Reservoirs in the Cuencas Internas del País Vasco

On 6 October 2026 the 2 reservoirs of the Cuencas Internas del País Vasco held 15 hm³ of water, 71.4 percent of their capacity of 21 hm³. That is the same as a week earlier. A year earlier, on 7 October 2025, they held 76.2 percent. That share is within the normal range for the date. We follow 2 reservoirs in the Cuencas Internas del País Vasco. Of the 2 reservoirs with a current reading and a normal range for the date, none read below that range and none above it. Data: 6 October 2026.

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

Level
Normal range for the date
Median for the date
A year earlier

Share of capacity full of the reservoirs of the Cuencas Internas del País Vasco in each weekly bulletin from 6 October 2025 to 6 October 2026, with the normal range for each week and the same weeks a year earlier.

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

Week starting	Share full (percent)	Normal range	Median	A year earlier
6 October 2025	76.2 percent	57.1 percent to 80.0 percent	66.7 percent	90.5 percent
13 October 2025	76.2 percent	57.1 percent to 84.8 percent	66.7 percent	90.5 percent
20 October 2025	76.2 percent	57.1 percent to 84.8 percent	66.7 percent	90.5 percent
27 October 2025	76.2 percent	52.4 percent to 84.6 percent	66.7 percent	95.2 percent
3 November 2025	71.4 percent	52.4 percent to 81.0 percent	66.7 percent	95.2 percent
10 November 2025	71.4 percent	52.4 percent to 81.0 percent	66.7 percent	95.2 percent
17 November 2025	71.4 percent	53.3 percent to 85.7 percent	71.4 percent	95.2 percent
24 November 2025	76.2 percent	57.1 percent to 90.4 percent	71.4 percent	95.2 percent
1 December 2025	76.2 percent	57.7 percent to 94.3 percent	76.2 percent	95.2 percent
8 December 2025	81.0 percent	60.4 percent to 95.2 percent	76.2 percent	100.0 percent
15 December 2025	81.0 percent	60.4 percent to 95.2 percent	81.0 percent	100.0 percent
22 December 2025	81.0 percent	57.7 percent to 95.2 percent	81.0 percent	95.2 percent
29 December 2025	81.0 percent	56.7 percent to 95.2 percent	81.0 percent	95.2 percent
5 January 2026	81.0 percent	52.9 percent to 95.2 percent	85.7 percent	95.2 percent
12 January 2026	85.7 percent	57.1 percent to 95.2 percent	85.7 percent	100.0 percent
19 January 2026	85.7 percent	57.4 percent to 95.2 percent	85.7 percent	100.0 percent
26 January 2026	85.7 percent	57.4 percent to 95.2 percent	90.2 percent	100.0 percent
2 February 2026	90.5 percent	57.4 percent to 100.0 percent	90.5 percent	100.0 percent
9 February 2026	90.5 percent	60.0 percent to 100.0 percent	90.5 percent	95.2 percent
16 February 2026	95.2 percent	62.4 percent to 100.0 percent	90.5 percent	95.2 percent
23 February 2026	95.2 percent	66.7 percent to 100.0 percent	90.5 percent	95.2 percent
2 March 2026	95.2 percent	66.7 percent to 100.0 percent	90.5 percent	95.2 percent
9 March 2026	100.0 percent	66.7 percent to 100.0 percent	95.2 percent	95.2 percent
16 March 2026	95.2 percent	67.3 percent to 100.0 percent	95.2 percent	95.2 percent
23 March 2026	100.0 percent	67.3 percent to 100.0 percent	95.2 percent	95.2 percent
30 March 2026	100.0 percent	70.0 percent to 100.0 percent	90.5 percent	95.2 percent
6 April 2026	100.0 percent	72.0 percent to 100.0 percent	90.5 percent	95.2 percent
13 April 2026	100.0 percent	80.2 percent to 100.0 percent	90.5 percent	95.2 percent
20 April 2026	95.2 percent	81.0 percent to 100.0 percent	90.5 percent	95.2 percent
27 April 2026	95.2 percent	81.0 percent to 100.0 percent	95.2 percent	100.0 percent
4 May 2026	95.2 percent	80.2 percent to 100.0 percent	95.2 percent	100.0 percent
11 May 2026	95.2 percent	81.0 percent to 100.0 percent	90.5 percent	95.2 percent
18 May 2026	95.2 percent	81.0 percent to 100.0 percent	90.5 percent	95.2 percent
25 May 2026	95.2 percent	81.0 percent to 100.0 percent	90.5 percent	100.0 percent
1 June 2026	95.2 percent	81.0 percent to 100.0 percent	90.5 percent	100.0 percent
8 June 2026	95.2 percent	80.2 percent to 100.0 percent	90.5 percent	95.2 percent
15 June 2026	95.2 percent	77.0 percent to 99.0 percent	90.5 percent	95.2 percent
22 June 2026	90.5 percent	76.2 percent to 95.2 percent	90.5 percent	95.2 percent
29 June 2026	85.7 percent	76.2 percent to 95.2 percent	85.7 percent	90.5 percent
6 July 2026	85.7 percent	76.2 percent to 95.2 percent	85.7 percent	90.5 percent
13 July 2026	85.7 percent	72.4 percent to 95.2 percent	85.7 percent	90.5 percent
20 July 2026	85.7 percent	71.4 percent to 90.5 percent	81.0 percent	90.5 percent
27 July 2026	85.7 percent	71.4 percent to 90.5 percent	81.0 percent	85.7 percent
3 August 2026	85.7 percent	70.3 percent to 90.0 percent	81.0 percent	85.7 percent
10 August 2026	81.0 percent	67.3 percent to 85.7 percent	76.2 percent	85.7 percent
17 August 2026	81.0 percent	66.7 percent to 85.7 percent	76.2 percent	85.7 percent
24 August 2026	76.2 percent	66.7 percent to 85.7 percent	76.2 percent	85.7 percent
31 August 2026	76.2 percent	66.7 percent to 85.7 percent	76.2 percent	85.7 percent
7 September 2026	76.2 percent	62.9 percent to 85.7 percent	71.4 percent	76.2 percent
14 September 2026	76.2 percent	60.4 percent to 81.0 percent	71.4 percent	76.2 percent
21 September 2026	71.4 percent	60.0 percent to 81.0 percent	71.4 percent	76.2 percent
28 September 2026	71.4 percent	57.1 percent to 81.0 percent	66.7 percent	76.2 percent
5 October 2026	71.4 percent	57.1 percent to 80.8 percent	66.7 percent	76.2 percent

0 places below normal and 0 places above

Places in Cuencas Internas del País Vasco

Place	Reading	Against normal for the date	Change in a week
Ibai-EderIbai-Eder	7 hm³6 October 2026	within the normal range for the date	0 hm³
UrkuluUrkulu	8 hm³6 October 2026	within the normal range for the date	0 hm³

Rivers and lakes

Water	Places	Below normal (places)	Above normal (places)
Ibai-Ederreservoir, Spain	1	0	0
Urkulureservoir, Spain	1	0	0