Confederación Hidrográfica · Spain
Cantábrico Occidental
87.8% llenado medio
Embalses
10
Volumen embalsado
430 hm³
Capacidad total
496 hm³
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Todos los embalses
10 embalsesAlfilorios
Asturias
Fill level
87.5%
7 hm³
/ 8 cap.
Alsa - Mediajo
Cantábrico Occidental
Fill level
100.0%
22 hm³
/ 22 cap.
Arbón
Asturias
Fill level
92.7%
38 hm³
/ 41 cap.
La barca
Asturias
Fill level
82.4%
28 hm³
/ 34 cap.
La Cohilla
Cantabria
Fill level
66.7%
8 hm³
/ 12 cap.
Doiras
Asturias
Fill level
86.6%
84 hm³
/ 97 cap.
Rioseco
Cantábrico Occidental
Fill level
75.0%
3 hm³
/ 4 cap.
Salime
Asturias
Fill level
86.6%
206 hm³
/ 238 cap.
Somiedo (Lagos)
Cantábrico Occidental
Fill level
N/A
6 hm³ cap.
Tanes
Asturias
Fill level
100.0%
34 hm³
/ 34 cap.
About reservoirs in Cantábrico Occidental
As of June 9, 2026, the reservoirs we track across Cantábrico Occidental that report live levels hold roughly 430 hm³ of water — about 87.8% of their combined capacity. Taken together, Cantábrico Occidental's reservoirs are high.
None of the tracked reservoirs are currently at critically low levels. Alsa - Mediajo is the fullest at 100.0%, while La Cohilla is the lowest at 66.7%.
Over the most recent week on record, 1 reservoir rose and 2 reservoirs fell across Cantábrico Occidental.
Storage figures for Cantábrico Occidental come from MITECO; the most recent reading is from June 9, 2026. Each reservoir below links to its own page with full history and seasonal context.
Cantábrico Occidental at a glance
- Reservoirs tracked
- 10
- Average fill
- 87.8%
- Water stored
- 430 hm³
- Combined capacity
- 496 hm³
- Fullest
- Alsa - Mediajo (100.0%)
- Lowest
- La Cohilla (66.7%)
- Last updated
- June 9, 2026
Frequently asked questions
How full are reservoirs in Cantábrico Occidental right now?
As of June 9, 2026, the reservoirs tracked in Cantábrico Occidental that report live levels are 87.8% full overall, holding about 430 hm³ of water.
How many reservoirs are there in Cantábrico Occidental?
reservoirs.earth tracks 10 reservoirs in Cantábrico Occidental, with a combined storage capacity of 496 hm³.
Which reservoir in Cantábrico Occidental is the fullest?
Alsa - Mediajo is currently the fullest reservoir in Cantábrico Occidental, at 100.0% of capacity.
Which reservoir in Cantábrico Occidental is the lowest?
La Cohilla is currently the lowest in Cantábrico Occidental, at 66.7% of capacity.
Where does the reservoir data for Cantábrico Occidental come from?
All storage figures for Cantábrico Occidental come from MITECO, an official source, last updated June 9, 2026.