Yesa
Zaragoza · Aragon · Ebro
Capacity
447 hm³
Coordinates
42.604°N, 1.101°W
Operator
CHE
27.1% full
Current fill
27.1%vs 7 days ago
-4.2%losing
vs 1 year ago
-3.5%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 447 hm³ |
| Usable capacity | 402.3 hm³ |
| Primary use | Multi-purpose |
| Operator | CHE |
| Province | Zaragoza |
| Autonomous community | Aragon |
| River basin | Ebro |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.604, -1.101 · Open in Google Maps
About Yesa
As of September 7, 2026, Yesa is filled to 27.1% of its total capacity, holding roughly 121 hm³ of water out of a maximum 447 hm³. At this level the reservoir is low. Of that total, about 402 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 4.2 percentage points, and it is 3.5 points below its level on the same date a year earlier.
Across the readings we hold for Yesa — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 11.2% (October 18, 2022) to a high of 95.5% (May 19, 2020). On average the reservoir is fullest around March and at its lowest around October.
It is operated by CHE primarily for multiple purposes. It lies within the Ebro basin at 42.604°N, 1.101°W.
Key facts
- Current fill level
- 27.1%
- Water stored
- 121 hm³
- Total capacity
- 447 hm³
- Usable capacity
- 402 hm³
- 7-day change
- ▼ 4.2 pts
- Year-on-year
- ▼ 3.5 pts
- Primary use
- Multipurpose
- River basin
- Ebro
- Operator
- CHE
- Coordinates
- 42.604°N, 1.101°W
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 27.1% | 121 |
| 1 Sep 2026 | 31.3% | 140 |
| 25 Aug 2026 | 35.1% | 157 |
| 18 Aug 2026 | 39.4% | 176 |
| 11 Aug 2026 | 44.5% | 199 |
| 4 Aug 2026 | 49.9% | 223 |
| 28 Jul 2026 | 55.5% | 248 |
| 21 Jul 2026 | 61.1% | 273 |
| 14 Jul 2026 | 66.7% | 298 |
| 7 Jul 2026 | 72.3% | 323 |
| 30 Jun 2026 | 77.0% | 344 |
| 23 Jun 2026 | 81.4% | 364 |