La Tranquera
Zaragoza · Aragon · Ebro
Capacity
82 hm³
Coordinates
41.243°N, 1.791°W
Operator
CHE
45.1% full
Current fill
45.1%vs 7 days ago
-2.5%losing
vs 1 year ago
-20.8%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 82 hm³ |
| Usable capacity | 73.8 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. 41.243, -1.791 · Open in Google Maps
About La Tranquera
As of September 7, 2026, La Tranquera is filled to 45.1% of its total capacity, holding roughly 37 hm³ of water out of a maximum 82 hm³. At this level the reservoir is within its normal operating range. Of that total, about 74 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 2.5 percentage points, and it is 20.8 points below its level on the same date a year earlier.
Across the readings we hold for La Tranquera — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 24.4% (September 5, 2023) to a high of 98.8% (May 28, 2019). On average the reservoir is fullest around April and at its lowest around September.
It is operated by CHE primarily for multiple purposes. It lies within the Ebro basin at 41.243°N, 1.791°W.
Key facts
- Current fill level
- 45.1%
- Water stored
- 37 hm³
- Total capacity
- 82 hm³
- Usable capacity
- 74 hm³
- 7-day change
- ▼ 2.5 pts
- Year-on-year
- ▼ 20.8 pts
- Primary use
- Multipurpose
- River basin
- Ebro
- Operator
- CHE
- Coordinates
- 41.243°N, 1.791°W
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 45.1% | 37 |
| 1 Sep 2026 | 47.6% | 39 |
| 25 Aug 2026 | 50.0% | 41 |
| 18 Aug 2026 | 53.7% | 44 |
| 11 Aug 2026 | 56.1% | 46 |
| 4 Aug 2026 | 59.8% | 49 |
| 28 Jul 2026 | 63.4% | 52 |
| 21 Jul 2026 | 68.3% | 56 |
| 14 Jul 2026 | 73.2% | 60 |
| 7 Jul 2026 | 76.8% | 63 |
| 30 Jun 2026 | 79.3% | 65 |
| 23 Jun 2026 | 82.9% | 68 |