Agua embalsada por cuencas (05-01-2026) (hm3)
| Cuenca |
Capacidad |
Embalsada |
Variación |
| Tajo |
11056 |
6867 |
(62,11%) |
12 |
(0,11%) |
| Guadiana |
9538 |
5814 |
(60,95%) |
52 |
(0,55%) |
| Guadalquivir |
8030 |
3727 |
(46,41%) |
20 |
(0,25%) |
| Ebro |
7802 |
4506 |
(57,75%) |
25 |
(0,32%) |
| Duero |
7602 |
4211 |
(55,39%) |
-43 |
(-0,57%) |
| Miño-Sil |
3030 |
1865 |
(61,55%) |
-26 |
(-0,86%) |
| Júcar |
2846 |
1467 |
(51,55%) |
21 |
(0,74%) |
| Guadalete-Barbate |
1651 |
794 |
(48,09%) |
43 |
(2,60%) |
| Med. Andaluza |
1174 |
600 |
(51,11%) |
60 |
(5,11%) |
| Segura |
1140 |
297 |
(26,05%) |
8 |
(0,70%) |
| Galicia Costa |
684 |
477 |
(69,74%) |
-33 |
(-4,82%) |
| Cataluña Interna |
677 |
575 |
(84,93%) |
55 |
(8,12%) |
| Cantábrico Occidental |
490 |
270 |
(55,10%) |
-9 |
(-1,84%) |
| Tinto, Odiel y Piedras |
229 |
205 |
(89,52%) |
9 |
(3,93%) |
| Cantábrico Oriental |
73 |
52 |
(71,23%) |
-4 |
(-5,48%) |
| País Vasco Interna |
21 |
17 |
(80,95%) |
0 |
(0,00%) |
