Montearagón
Huesca · Aragon · Ebro
Capacity
52 hm³
Coordinates
42.188°N, 0.362°W
Operator
CHE
50.0% full
Current fill
50.0%vs 7 days ago
-1.9%losing
vs 1 year ago
-36.5%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 52 hm³ |
| Usable capacity | 46.8 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. 42.188, -0.362 · Open in Google Maps
About Montearagón
As of September 7, 2026, Montearagón is filled to 50.0% of its total capacity, holding roughly 26 hm³ of water out of a maximum 52 hm³. At this level the reservoir is within its normal operating range. Of that total, about 47 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 1.9 percentage points, and it is 36.5 points below its level on the same date a year earlier.
Across the readings we hold for Montearagón — 310 data points between October 6, 2020 and September 7, 2026 — the level has ranged from a low of 9.6% (October 25, 2022) to a high of 100.0% (February 10, 2026). On average the reservoir is fullest around April and at its lowest around October.
It is operated by CHE primarily for multiple purposes. It lies within the Ebro basin at 42.188°N, 0.362°W.
Key facts
- Current fill level
- 50.0%
- Water stored
- 26 hm³
- Total capacity
- 52 hm³
- Usable capacity
- 47 hm³
- 7-day change
- ▼ 1.9 pts
- Year-on-year
- ▼ 36.5 pts
- Primary use
- Multipurpose
- River basin
- Ebro
- Operator
- CHE
- Coordinates
- 42.188°N, 0.362°W
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 50.0% | 26 |
| 1 Sep 2026 | 51.9% | 27 |
| 25 Aug 2026 | 53.8% | 28 |
| 18 Aug 2026 | 55.8% | 29 |
| 11 Aug 2026 | 55.8% | 29 |
| 4 Aug 2026 | 57.7% | 30 |
| 28 Jul 2026 | 59.6% | 31 |
| 21 Jul 2026 | 61.5% | 32 |
| 14 Jul 2026 | 63.5% | 33 |
| 7 Jul 2026 | 65.4% | 34 |
| 30 Jun 2026 | 65.4% | 34 |
| 23 Jun 2026 | 67.3% | 35 |