San Bartolomé
Zaragoza · Aragon · Ebro
Capacity
6 hm³
Coordinates
42.217°N, 1.151°W
Operator
CHE
50.0% full
Current fill
50.0%vs 7 days ago
0.0%stable
vs 1 year ago
0.0%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
106%of normal
50.0% full on 2026-10-06, against an average of 47.3% for October across 9 years of readings (+2.7 points).
Rain over the last three months · 21 September 2026
Extremely dry
In the three months to 21 September 2026 the area around San Bartolomé had extremely little rain for the season, a shortfall seen about one year in forty. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index −2.00). Rain, not storage.
EU drought indicator · 11 September 2026
Watchrainfall deficit
The European Drought Observatory's combined reading of rain, soil moisture and vegetation at this point. Watch means rain has been short, Warning that the soil has dried out, Alert that vegetation is visibly stressed; Recovery means the shortfall is easing. Ground conditions, not the reservoir's storage. Spain drought figures →
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 6 hm³ |
| Usable capacity | 5.4 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. 42.217, -1.151 · Open in Google Maps
About San Bartolomé
As of October 6, 2026, San Bartolomé is filled to 50.0% of its total capacity, holding roughly 3 hm³ of water out of a maximum 6 hm³. At this level the reservoir is within its normal operating range. Of that total, about 5 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it sits close to where it was a year earlier.
Across the readings we hold for San Bartolomé — 418 data points between October 9, 2018 and October 6, 2026 — the level has ranged from a low of 33.3% (October 9, 2018) to a high of 83.3% (October 17, 2023). On average the reservoir is fullest around April and at its lowest around August.
It is operated by CHE primarily for multiple purposes. It lies within the Ebro basin at 42.217°N, 1.151°W.
Key facts
- Current fill level
- 50.0%
- Water stored
- 3 hm³
- Total capacity
- 6 hm³
- Usable capacity
- 5 hm³
- 7-day change
- No change
- Year-on-year
- No change
- Primary use
- Multipurpose
- River basin
- Ebro
- Operator
- CHE
- Coordinates
- 42.217°N, 1.151°W
- Last updated
- October 6, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 6 Oct 2026 | 50.0% | 3 |
| 29 Sep 2026 | 50.0% | 3 |
| 22 Sep 2026 | 50.0% | 3 |
| 15 Sep 2026 | 66.7% | 4 |
| 8 Sep 2026 | 66.7% | 4 |
| 1 Sep 2026 | 66.7% | 4 |
| 25 Aug 2026 | 66.7% | 4 |
| 18 Aug 2026 | 66.7% | 4 |
| 11 Aug 2026 | 66.7% | 4 |
| 4 Aug 2026 | 66.7% | 4 |
| 28 Jul 2026 | 66.7% | 4 |
| 21 Jul 2026 | 66.7% | 4 |