San Salvador
Huesca · Aragon · Ebro
Capacity
137 hm³
Coordinates
41.785°N, 0.201°E
Operator
CHE
43.8% full
Current fill
43.8%vs 7 days ago
-3.6%losing
vs 1 year ago
0.0%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 137 hm³ |
| Usable capacity | 123.3 hm³ |
| Primary use | Multi-purpose |
| Operator | CHE |
| Province | Huesca |
| Autonomous community | Aragon |
| River basin | Ebro |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 41.785, 0.201 · Open in Google Maps
About San Salvador
As of September 7, 2026, San Salvador is filled to 43.8% of its total capacity, holding roughly 60 hm³ of water out of a maximum 137 hm³. At this level the reservoir is within its normal operating range. Of that total, about 123 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 3.6 percentage points, and it sits close to where it was a year earlier.
Across the readings we hold for San Salvador — 310 data points between October 6, 2020 and September 7, 2026 — the level has ranged from a low of 40.9% (September 30, 2025) to a high of 99.3% (May 11, 2021). On average the reservoir is fullest around June and at its lowest around September.
It is operated by CHE primarily for multiple purposes. It lies within the Ebro basin at 41.785°N, 0.201°E.
Key facts
- Current fill level
- 43.8%
- Water stored
- 60 hm³
- Total capacity
- 137 hm³
- Usable capacity
- 123 hm³
- 7-day change
- ▼ 3.6 pts
- Year-on-year
- No change
- Primary use
- Multipurpose
- River basin
- Ebro
- Operator
- CHE
- Coordinates
- 41.785°N, 0.201°E
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 43.8% | 60 |
| 1 Sep 2026 | 47.4% | 65 |
| 25 Aug 2026 | 51.1% | 70 |
| 18 Aug 2026 | 54.7% | 75 |
| 11 Aug 2026 | 58.4% | 80 |
| 4 Aug 2026 | 62.8% | 86 |
| 28 Jul 2026 | 67.2% | 92 |
| 21 Jul 2026 | 71.5% | 98 |
| 14 Jul 2026 | 76.6% | 105 |
| 7 Jul 2026 | 80.3% | 110 |
| 30 Jun 2026 | 83.9% | 115 |
| 23 Jun 2026 | 88.3% | 121 |