Agua embalsada por cuencas (29-12-2025) (hm3)
| Cuenca |
Capacidad |
Embalsada |
Variación |
| Tajo |
11056 |
6855 |
(62,00%) |
75 |
(0,68%) |
| Guadiana |
9538 |
5762 |
(60,41%) |
65 |
(0,68%) |
| Guadalquivir |
8030 |
3707 |
(46,16%) |
37 |
(0,46%) |
| Ebro |
7802 |
4481 |
(57,43%) |
69 |
(0,88%) |
| Duero |
7602 |
4254 |
(55,96%) |
-28 |
(-0,37%) |
| Miño-Sil |
3030 |
1891 |
(62,41%) |
60 |
(1,98%) |
| Júcar |
2846 |
1446 |
(50,81%) |
22 |
(0,77%) |
| Guadalete-Barbate |
1651 |
751 |
(45,49%) |
28 |
(1,70%) |
| Med. Andaluza |
1174 |
540 |
(46,00%) |
26 |
(2,21%) |
| Segura |
1140 |
281 |
(24,65%) |
12 |
(1,05%) |
| Galicia Costa |
684 |
510 |
(74,56%) |
7 |
(1,02%) |
| Cataluña Interna |
677 |
520 |
(76,81%) |
46 |
(6,79%) |
| Cantábrico Occidental |
490 |
279 |
(56,94%) |
13 |
(2,65%) |
| Tinto, Odiel y Piedras |
229 |
196 |
(85,59%) |
19 |
(8,30%) |
| Cantábrico Oriental |
73 |
56 |
(76,71%) |
1 |
(1,37%) |
| País Vasco Interna |
21 |
17 |
(80,95%) |
0 |
(0,00%) |
