Reservoirs in Euskadi
8 reservoirs monitored
- Reservoirs
- 8
- Provinces
- Araba/Álava, Gipuzkoa/Guipúzcoa
- Basins
- Ebro, Cantábrico Oriental, Cuencas Internas del País Vasco
- Largest
- Ullivarri
Weekly summary
The reservoirs of Euskadi are currently at 60.3%, holding 187 hm³ of water out of a total capacity of 310 hm³. In the latest weekly update the regional water reserve fell by 4 hm³.
Compared with the same week of 2025: below (-7.1 points). Compared with the 10-year mean: below (-6.2 points).
Among the best-supplied reservoirs is Urkulu, while Añarbe is among the lowest levels.
| Reference | Level | Difference |
|---|---|---|
| Previous week | 61.6% | -1.3 pts |
| Same week 2025 | 67.4% | -7.1 pts |
| 10-year mean | 66.5% | -6.2 pts |
Reservoirs by province
Araba/Álava·4 reservoirs·60.5% full
Reservoir / basinCapacityStored waterCurrent levelWeekly change
AlbiñaEbro5 hm³3 hm³60.0 %0 hm³SobrónEbro20 hm³15 hm³75.0 %-1 hm³UllivarriEbro146 hm³88 hm³60.3 %-1 hm³UrrunagaEbro72 hm³41 hm³56.9 %-1 hm³Gipuzkoa/Guipúzcoa·4 reservoirs·59.7% full
Reservoir / basinCapacityStored waterCurrent levelWeekly change
AñarbeCantábrico Oriental38 hm³20 hm³52.6 %-1 hm³Ibai-EderCuencas Internas del País Vasco11 hm³7 hm³63.6 %0 hm³IbiurCantábrico Oriental8 hm³5 hm³62.5 %0 hm³UrkuluCuencas Internas del País Vasco10 hm³8 hm³80.0 %0 hm³