0.104 m
27 April 2026	0.114 m
4 May 2026	0.215 m
11 May 2026	0.171 m
18 May 2026	0.146 m
25 May 2026	0.098 m
1 June 2026	0.128 m
8 June 2026	0.123 m
15 June 2026	0.104 m
22 June 2026	0.093 m
29 June 2026	0.097 m
6 July 2026	0.081 m
13 July 2026	0.085 m
20 July 2026	0.074 m
27 July 2026	0.046 m
3 August 2026	0.057 m
10 August 2026	0.049 m
17 August 2026	0.036 m
24 August 2026	0.100 m
31 August 2026	0.066 m
7 September 2026	0.061 m
14 September 2026	0.058 m
21 September 2026	0.056 m
28 September 2026	0.100 m
5 October 2026	0.069 m
12 October 2026	0.068 m
19 October 2026	0.098 m

How this compares

The daily high on 25 October 2026 was 0.148 m, the fourth highest for 25 October in 13 years of record (2014 to 2026). The newest value is provisional.
That is 0.03 m above the median of 0.12 m for 25 October over the last 10 years. The newest value is provisional.
So far in 2026 the daily high was below the normal range on 19 of 298 days, the ninth most of the 15 years counted from 2000 to 2026.

Same date in past years

25 October in the last 10 years

Day	Level	Against the normal range for the date
25 October 2025	0.098 m
25 October 2024	0.142 m
25 October 2023	0.134 m
25 October 2022	0.105 m
25 October 2021	0.149 m
25 October 2020	0.249 m
25 October 2019	0.207 m
25 October 2018	0.063 m
25 October 2017	0.075 m
25 October 2016	0.06 m

Year by year

Lowest and highestAcross the year

The lowest and highest daily high of each year

Each year, lowest to highest
The year so far
Lowest in our series

The lowest and highest daily high of the Canal d'Ille et Rance at Saint-Grégoire in each year from 2014 to 2025 with a value on at least 300 days, and in 2026 so far. The lowest daily high in our series since 13 November 2000 was -1.11 m, on 19 March 2014, a provisional value.

Table: The lowest and highest daily high of each year

Year	Lowest daily high (m)	Day	Highest daily high (m)	Day	Days with a value
2014provisional	-1.11 m	19 March	0.67 m	8 February	365
2015provisional	-0.03 m	6 August	0.59 m	21 February	365
2016provisional	-0.20 m	29 August	0.65 m	28 March	366
2017provisional	0.022 m	18 May	0.444 m	10 December	360
2018provisional	-0.145 m	13 September	0.708 m	2 January	338
2019provisional	0.04 m	26 August	0.663 m	21 December	340
2020provisional	-0.013 m	29 June	0.456 m	24 December	365
2021provisional	0.052 m	24 November	0.408 m	4 February	365
2022provisional	-0.239 m	17 July	0.357 m	15 February	364
2023provisional	-0.015 m	10 March	0.51 m	9 March	365
2024provisional	-0.028 m	15 August	0.395 m	22 October	366
2025provisional	-0.18 m	30 May	1.24 m	25 January	365
2026so far, provisional	-0.004 m	19 August	1.078 m	19 February	298

Each year from January to December, weekly averages of daily highs

The year so far
2025, the year before
Year of the lowest day in our series
Other years
Normal range for the week

The weekly averages of daily highs of the Canal d'Ille et Rance at Saint-Grégoire in each year from 2014 to 2025 with a value in at least 26 weeks, and in 2026 so far, on one axis from January to December, with the normal range for each week. The lowest daily high in our series since 13 November 2000 was in 2014. Each week is 7 days counted from 1 January (in a leap year, the weeks after 29 February start a day earlier), the last to 31 December.

Table: Each year from January to December, weekly averages of daily highs

Week	2026 so far Weekly average of daily highs (m)	2014, lowest day Weekly average of daily highs (m)	Normal range (m)
1 Jan to 7 Jan	0.180 m	0.029 m	0.080 m to 0.330 m
8 Jan to 14 Jan	0.208 m	-0.244 m	0.080 m to 0.310 m
15 Jan to 21 Jan	0.203 m	0.159 m	0.120 m to 0.290 m
22 Jan to 28 Jan	0.187 m	0.073 m	0.110 m to 0.320 m
29 Jan to 4 Feb	0.192 m	-0.096 m	0.108 m to 0.342 m
5 Feb to 11 Feb	0.225 m	0.267 m	0.130 m to 0.334 m
12 Feb to 18 Feb	0.313 m	0.000 m	0.134 m to 0.330 m
19 Feb to 25 Feb	0.525 m	-0.294 m	0.126 m to 0.320 m
26 Feb to 4 Mar	0.160 m	0.111 m	0.136 m to 0.300 m
5 Mar to 11 Mar	0.162 m	-0.549 m	0.120 m to 0.300 m
12 Mar to 18 Mar	0.183 m	-1.026 m	0.107 m to 0.291 m
19 Mar to 25 Mar	0.180 m	-0.090 m	0.134 m to 0.300 m
26 Mar to 1 Apr	0.146 m	0.300 m	0.131 m to 0.310 m
2 Apr to 8 Apr	0.184 m	0.271 m	0.123 m to 0.286 m
9 Apr to 15 Apr	0.147 m	0.206 m	0.120 m to 0.250 m
16 Apr to 22 Apr	0.126 m	0.179 m	0.120 m to 0.230 m
23 Apr to 29 Apr	0.094 m	0.253 m	0.124 m to 0.270 m
30 Apr to 6 May	0.187 m	0.206 m	0.120 m to 0.270 m
7 May to 13 May	0.185 m	0.171 m	0.112 m to 0.225 m
14 May to 20 May	0.158 m	0.156 m	0.094 m to 0.210 m
21 May to 27 May	0.133 m	0.189 m	0.078 m to 0.188 m
28 May to 3 Jun	0.099 m	0.139 m	0.074 m to 0.187 m
4 Jun to 10 Jun	0.128 m	0.171 m	0.067 m to 0.204 m
11 Jun to 17 Jun	0.115 m	0.099 m	0.057 m to 0.225 m
18 Jun to 24 Jun	0.094 m	0.084 m	0.047 m to 0.213 m
25 Jun to 1 Jul	0.092 m	0.091 m	0.036 m to 0.180 m
2 Jul to 8 Jul	0.102 m	0.107 m	-0.010 m to 0.151 m
9 Jul to 15 Jul	0.058 m	0.071 m	-0.027 m to 0.156 m
16 Jul to 22 Jul	0.107 m	0.076 m	-0.015 m to 0.152 m
23 Jul to 29 Jul	0.055 m	0.124 m	0.020 m to 0.148 m
30 Jul to 5 Aug	0.047 m	0.079 m	0.020 m to 0.150 m
6 Aug to 12 Aug	0.054 m	0.207 m	0.010 m to 0.158 m
13 Aug to 19 Aug	0.034 m	0.126 m	0.030 m to 0.123 m
20 Aug to 26 Aug	0.053 m	0.136 m	0.034 m to 0.118 m
27 Aug to 2 Sep	0.107 m	0.121 m	0.035 m to 0.130 m
3 Sep to 9 Sep	0.059 m	0.079 m	0.020 m to 0.119 m
10 Sep to 16 Sep	0.065 m	0.076 m	0.030 m to 0.117 m
17 Sep to 23 Sep	0.051 m	0.096 m	0.040 m to 0.131 m
24 Sep to 30 Sep	0.096 m	0.067 m	0.040 m to 0.146 m
1 Oct to 7 Oct	0.066 m	0.071 m	0.030 m to 0.181 m
8 Oct to 14 Oct	0.073 m	0.113 m	0.037 m to 0.193 m
15 Oct to 21 Oct	0.067 m	0.189 m	0.040 m to 0.210 m
22 Oct to 28 Oct	no value	0.077 m	0.040 m to 0.220 m
29 Oct to 4 Nov	no value	0.136 m	0.040 m to 0.223 m
5 Nov to 11 Nov	no value	0.331 m	0.042 m to 0.241 m
12 Nov to 18 Nov	no value	0.266 m	0.064 m to 0.245 m
19 Nov to 25 Nov	no value	0.061 m	0.070 m to 0.243 m
26 Nov to 2 Dec	no value	0.253 m	0.039 m to 0.244 m
3 Dec to 9 Dec	no value	0.186 m	0.030 m to 0.253 m
10 Dec to 16 Dec	no value	0.313 m	0.080 m to 0.266 m
17 Dec to 23 Dec	no value	0.176 m	0.090 m to 0.309 m
24 Dec to 31 Dec	no value	0.239 m	0.090 m to 0.340 m

Every year

Year	Days with a value	Days below the normal range
2026to 25 October 2026	298	19
2025	365	25
2024	366	29
2023	365	13
2022	364	37
2021	365	4
2020	365	18
2019	340	3
2018	338	13
2017	360	67
2016	366	47
2015	365	26
2014	365	61
2013	38	33
2000	1	0

How it compares

That is within the normal range for the date.

Records

Highest daily high in our series since 13 November 2000: 1.29 m on 13 November 2000. Provisional data.
Lowest daily high in our series since 13 November 2000: -1.11 m on 19 March 2014. Provisional data.

Also on this water

About this gauge

Saint-Grégoire is a gauge on the Canal d'Ille et Rance in Ille-et-Vilaine, France.

It lies at 48.1508° N, 1.6793° W.

Its readings come from France's national network of river gauges (Vigicrues and its partners), through Hub'Eau.

Hub'Eau's daily highs for this gauge go back to 13 November 2000.

Hub'Eau's newest readings are mostly raw data that the gauge's operator checks and validates later.

The newest reading is provisional: the source may still correct it.

About these figures

The normal range for 25 October is 0.04 m to 0.22 m: the 10th to 90th percentile of the daily highs from 18 October to 1 November in 12 years between 2013 and 2025.

Keep exploring

Sources

Source : Hub'Eau / SCV, données PHyC (Licence Ouverte Etalab) (source). Licence: Licence Ouverte / Open Licence version 2.0