Portodemouros
Terra de Melide · Galicia · Galicia Costa
Capacity
297 hm³
Coordinates
42.850°N, 8.141°W
Operator
AGA
Current fill
76.1%vs 7 days ago
-3.4%losing
vs 1 year ago
+22.6%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 297 hm³ |
| Usable capacity | 267.3 hm³ |
| Primary use | Multi-purpose |
| Operator | AGA |
| Province | Terra de Melide |
| Autonomous community | Galicia |
| River basin | Galicia Costa |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.850, -8.141 · Open in Google Maps
About Portodemouros
As of June 9, 2026, Portodemouros is filled to 76.1% of its total capacity, holding roughly 226 hm³ of water out of a maximum 297 hm³. At this level the reservoir is within its normal operating range. Of that total, about 267 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 3.4 percentage points, and it is 22.6 points above its level on the same date a year earlier.
Across the readings we hold for Portodemouros — 418 data points between June 12, 2018 and June 9, 2026 — the level has ranged from a low of 27.9% (October 28, 2025) to a high of 100.0% (December 24, 2019). On average the reservoir is fullest around February and at its lowest around October.
It is operated by AGA primarily for multiple purposes. It lies within the Galicia Costa basin at 42.850°N, 8.141°W.
Key facts
- Current fill level
- 76.1%
- Water stored
- 226 hm³
- Total capacity
- 297 hm³
- Usable capacity
- 267 hm³
- 7-day change
- ▼ 3.4 pts
- Year-on-year
- ▲ 22.6 pts
- Primary use
- Multipurpose
- River basin
- Galicia Costa
- Operator
- AGA
- Coordinates
- 42.850°N, 8.141°W
- Last updated
- June 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Jun 2026 | 76.1% | 226 |
| 2 Jun 2026 | 79.5% | 236 |
| 26 May 2026 | 82.8% | 246 |
| 19 May 2026 | 85.2% | 253 |
| 12 May 2026 | 86.9% | 258 |
| 5 May 2026 | 88.6% | 263 |
| 28 Apr 2026 | 90.6% | 269 |
| 21 Apr 2026 | 92.9% | 276 |
| 14 Apr 2026 | 94.6% | 281 |
| 7 Apr 2026 | 96.3% | 286 |
| 31 Mar 2026 | 96.6% | 287 |
| 24 Mar 2026 | 96.6% | 287 |
Frequently asked questions
What is the current water level of Portodemouros?
As of June 9, 2026, Portodemouros is at 76.1% of its capacity, holding approximately 226 hm³ of water, according to MITECO data.
Is Portodemouros reservoir full?
No. As of June 9, 2026, Portodemouros is within its normal operating range at 76.1% of its capacity, so it is not full.
Is the water level at Portodemouros rising or falling?
The level at Portodemouros is falling — it dropped 3.4 percentage points over the latest week on record.
How much water can Portodemouros hold?
Portodemouros has a total capacity of 297 hm³, of which about 267 hm³ is usable storage.
Where is Portodemouros reservoir located?
Portodemouros is located in Terra de Melide, Galicia, Spain, within the Galicia Costa basin (coordinates 42.850°N, 8.141°W).
What is Portodemouros used for?
Portodemouros is used primarily for multiple purposes, and is managed by AGA.