Búbal
Huesca · Aragon · Ebro
Capacity
63 hm³
Coordinates
42.703°N, 0.310°W
Operator
CHE
6.4% full
Current fill
6.4%vs 7 days ago
+0.1%gaining
vs 1 year ago
-9.5%year-over-year
7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 63 hm³ |
| Usable capacity | 56.7 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. 42.703, -0.310 · Open in Google Maps
About Búbal
As of September 7, 2026, Búbal is filled to 6.4% of its total capacity, holding roughly 4 hm³ of water out of a maximum 63 hm³. At this level the reservoir is critically low. Of that total, about 57 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.1 pts), and it is 9.5 points below its level on the same date a year earlier.
Across the readings we hold for Búbal — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 4.8% (October 9, 2018) to a high of 93.7% (November 7, 2023). On average the reservoir is fullest around May and at its lowest around September.
It is operated by CHE primarily for multiple purposes. It lies within the Ebro basin at 42.703°N, 0.310°W.
Key facts
- Current fill level
- 6.4%
- Water stored
- 4 hm³
- Total capacity
- 63 hm³
- Usable capacity
- 57 hm³
- 7-day change
- ▲ 0.1 pts
- Year-on-year
- ▼ 9.5 pts
- Primary use
- Multipurpose
- River basin
- Ebro
- Operator
- CHE
- Coordinates
- 42.703°N, 0.310°W
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 6.4% | 4 |
| 1 Sep 2026 | 6.3% | 4 |
| 25 Aug 2026 | 4.8% | 3 |
| 18 Aug 2026 | 6.3% | 4 |
| 11 Aug 2026 | 11.1% | 7 |
| 4 Aug 2026 | 15.9% | 10 |
| 28 Jul 2026 | 25.4% | 16 |
| 21 Jul 2026 | 34.9% | 22 |
| 14 Jul 2026 | 46.0% | 29 |
| 7 Jul 2026 | 55.6% | 35 |
| 30 Jun 2026 | 65.1% | 41 |
| 23 Jun 2026 | 66.7% | 42 |