Alfilorios
Asturias · Asturias · Cantábrico Occidental
Capacity
8 hm³
Coordinates
43.292°N, 5.916°W
Operator
CHCoc
37.5% full
Current fill
37.5%vs 7 days ago
-12.5%losing
vs 1 year ago
-12.5%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 8 hm³ |
| Usable capacity | 7.2 hm³ |
| Primary use | Multi-purpose |
| Operator | CHCoc |
| Province | Asturias |
| Autonomous community | Asturias |
| River basin | Cantábrico Occidental |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 43.292, -5.916 · Open in Google Maps
About Alfilorios
As of September 7, 2026, Alfilorios is filled to 37.5% of its total capacity, holding roughly 3 hm³ of water out of a maximum 8 hm³. At this level the reservoir is low. Of that total, about 7 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 12.5 percentage points, and it is 12.5 points below its level on the same date a year earlier.
Across the readings we hold for Alfilorios — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 25.0% (November 11, 2025) to a high of 100.0% (September 4, 2018). On average the reservoir is fullest around April and at its lowest around October.
It is operated by CHCoc primarily for multiple purposes. It lies within the Cantábrico Occidental basin at 43.292°N, 5.916°W.
Key facts
- Current fill level
- 37.5%
- Water stored
- 3 hm³
- Total capacity
- 8 hm³
- Usable capacity
- 7 hm³
- 7-day change
- ▼ 12.5 pts
- Year-on-year
- ▼ 12.5 pts
- Primary use
- Multipurpose
- River basin
- Cantábrico Occidental
- Operator
- CHCoc
- Coordinates
- 43.292°N, 5.916°W
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 37.5% | 3 |
| 1 Sep 2026 | 50.0% | 4 |
| 25 Aug 2026 | 50.0% | 4 |
| 18 Aug 2026 | 50.0% | 4 |
| 11 Aug 2026 | 50.0% | 4 |
| 4 Aug 2026 | 50.0% | 4 |
| 28 Jul 2026 | 62.5% | 5 |
| 21 Jul 2026 | 62.5% | 5 |
| 14 Jul 2026 | 62.5% | 5 |
| 7 Jul 2026 | 62.5% | 5 |
| 30 Jun 2026 | 75.0% | 6 |
| 23 Jun 2026 | 75.0% | 6 |