Fervenza
O Xallas · Galicia · Galicia Costa
Capacity
103 hm³
Coordinates
42.995°N, 8.980°W
Operator
AGA
45.6% full
Current fill
45.6%vs 7 days ago
-2.0%losing
vs 1 year ago
+1.9%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 103 hm³ |
| Usable capacity | 92.7 hm³ |
| Primary use | Multi-purpose |
| Operator | AGA |
| Province | O Xallas |
| Autonomous community | Galicia |
| River basin | Galicia Costa |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.995, -8.980 · Open in Google Maps
About Fervenza
As of September 7, 2026, Fervenza is filled to 45.6% of its total capacity, holding roughly 47 hm³ of water out of a maximum 103 hm³. At this level the reservoir is within its normal operating range. Of that total, about 93 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 2.0 percentage points, and it is 1.9 points above its level on the same date a year earlier.
Across the readings we hold for Fervenza — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 21.4% (December 28, 2021) to a high of 95.1% (January 17, 2023). On average the reservoir is fullest around May and at its lowest around October.
It is operated by AGA primarily for multiple purposes. It lies within the Galicia Costa basin at 42.995°N, 8.980°W.
Key facts
- Current fill level
- 45.6%
- Water stored
- 47 hm³
- Total capacity
- 103 hm³
- Usable capacity
- 93 hm³
- 7-day change
- ▼ 2.0 pts
- Year-on-year
- ▲ 1.9 pts
- Primary use
- Multipurpose
- River basin
- Galicia Costa
- Operator
- AGA
- Coordinates
- 42.995°N, 8.980°W
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 45.6% | 47 |
| 1 Sep 2026 | 47.6% | 49 |
| 25 Aug 2026 | 47.6% | 49 |
| 18 Aug 2026 | 49.5% | 51 |
| 11 Aug 2026 | 52.4% | 54 |
| 4 Aug 2026 | 54.4% | 56 |
| 28 Jul 2026 | 57.3% | 59 |
| 21 Jul 2026 | 61.2% | 63 |
| 14 Jul 2026 | 61.2% | 63 |
| 7 Jul 2026 | 63.1% | 65 |
| 30 Jun 2026 | 64.1% | 66 |
| 23 Jun 2026 | 65.0% | 67 |