Cantábrico Oriental basin reservoirs

4 reservoirs monitored

53.4%

Current level

39 hm³

Stored water

73 hm³

Capacity

-1.0 hm³

Weekly change

-15.1 pts

Vs. 2025

-17.9 pts

Vs. 10-year mean

Historical trend

Stored water volume · hm³

hm³

The Cantábrico Oriental basin stands at 53.4%, with 39 hm³ stored out of a total capacity of 73 hm³. Over the last week it lost 1 hm³.

Compared with the same week of 2025: below (-15.1 points). Compared with the 10-year mean: below (-17.9 points).

Within the basin, Ibiur is among the fullest reservoirs, while Ordunte is at the low end.

AñarbeGipuzkoa/GuipúzcoaCapacity: 38 hm³Stored water: 20 hm³Current level: 52.6 %Weekly change: -1 hm³Compared with the same week last year: -21.1 ptsCompared with the 10-year mean: -23.2 pts
IbiurGipuzkoa/GuipúzcoaCapacity: 8 hm³Stored water: 5 hm³Current level: 62.5 %Weekly change: 0 hm³Compared with the same week last year: -12.5 ptsCompared with the 10-year mean: -8.8 pts
OrdunteBurgosCapacity: 22 hm³Stored water: 11 hm³Current level: 50.0 %Weekly change: 0 hm³Compared with the same week last year: -4.5 ptsCompared with the 10-year mean: -10.5 pts
San AntónNavarraCapacity: 5 hm³Stored water: 3 hm³Current level: 60.0 %Weekly change: 0 hm³Compared with the same week last year: -20.0 ptsCompared with the 10-year mean: -26.0 pts