Oliana
Lleida · Catalonia · Ebro
Capacity
84 hm³
Coordinates
42.109°N, 1.304°E
Operator
CHE
60.7% full
Current fill
60.7%vs 7 days ago
-2.4%losing
vs 1 year ago
-20.3%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 84 hm³ |
| Usable capacity | 75.6 hm³ |
| Primary use | Multi-purpose |
| Operator | CHE |
| Province | Lleida |
| Autonomous community | Catalonia |
| River basin | Ebro |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.109, 1.304 · Open in Google Maps
About Oliana
As of September 7, 2026, Oliana is filled to 60.7% of its total capacity, holding roughly 51 hm³ of water out of a maximum 84 hm³. At this level the reservoir is within its normal operating range. Of that total, about 76 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 2.4 percentage points, and it is 20.3 points below its level on the same date a year earlier.
Across the readings we hold for Oliana — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 23.8% (October 17, 2023) to a high of 100.0% (July 2, 2019). On average the reservoir is fullest around June and at its lowest around October.
It is operated by CHE primarily for multiple purposes. It lies within the Ebro basin at 42.109°N, 1.304°E.
Key facts
- Current fill level
- 60.7%
- Water stored
- 51 hm³
- Total capacity
- 84 hm³
- Usable capacity
- 76 hm³
- 7-day change
- ▼ 2.4 pts
- Year-on-year
- ▼ 20.3 pts
- Primary use
- Multipurpose
- River basin
- Ebro
- Operator
- CHE
- Coordinates
- 42.109°N, 1.304°E
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 60.7% | 51 |
| 1 Sep 2026 | 63.1% | 53 |
| 25 Aug 2026 | 61.9% | 52 |
| 18 Aug 2026 | 59.5% | 50 |
| 11 Aug 2026 | 58.3% | 49 |
| 4 Aug 2026 | 59.5% | 50 |
| 28 Jul 2026 | 63.1% | 53 |
| 21 Jul 2026 | 69.0% | 58 |
| 14 Jul 2026 | 76.2% | 64 |
| 7 Jul 2026 | 82.1% | 69 |
| 30 Jun 2026 | 86.9% | 73 |
| 23 Jun 2026 | 88.1% | 74 |