Eiras
Pontevedra · Galicia · Galicia Costa
Capacity
22 hm³
Coordinates
42.345°N, 8.481°W
Operator
AGA
Current fill
100.0%vs 7 days ago
0.0%stable
vs 1 year ago
0.0%year-over-year
7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 22 hm³ |
| Usable capacity | 19.8 hm³ |
| Primary use | Multi-purpose |
| Operator | AGA |
| Province | Pontevedra |
| Autonomous community | Galicia |
| River basin | Galicia Costa |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.345, -8.481 · Open in Google Maps
About Eiras
As of June 9, 2026, Eiras is filled to 100.0% of its total capacity, holding roughly 22 hm³ of water out of a maximum 22 hm³. At this level the reservoir is high. Of that total, about 20 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it sits close to where it was a year earlier.
Across the readings we hold for Eiras — 418 data points between June 12, 2018 and June 9, 2026 — the level has ranged from a low of 50.0% (October 14, 2025) to a high of 100.0% (June 12, 2018). On average the reservoir is fullest around April and at its lowest around October.
It is operated by AGA primarily for multiple purposes. It lies within the Galicia Costa basin at 42.345°N, 8.481°W.
Key facts
- Current fill level
- 100.0%
- Water stored
- 22 hm³
- Total capacity
- 22 hm³
- Usable capacity
- 20 hm³
- 7-day change
- No change
- Year-on-year
- No change
- Primary use
- Multipurpose
- River basin
- Galicia Costa
- Operator
- AGA
- Coordinates
- 42.345°N, 8.481°W
- Last updated
- June 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Jun 2026 | 100.0% | 22 |
| 2 Jun 2026 | 100.0% | 22 |
| 26 May 2026 | 100.0% | 22 |
| 19 May 2026 | 100.0% | 22 |
| 12 May 2026 | 100.0% | 22 |
| 5 May 2026 | 100.0% | 22 |
| 28 Apr 2026 | 100.0% | 22 |
| 21 Apr 2026 | 100.0% | 22 |
| 14 Apr 2026 | 100.0% | 22 |
| 7 Apr 2026 | 100.0% | 22 |
| 31 Mar 2026 | 100.0% | 22 |
| 24 Mar 2026 | 100.0% | 22 |
Frequently asked questions
What is the current water level of Eiras?
As of June 9, 2026, Eiras is at 100.0% of its capacity, holding approximately 22 hm³ of water, according to MITECO data.
Is Eiras reservoir full?
Eiras is essentially full, sitting at 100.0% of capacity as of June 9, 2026.
Is the water level at Eiras rising or falling?
The level at Eiras has been broadly stable over the latest week on record (0.0 points).
How much water can Eiras hold?
Eiras has a total capacity of 22 hm³, of which about 20 hm³ is usable storage.
Where is Eiras reservoir located?
Eiras is located in Pontevedra, Galicia, Spain, within the Galicia Costa basin (coordinates 42.345°N, 8.481°W).
What is Eiras used for?
Eiras is used primarily for multiple purposes, and is managed by AGA.