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Canal de Nantes à Brest water level at Saint-Gravé (upstream)

How high is the Canal de Nantes à Brest at Saint-Gravé (upstream) today?

The Canal de Nantes à Brest at Saint-Gravé (upstream) read 0.104 m at .

Level now

0.104 m

Provisional

Where the water stands

0.104 mHighest 1.685 mLowest -1.74 m
The newest reading against the official levels and our records near it.
Table: where the water stands
LevelValue
Newest reading0.104 m,
Highest in our series1.685 m
Lowest in our series-1.74 m
Past day
+0.005 m
Past week
+0.058 m

The gauge reads the height of the water above a fixed zero, not the depth of the river.

Level history

On the Canal de Nantes à Brest at Saint-Gravé (upstream) averaged 0.117 m.

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

The last 90 days, against the normal range for each day -0.2 m 0.0 m 0.2 m 0.117 m
  • Level
  • Normal range for the date
  • Median for the date
  • A year earlier
Daily highs of the Canal de Nantes à Brest at Saint-Gravé (upstream) 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
DayDaily high (m)Normal rangeMedianA year earlier
-0.048 mno valueno value0.098 m
-0.062 mno valueno value0.106 m
-0.076 mno valueno value0.110 m
-0.078 mno valueno value0.098 m
-0.096 mno valueno value0.101 m
-0.099 mno valueno value0.098 m
-0.110 mno valueno value0.098 m
-0.113 mno valueno value0.085 m
-0.125 mno valueno value0.097 m
-0.128 mno valueno value0.081 m
-0.147 mno valueno value0.070 m
-0.157 mno valueno value0.068 m
-0.154 mno valueno value0.054 m
-0.144 mno valueno value0.047 m
-0.156 mno valueno value0.043 m
-0.158 mno valueno value0.032 m
-0.155 mno valueno value0.037 m
-0.158 mno valueno value0.031 m
-0.162 mno valueno value0.014 m
-0.176 mno valueno value0.008 m
-0.181 mno valueno value0.010 m
-0.180 mno valueno value-0.007 m
-0.171 mno valueno value-0.005 m
-0.161 mno valueno value0.310 m
-0.155 mno valueno value0.317 m
-0.154 mno valueno value0.186 m
-0.146 mno valueno value0.119 m
-0.113 mno valueno value0.096 m
-0.103 mno valueno value0.072 m
-0.089 mno valueno value0.059 m
-0.021 mno valueno value0.049 m
-0.010 mno valueno value0.068 m
0.007 mno valueno value0.088 m
0.009 mno valueno value0.105 m
0.018 mno valueno value0.120 m
0.026 mno valueno value0.119 m
0.038 mno valueno value0.157 m
0.041 mno valueno value0.184 m
0.051 mno valueno value0.290 m
0.049 mno valueno value0.252 m
0.054 mno valueno value0.188 m
0.040 mno valueno value0.142 m
0.044 mno valueno value0.135 m
0.031 mno valueno value0.116 m
0.025 mno valueno value0.123 m
0.026 mno valueno value0.117 m
0.021 mno valueno value0.126 m
0.015 mno valueno value0.154 m
0.017 mno valueno value0.135 m
0.034 mno valueno value0.149 m
0.022 mno valueno value0.136 m
0.008 mno valueno value0.148 m
0.010 mno valueno value0.137 m
0.003 mno valueno value0.117 m
-0.003 mno valueno value0.114 m
-0.010 mno valueno value0.112 m
-0.014 mno valueno value0.144 m
-0.018 mno valueno value0.152 m
-0.023 mno valueno value0.163 m
-0.026 mno valueno value0.140 m
-0.031 mno valueno value0.119 m
-0.034 mno valueno value0.119 m
-0.025 mno valueno value0.119 m
-0.028 mno valueno value0.111 m
-0.025 mno valueno value0.110 m
0.015 mno valueno value0.097 m
0.023 mno valueno value0.096 m
0.032 mno valueno value0.105 m
0.020 mno valueno value0.117 m
0.012 mno valueno value0.116 m
0.013 mno valueno value0.109 m
0.013 mno valueno value0.116 m
0.013 mno valueno value0.117 m
0.007 mno valueno value0.112 m
0.025 mno valueno value0.125 m
0.045 mno valueno value0.097 m
0.053 mno valueno value0.092 m
0.033 mno valueno value0.090 m
0.044 mno valueno value0.096 m
0.054 mno valueno value0.104 m
0.049 mno valueno value0.121 m
0.049 mno valueno value0.097 m
0.050 mno valueno value0.096 m
0.048 mno valueno value0.117 m
0.055 mno valueno value0.184 m
0.056 mno valueno value0.229 m
0.063 mno valueno value0.201 m
0.068 mno valueno value0.208 m
0.111 mno valueno value0.213 m
0.117 mno valueno value0.204 m

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

The last 12 months, against the normal range for each day -1 m 0 m 1 m Highest 1.685 m Lowest -1.74 m 0.117 m
  • Level
  • Above the normal range
  • Normal range for the date
  • Median for the date
  • Our record
Daily highs of the Canal de Nantes à Brest at Saint-Gravé (upstream) 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
DayDaily high (m)Normal rangeMedian
0.204 mno valueno value
0.182 mno valueno value
0.157 mno valueno value
0.142 mno valueno value
0.143 mno valueno value
0.146 mno valueno value
0.167 mno valueno value
0.269 mno valueno value
0.278 mno valueno value
0.267 mno valueno value
0.245 mno valueno value
0.201 mno valueno value
0.584 mno valueno value
0.225 mno valueno value
0.595 mno valueno value
0.354 mno valueno value
0.268 mno valueno value
0.522 mno valueno value
0.286 m-1.730 m to 0.451 m0.182 m
0.256 m-1.730 m to 0.424 m0.177 m
0.256 m-1.730 m to 0.386 m0.173 m
0.275 m-1.730 m to 0.376 m0.162 m
0.300 m-1.730 m to 0.361 m0.144 m
0.666 m-1.730 m to 0.361 m0.137 m
0.285 m-1.710 m to 0.375 m0.131 m
0.628 m-1.523 m to 0.361 m0.131 m
0.283 m-1.505 m to 0.361 m0.134 m
0.384 m-1.499 m to 0.375 m0.134 m
0.272 m-1.497 m to 0.375 m0.139 m
0.360 m-1.496 m to 0.383 m0.140 m
0.333 m-1.450 m to 0.383 m0.140 m
0.341 m-1.291 m to 0.374 m0.142 m
0.316 m-0.950 m to 0.374 m0.142 m
0.290 m-0.934 m to 0.374 m0.148 m
0.258 m-0.891 m to 0.383 m0.150 m
0.331 m-0.872 m to 0.374 m0.161 m
0.336 m-0.872 m to 0.358 m0.167 m
0.287 m-0.791 m to 0.346 m0.175 m
0.320 m-0.774 m to 0.346 m0.180 m
0.296 m-0.745 m to 0.346 m0.180 m
0.201 m-0.734 m to 0.363 m0.183 m
0.200 m-0.731 m to 0.368 m0.186 m
0.334 m-0.686 m to 0.431 m0.183 m
0.334 m-0.653 m to 0.431 m0.183 m
0.349 m-0.462 m to 0.431 m0.180 m
0.338 m-0.435 m to 0.431 m0.183 m
0.261 m-0.420 m to 0.431 m0.188 m
0.337 m-0.312 m to 0.431 m0.189 m
0.334 m-0.269 m to 0.398 m0.198 m
0.315 m-0.041 m to 0.454 m0.228 m
0.246 m-0.035 m to 0.464 m0.237 m
0.255 m-0.030 m to 0.529 m0.243 m
0.273 m-0.029 m to 0.634 m0.245 m
0.303 m-0.026 m to 0.810 m0.249 m
0.334 m-0.024 m to 0.942 m0.250 m
0.340 m-0.006 m to 0.951 m0.251 m
0.274 m0.000 m to 0.951 m0.251 m
0.331 m0.012 m to 0.951 m0.251 m
0.331 m0.022 m to 0.951 m0.253 m
0.290 m0.022 m to 0.951 m0.254 m
0.287 m0.022 m to 0.951 m0.265 m
0.298 mno valueno value
0.271 mno valueno value
0.251 mno valueno value
0.247 mno valueno value
0.252 mno valueno value
0.243 mno valueno value
0.243 mno valueno value
0.246 mno valueno value
0.212 mno valueno value
0.227 mno valueno value
0.216 mno valueno value
0.202 mno valueno value
0.228 mno valueno value
0.231 mno valueno value
0.334 mno valueno value
0.336 mno valueno value
0.294 mno valueno value
0.287 mno valueno value
0.435 mno valueno value
0.490 mno valueno value
1.523 mno valueno value
0.559 mno valueno value
0.868 mno valueno value
1.017 mno valueno value
0.992 mno valueno value
0.634 mno valueno value
0.465 mno valueno value
1.155 mno valueno value
1.485 mno valueno value
1.538 mno valueno value
1.490 mno valueno value
1.553 mno valueno value
1.560 mno valueno value
1.524 mno valueno value
1.602 mno valueno value
1.569 mno valueno value
1.288 mno valueno value
1.133 mno valueno value
1.107 mno valueno value
1.031 mno valueno value
0.885 mno valueno value
0.895 mno valueno value
1.260 mno valueno value
1.306 mno valueno value
1.322 mno valueno value
1.464 mno valueno value
1.478 mno valueno value
1.309 mno valueno value
1.304 mno valueno value
1.468 mno valueno value
1.531 mno valueno value
1.479 mno valueno value
1.263 mno valueno value
1.280 mno valueno value
1.278 mno valueno value
1.214 mno valueno value
1.512 mno valueno value
1.528 mno valueno value
1.437 mno valueno value
1.146 mno valueno value
0.892 mno valueno value
0.739 mno valueno value
0.597 mno valueno value
0.486 mno valueno value
0.379 mno valueno value
0.377 mno valueno value
0.282 mno valueno value
0.292 mno valueno value
0.333 mno valueno value
0.280 mno valueno value
0.276 mno valueno value
0.269 mno valueno value
0.277 mno valueno value
0.265 mno valueno value
0.259 mno valueno value
0.262 mno valueno value
0.254 mno valueno value
0.256 mno valueno value
0.336 mno valueno value
0.332 mno valueno value
0.281 mno valueno value
0.262 mno valueno value
0.268 mno valueno value
0.243 mno valueno value
0.281 mno valueno value
0.258 mno valueno value
0.239 mno valueno value
0.223 mno valueno value
0.244 mno valueno value
0.232 mno valueno value
0.215 mno valueno value
0.188 mno valueno value
0.187 mno valueno value
0.192 mno valueno value
0.177 mno valueno value
0.132 mno valueno value
0.075 mno valueno value
0.064 mno valueno value
0.060 mno valueno value
0.049 mno valueno value
0.050 mno valueno value
0.044 mno valueno value
0.023 mno valueno value
0.019 mno valueno value
0.026 mno valueno value
-0.009 mno valueno value
-0.028 mno valueno value
-0.026 mno valueno value
-0.041 mno valueno value
-0.022 mno valueno value
0.313 mno valueno value
0.351 mno valueno value
0.361 mno valueno value
0.333 mno valueno value
0.323 mno valueno value
0.307 mno valueno value
0.310 mno valueno value
0.296 mno valueno value
0.293 mno valueno value
0.269 mno valueno value
0.250 mno valueno value
0.243 mno valueno value
0.249 mno valueno value
0.238 mno valueno value
0.232 mno valueno value
0.236 mno valueno value
0.236 mno valueno value
0.231 mno valueno value
0.263 mno valueno value
0.380 mno valueno value
0.323 mno valueno value
0.323 mno valueno value
0.508 mno valueno value
0.474 mno valueno value
0.347 mno valueno value
0.332 mno valueno value
0.371 mno valueno value
0.450 mno valueno value
0.257 mno valueno value
0.253 mno valueno value
0.258 mno valueno value
0.283 mno valueno value
0.283 mno valueno value
0.249 mno valueno value
0.241 mno valueno value
0.290 mno valueno value
0.306 mno valueno value
0.289 mno valueno value
0.263 mno valueno value
0.237 mno valueno value
0.226 mno valueno value
0.209 mno valueno value
0.195 mno valueno value
0.187 mno valueno value
0.181 mno valueno value
0.166 mno valueno value
0.157 mno valueno value
0.158 mno valueno value
0.164 mno valueno value
0.184 mno valueno value
0.207 mno valueno value
0.202 mno valueno value
0.185 mno valueno value
0.190 mno valueno value
0.188 mno valueno value
0.183 mno valueno value
0.191 mno valueno value
0.189 mno valueno value
0.175 mno valueno value
0.171 mno valueno value
0.164 mno valueno value
0.158 mno valueno value
0.145 mno valueno value
0.134 mno valueno value
0.137 mno valueno value
0.130 mno valueno value
0.129 mno valueno value
0.121 mno valueno value
0.117 mno valueno value
0.124 mno valueno value
0.119 mno valueno value
0.099 mno valueno value
0.085 mno valueno value
0.088 mno valueno value
0.080 mno valueno value
0.079 mno valueno value
0.071 mno valueno value
0.044 mno valueno value
0.056 mno valueno value
0.066 mno valueno value
0.065 mno valueno value
0.077 mno valueno value
0.075 mno valueno value
0.070 mno valueno value
0.052 mno valueno value
0.034 mno valueno value
0.029 mno valueno value
0.020 mno valueno value
0.023 mno valueno value
0.027 mno valueno value
0.012 mno valueno value
0.007 mno valueno value
0.005 mno valueno value
0.027 mno valueno value
0.104 mno valueno value
0.094 mno valueno value
0.069 mno valueno value
0.063 mno valueno value
0.052 mno valueno value
0.044 mno valueno value
0.045 mno valueno value
0.029 mno valueno value
0.008 mno valueno value
-0.004 mno valueno value
-0.012 mno valueno value
-0.048 mno valueno value
-0.062 mno valueno value
-0.076 mno valueno value
-0.078 mno valueno value
-0.096 mno valueno value
-0.099 mno valueno value
-0.110 mno valueno value
-0.113 mno valueno value
-0.125 mno valueno value
-0.128 mno valueno value
-0.147 mno valueno value
-0.157 mno valueno value
-0.154 mno valueno value
-0.144 mno valueno value
-0.156 mno valueno value
-0.158 mno valueno value
-0.155 mno valueno value
-0.158 mno valueno value
-0.162 mno valueno value
-0.176 mno valueno value
-0.181 mno valueno value
-0.180 mno valueno value
-0.171 mno valueno value
-0.161 mno valueno value
-0.155 mno valueno value
-0.154 mno valueno value
-0.146 mno valueno value
-0.113 mno valueno value
-0.103 mno valueno value
-0.089 mno valueno value
-0.021 mno valueno value
-0.010 mno valueno value
0.007 mno valueno value
0.009 mno valueno value
0.018 mno valueno value
0.026 mno valueno value
0.038 mno valueno value
0.041 mno valueno value
0.051 mno valueno value
0.049 mno valueno value
0.054 mno valueno value
0.040 mno valueno value
0.044 mno valueno value
0.031 mno valueno value
0.025 mno valueno value
0.026 mno valueno value
0.021 mno valueno value
0.015 mno valueno value
0.017 mno valueno value
0.034 mno valueno value
0.022 mno valueno value
0.008 mno valueno value
0.010 mno valueno value
0.003 mno valueno value
-0.003 mno valueno value
-0.010 mno valueno value
-0.014 mno valueno value
-0.018 mno valueno value
-0.023 mno valueno value
-0.026 mno valueno value
-0.031 mno valueno value
-0.034 mno valueno value
-0.025 mno valueno value
-0.028 mno valueno value
-0.025 mno valueno value
0.015 mno valueno value
0.023 mno valueno value
0.032 mno valueno value
0.020 mno valueno value
0.012 mno valueno value
0.013 mno valueno value
0.013 mno valueno value
0.013 mno valueno value
0.007 mno valueno value
0.025 mno valueno value
0.045 mno valueno value
0.053 mno valueno value
0.033 mno valueno value
0.044 mno valueno value
0.054 mno valueno value
0.049 mno valueno value
0.049 mno valueno value
0.050 mno valueno value
0.048 mno valueno value
0.055 mno valueno value
0.056 mno valueno value
0.063 mno valueno value
0.068 mno valueno value
0.111 mno valueno value
0.117 mno valueno value

The last 10 years, weekly averages

The last 10 years, weekly averages -1 m 0 m 1 m Highest 1.685 m Lowest -1.74 m 0.074 m
  • Level
  • Our record
Weekly averages of the Canal de Nantes à Brest at Saint-Gravé (upstream) from the week of 7 November 2016 to 25 October 2026.
Table: The last 10 years, weekly averages
Week startingWeekly average of daily highs (m)
-1.730 m
-1.499 m
-0.084 m
-0.084 m
0.127 m
0.144 m
0.159 m
0.136 m
0.131 m
0.174 m
0.199 m
0.177 m
0.449 m
0.264 m
0.074 m
-0.026 m
0.189 m
0.203 m
0.094 m
0.061 m
0.233 m
0.297 m
0.250 m
0.220 m
0.203 m
0.284 m
0.253 m
0.264 m
0.200 m
0.287 m
0.217 m
0.137 m
0.083 m
0.111 m
0.080 m
0.026 m
0.066 m
0.114 m
0.079 m
0.103 m
0.069 m
0.011 m
-0.004 m
0.121 m
0.121 m
0.110 m
0.113 m
0.087 m
0.077 m
0.106 m
0.107 m
-0.807 m
-1.737 m
-1.260 m
-0.171 m
0.153 m
0.186 m
0.291 m
-0.004 m
0.264 m
0.509 m
0.311 m
0.396 m
0.366 m
0.404 m
0.398 m
0.408 m
0.515 m
0.371 m
0.428 m
0.414 m
0.361 m
0.310 m
0.378 m
0.262 m
0.289 m
0.185 m
0.168 m
0.188 m
0.319 m
0.262 m
0.304 m
0.461 m
0.402 m
0.298 m
0.206 m
no value
0.201 m
0.107 m
0.099 m
0.123 m
0.096 m
0.096 m
0.075 m
0.079 m
0.074 m
0.060 m
0.078 m
0.082 m
0.058 m
0.131 m
0.113 m
0.082 m
0.128 m
0.184 m
0.176 m
0.157 m
0.144 m
0.199 m
0.074 m
0.309 m
0.212 m
0.086 m
0.013 m
-0.012 m
0.026 m
0.240 m
0.321 m
no value
0.251 m
0.242 m
0.305 m
0.254 m
0.115 m
0.021 m
0.095 m
0.085 m
-0.014 m
0.208 m
0.285 m
0.310 m
no value
0.261 m
0.207 m
0.229 m
0.322 m
0.320 m
0.276 m
0.183 m
0.134 m
0.114 m
0.087 m
0.091 m
0.087 m
0.093 m
0.122 m
0.060 m
0.072 m
0.089 m
0.073 m
0.138 m
0.130 m
0.142 m
0.337 m
0.293 m
0.334 m
no value
0.489 m
0.427 m
0.633 m
0.461 m
0.492 m
1.173 m
0.990 m
0.209 m
0.094 m
1.019 m
0.374 m
0.648 m
0.724 m
0.495 m
0.749 m
0.483 m
0.774 m
0.424 m
0.276 m
0.291 m
0.280 m
0.205 m
0.159 m
0.234 m
0.259 m
0.259 m
0.103 m
-0.023 m
0.077 m
0.210 m
0.396 m
0.387 m
0.303 m
0.266 m
0.213 m
0.189 m
0.160 m
0.144 m
0.107 m
0.143 m
0.215 m
0.158 m
0.137 m
0.111 m
0.100 m
0.140 m
0.332 m
0.355 m
0.297 m
0.337 m
-0.053 m
-0.357 m
-0.480 m
-0.349 m
-0.723 m
-0.603 m
-0.136 m
0.325 m
0.892 m
0.751 m
0.266 m
0.267 m
0.355 m
0.392 m
0.756 m
0.286 m
0.302 m
0.268 m
0.234 m
0.239 m
0.167 m
0.056 m
0.253 m
0.338 m
0.268 m
0.255 m
0.265 m
0.270 m
0.279 m
0.283 m
0.280 m
0.252 m
0.199 m
0.202 m
0.321 m
0.302 m
0.315 m
0.276 m
0.226 m
0.256 m
0.263 m
0.235 m
0.191 m
0.162 m
0.150 m
0.160 m
0.160 m
-1.344 m
-1.157 m
-1.128 m
-1.498 m
-1.442 m
-1.381 m
-0.809 m
-1.410 m
-1.505 m
-1.417 m
-1.171 m
-0.542 m
-0.176 m
0.011 m
0.222 m
0.280 m
0.264 m
0.234 m
0.159 m
0.092 m
0.064 m
0.293 m
0.149 m
0.150 m
0.162 m
0.095 m
-0.001 m
-0.028 m
0.215 m
0.302 m
0.298 m
0.302 m
0.262 m
0.234 m
0.191 m
0.220 m
0.190 m
0.176 m
0.120 m
0.211 m
0.173 m
0.128 m
0.086 m
0.072 m
-0.029 m
-0.053 m
-0.161 m
-0.114 m
0.018 m
0.057 m
0.098 m
0.072 m
0.049 m
0.074 m
0.068 m
0.071 m
0.122 m
0.141 m
0.169 m
0.238 m
0.169 m
0.030 m
0.199 m
-0.003 m
-0.016 m
0.818 m
0.630 m
0.814 m
0.480 m
0.729 m
0.262 m
0.254 m
0.223 m
0.114 m
0.124 m
0.035 m
0.213 m
0.283 m
0.345 m
0.372 m
0.376 m
0.295 m
0.248 m
0.254 m
0.171 m
0.122 m
-0.019 m
0.067 m
0.234 m
0.216 m
0.198 m
0.175 m
0.132 m
0.152 m
0.130 m
0.126 m
0.168 m
0.214 m
0.150 m
0.117 m
0.084 m
0.104 m
0.086 m
0.069 m
0.158 m
0.117 m
0.119 m
0.081 m
0.139 m
0.247 m
0.339 m
0.304 m
0.307 m
0.259 m
0.288 m
0.403 m
0.299 m
0.259 m
0.323 m
0.784 m
0.274 m
0.702 m
0.330 m
0.254 m
0.506 m
0.268 m
0.320 m
0.526 m
0.397 m
0.267 m
0.276 m
0.317 m
0.536 m
0.299 m
0.271 m
0.268 m
0.274 m
0.137 m
0.189 m
0.221 m
0.037 m
0.173 m
0.240 m
0.258 m
0.207 m
0.190 m
0.234 m
0.198 m
0.179 m
0.145 m
0.133 m
0.113 m
0.123 m
0.149 m
0.204 m
0.166 m
0.124 m
0.165 m
0.155 m
0.259 m
0.242 m
0.425 m
0.298 m
0.295 m
0.282 m
0.072 m
0.252 m
0.236 m
0.278 m
0.228 m
0.194 m
0.270 m
1.059 m
0.417 m
0.640 m
1.452 m
0.472 m
0.312 m
0.322 m
0.418 m
0.281 m
0.281 m
0.294 m
0.271 m
0.118 m
0.130 m
0.307 m
0.280 m
0.283 m
0.259 m
0.294 m
0.196 m
0.175 m
0.180 m
0.182 m
0.159 m
0.100 m
0.094 m
0.083 m
0.107 m
0.150 m
0.101 m
0.072 m
0.025 m
0.145 m
0.080 m
0.190 m
0.129 m
0.130 m
0.137 m
0.107 m
0.110 m
0.103 m
0.203 m
0.186 m
0.353 m
0.309 m
0.411 m
0.315 m
0.282 m
0.311 m
0.301 m
0.282 m
0.234 m
0.273 m
0.841 m
1.189 m
1.398 m
1.166 m
1.405 m
1.342 m
0.536 m
0.285 m
0.283 m
0.253 m
0.205 m
0.068 m
-0.005 m
0.281 m
0.273 m
0.259 m
0.383 m
0.290 m
0.265 m
0.179 m
0.189 m
0.176 m
0.130 m
0.096 m
0.065 m
0.036 m
0.045 m
0.034 m
-0.067 m
-0.133 m
-0.158 m
-0.164 m
-0.046 m
0.040 m
0.029 m
0.013 m
-0.022 m
0.002 m
0.018 m
0.047 m
0.074 m

The whole record since 2016, weekly averages

The whole record since 2016, weekly averages -1 m 0 m 1 m Highest 1.685 m Lowest -1.74 m 0.074 m
  • Level
  • Our record
Weekly averages of the Canal de Nantes à Brest at Saint-Gravé (upstream) from 8 November 2016 to 25 October 2026.
Table: The whole record since 2016, weekly averages
Week startingWeekly average of daily highs (m)
-1.730 m
-1.499 m
-0.084 m
-0.084 m
0.127 m
0.144 m
0.159 m
0.136 m
0.131 m
0.174 m
0.199 m
0.177 m
0.449 m
0.264 m
0.074 m
-0.026 m
0.189 m
0.203 m
0.094 m
0.061 m
0.233 m
0.297 m
0.250 m
0.220 m
0.203 m
0.284 m
0.253 m
0.264 m
0.200 m
0.287 m
0.217 m
0.137 m
0.083 m
0.111 m
0.080 m
0.026 m
0.066 m
0.114 m
0.079 m
0.103 m
0.069 m
0.011 m
-0.004 m
0.121 m
0.121 m
0.110 m
0.113 m
0.087 m
0.077 m
0.106 m
0.107 m
-0.807 m
-1.737 m
-1.260 m
-0.171 m
0.153 m
0.186 m
0.291 m
-0.004 m
0.264 m
0.509 m
0.311 m
0.396 m
0.366 m
0.404 m
0.398 m
0.408 m
0.515 m
0.371 m
0.428 m
0.414 m
0.361 m
0.310 m
0.378 m
0.262 m
0.289 m
0.185 m
0.168 m
0.188 m
0.319 m
0.262 m
0.304 m
0.461 m
0.402 m
0.298 m
0.206 m
no value
0.201 m
0.107 m
0.099 m
0.123 m
0.096 m
0.096 m
0.075 m
0.079 m
0.074 m
0.060 m
0.078 m
0.082 m
0.058 m
0.131 m
0.113 m
0.082 m
0.128 m
0.184 m
0.176 m
0.157 m
0.144 m
0.199 m
0.074 m
0.309 m
0.212 m
0.086 m
0.013 m
-0.012 m
0.026 m
0.240 m
0.321 m
no value
0.251 m
0.242 m
0.305 m
0.254 m
0.115 m
0.021 m
0.095 m
0.085 m
-0.014 m
0.208 m
0.285 m
0.310 m
no value
0.261 m
0.207 m
0.229 m
0.322 m
0.320 m
0.276 m
0.183 m
0.134 m
0.114 m
0.087 m
0.091 m
0.087 m
0.093 m
0.122 m
0.060 m
0.072 m
0.089 m
0.073 m
0.138 m
0.130 m
0.142 m
0.337 m
0.293 m
0.334 m
no value
0.489 m
0.427 m
0.633 m
0.461 m
0.492 m
1.173 m
0.990 m
0.209 m
0.094 m
1.019 m
0.374 m
0.648 m
0.724 m
0.495 m
0.749 m
0.483 m
0.774 m
0.424 m
0.276 m
0.291 m
0.280 m
0.205 m
0.159 m
0.234 m
0.259 m
0.259 m
0.103 m
-0.023 m
0.077 m
0.210 m
0.396 m
0.387 m
0.303 m
0.266 m
0.213 m
0.189 m
0.160 m
0.144 m
0.107 m
0.143 m
0.215 m
0.158 m
0.137 m
0.111 m
0.100 m
0.140 m
0.332 m
0.355 m
0.297 m
0.337 m
-0.053 m
-0.357 m
-0.480 m
-0.349 m
-0.723 m
-0.603 m
-0.136 m
0.325 m
0.892 m
0.751 m
0.266 m
0.267 m
0.355 m
0.392 m
0.756 m
0.286 m
0.302 m
0.268 m
0.234 m
0.239 m
0.167 m
0.056 m
0.253 m
0.338 m
0.268 m
0.255 m
0.265 m
0.270 m
0.279 m
0.283 m
0.280 m
0.252 m
0.199 m
0.202 m
0.321 m
0.302 m
0.315 m
0.276 m
0.226 m
0.256 m
0.263 m
0.235 m
0.191 m
0.162 m
0.150 m
0.160 m
0.160 m
-1.344 m
-1.157 m
-1.128 m
-1.498 m
-1.442 m
-1.381 m
-0.809 m
-1.410 m
-1.505 m
-1.417 m
-1.171 m
-0.542 m
-0.176 m
0.011 m
0.222 m
0.280 m
0.264 m
0.234 m
0.159 m
0.092 m
0.064 m
0.293 m
0.149 m
0.150 m
0.162 m
0.095 m
-0.001 m
-0.028 m
0.215 m
0.302 m
0.298 m
0.302 m
0.262 m
0.234 m
0.191 m
0.220 m
0.190 m
0.176 m
0.120 m
0.211 m
0.173 m
0.128 m
0.086 m
0.072 m
-0.029 m
-0.053 m
-0.161 m
-0.114 m
0.018 m
0.057 m
0.098 m
0.072 m
0.049 m
0.074 m
0.068 m
0.071 m
0.122 m
0.141 m
0.169 m
0.238 m
0.169 m
0.030 m
0.199 m
-0.003 m
-0.016 m
0.818 m
0.630 m
0.814 m
0.480 m
0.729 m
0.262 m
0.254 m
0.223 m
0.114 m
0.124 m
0.035 m
0.213 m
0.283 m
0.345 m
0.372 m
0.376 m
0.295 m
0.248 m
0.254 m
0.171 m
0.122 m
-0.019 m
0.067 m
0.234 m
0.216 m
0.198 m
0.175 m
0.132 m
0.152 m
0.130 m
0.126 m
0.168 m
0.214 m
0.150 m
0.117 m
0.084 m
0.104 m
0.086 m
0.069 m
0.158 m
0.117 m
0.119 m
0.081 m
0.139 m
0.247 m
0.339 m
0.304 m
0.307 m
0.259 m
0.288 m
0.403 m
0.299 m
0.259 m
0.323 m
0.784 m
0.274 m
0.702 m
0.330 m
0.254 m
0.506 m
0.268 m
0.320 m
0.526 m
0.397 m
0.267 m
0.276 m
0.317 m
0.536 m
0.299 m
0.271 m
0.268 m
0.274 m
0.137 m
0.189 m
0.221 m
0.037 m
0.173 m
0.240 m
0.258 m
0.207 m
0.190 m
0.234 m
0.198 m
0.179 m
0.145 m
0.133 m
0.113 m
0.123 m
0.149 m
0.204 m
0.166 m
0.124 m
0.165 m
0.155 m
0.259 m
0.242 m
0.425 m
0.298 m
0.295 m
0.282 m
0.072 m
0.252 m
0.236 m
0.278 m
0.228 m
0.194 m
0.270 m
1.059 m
0.417 m
0.640 m
1.452 m
0.472 m
0.312 m
0.322 m
0.418 m
0.281 m
0.281 m
0.294 m
0.271 m
0.118 m
0.130 m
0.307 m
0.280 m
0.283 m
0.259 m
0.294 m
0.196 m
0.175 m
0.180 m
0.182 m
0.159 m
0.100 m
0.094 m
0.083 m
0.107 m
0.150 m
0.101 m
0.072 m
0.025 m
0.145 m
0.080 m
0.190 m
0.129 m
0.130 m
0.137 m
0.107 m
0.110 m
0.103 m
0.203 m
0.186 m
0.353 m
0.309 m
0.411 m
0.315 m
0.282 m
0.311 m
0.301 m
0.282 m
0.234 m
0.273 m
0.841 m
1.189 m
1.398 m
1.166 m
1.405 m
1.342 m
0.536 m
0.285 m
0.283 m
0.253 m
0.205 m
0.068 m
-0.005 m
0.281 m
0.273 m
0.259 m
0.383 m
0.290 m
0.265 m
0.179 m
0.189 m
0.176 m
0.130 m
0.096 m
0.065 m
0.036 m
0.045 m
0.034 m
-0.067 m
-0.133 m
-0.158 m
-0.164 m
-0.046 m
0.040 m
0.029 m
0.013 m
-0.022 m
0.002 m
0.018 m
0.047 m
0.074 m

Same date in past years

25 October in the last 10 years

DayLevelAgainst the normal range for the date
0.204 m
0.367 m
0.20 m
0.193 m
-1.514 m
0.403 m
0.346 m
0.083 m
0.10 m
no value

Year by year

The lowest and highest daily high of each year

The lowest and highest daily high of each year -1 m 0 m 1 m Lowest -1.74 m, 2017 Highest 1.685 m, 2018
  • Each year, lowest to highest
  • The year so far
  • Lowest in our series
  • Highest in our series
The lowest and highest daily high of the Canal de Nantes à Brest at Saint-Gravé (upstream) in each year from 2017 to 2025 with a value on at least 300 days, and in 2026 so far. The lowest daily high in our series since 8 November 2016 was -1.74 m, on 3 November 2017 and 10 other days, a provisional value. The highest was 1.685 m, on 24 February 2018, a provisional value.
Table: The lowest and highest daily high of each year
YearLowest daily high (m)DayHighest daily high (m)DayDays with a value
provisional-1.74 m0.76 m365
provisional0.003 m1.685 m349
provisional-0.063 m1.471 m325
provisional-0.792 m1.328 m366
provisional-1.526 m0.898 m365
provisional-0.233 m0.965 m365
provisional-0.105 m1.22 m365
provisional-0.134 m1.189 m366
provisional-0.01 m1.614 m365
so far, provisional-0.181 m1.602 m298

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

Each year from January to December, weekly averages of daily highs -1 m 0 m 1 m 2017, lowest day 2018, highest day 2026 so far
  • The year so far
  • , the year before
  • Year of the lowest day in our series
  • Year of the highest day in our series
  • Other years
  • Normal range for the week
The weekly averages of daily highs of the Canal de Nantes à Brest at Saint-Gravé (upstream) in each year from 2017 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 8 November 2016 was in 2017, the highest in 2018. 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 so far Weekly average of daily highs (m), lowest day Weekly average of daily highs (m), highest day Weekly average of daily highs (m)Normal range (m)
to 0.223 m0.133 m0.509 mno value
to 0.528 m0.160 m0.311 mno value
to 0.813 m0.207 m0.396 mno value
to 1.536 m0.170 m0.366 mno value
to 1.130 m0.370 m0.404 mno value
to 1.349 m0.356 m0.398 mno value
to 1.359 m0.089 m0.408 mno value
to 1.122 m-0.014 m0.515 mno value
to 0.347 m0.156 m0.371 mno value
to 0.266 m0.207 m0.428 mno value
to 0.283 m0.107 m0.414 mno value
to 0.242 m0.063 m0.361 mno value
to 0.145 m0.194 m0.310 mno value
to 0.039 m0.300 m0.378 mno value
to 0.077 m0.257 m0.262 mno value
to 0.318 m0.224 m0.289 mno value
to 0.245 m0.200 m0.185 mno value
to 0.323 m0.266 m0.168 mno value
to 0.355 m0.270 m0.188 mno value
to 0.273 m0.260 m0.319 mno value
to 0.229 m0.216 m0.262 mno value
to 0.174 m0.284 m0.304 mno value
to 0.190 m0.219 m0.461 mno value
to 0.155 m0.146 m0.402 mno value
to 0.120 m0.086 m0.298 mno value
to 0.072 m0.107 m0.206 mno value
to 0.063 m0.089 mno valueno value
to 0.018 m0.033 m0.201 mno value
to 0.065 m0.049 m0.107 mno value
to -0.006 m0.119 m0.099 mno value
to -0.100 m0.083 m0.123 mno value
to -0.149 m0.097 m0.096 mno value
to -0.169 m0.077 m0.096 mno value
to -0.132 m0.029 m0.075 mno value
to 0.010 m-0.024 m0.079 mno value
to 0.044 m0.113 m0.074 mno value
to 0.023 m0.120 m0.060 mno value
to -0.003 m0.116 m0.078 mno value
to -0.027 m0.114 m0.082 mno value
to 0.018 m0.089 m0.059 mno value
to 0.031 m0.077 m0.131 mno value
to 0.052 m0.096 m0.113 mno value
to no value0.116 m0.082 mno value
to no value-0.546 m0.128 mno value
to no value-1.739 m0.184 mno value
to no value-1.457 m0.176 m-1.730 m to 0.376 m
to no value-0.243 m0.157 m-1.497 m to 0.375 m
to no value0.149 m0.144 m-0.872 m to 0.374 m
to no value0.176 m0.199 m-0.686 m to 0.431 m
to no value0.314 m0.074 m-0.041 m to 0.454 m
to no value0.019 m0.309 m0.000 m to 0.951 m
to no value0.222 m0.201 mno value
Every year
YearDays with a valueDays below the normal range
to 2980
3650
3660
3650
3653
36523
3663
3250
3490
3659
542

Records

  • Highest daily high in our series since 8 November 2016: 1.685 m on 24 February 2018. Provisional data.
  • Lowest daily high in our series since 8 November 2016: -1.74 m on 3 November 2017. Provisional data.

Also on this water

About this gauge

Saint-Gravé (upstream) is a gauge on the Canal de Nantes à Brest in Morbihan, France.

It lies at 47.7394° N, 2.2573° 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 8 November 2016.

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.

Keep exploring

Sources