Santa Ana
Huesca · Aragon · Ebro
Capacity
237 hm³
Coordinates
41.896°N, 0.588°E
Operator
CHE
55.7% full
Current fill
55.7%vs 13 Oct 2026
+2.1 ppgaining
vs 1 year ago
-11.4 ppyear-over-year
Trend
↑rising
Drought context
Storage vs October average
113%of normal
55.7% full on 2026-10-19, against an average of 49.2% for October across 9 years of readings (+6.5 points).
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around Santa Ana had rain close to normal for the season. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index +0.31). Rain, not storage.
EU drought indicator · 11 October 2026
Noneno drought signal
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 | 237 hm³ |
| Primary use | Multi-purpose |
| Operator | CHE |
| Province | Huesca |
| Region | Aragon |
| River basin | Ebro |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 41.896°N, 0.588°E · Open in Google Maps
About Santa Ana
As of October 19, 2026, Santa Ana is filled to 55.7% of its total capacity, holding 132 hm³ of water out of a maximum 237 hm³. At this level the reservoir is within its normal operating range.
Since October 13, 2026 the fill level has risen by 2.1 percentage points, and it is 11.4 points below its level on the same date a year earlier.
Across the readings we hold for Santa Ana — 419 data points between October 16, 2018 and October 19, 2026 — the level has ranged from a low of 38.8% (August 16, 2022) to a high of 86.5% (April 30, 2024). 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 41.896°N, 0.588°E.
Key facts
- Current fill level
- 55.7% of total capacity
- Water stored
- 132 hm³
- Total capacity
- 237 hm³
- Change since October 13, 2026
- ▲ 2.1 pp
- Year-on-year
- ▼ 11.4 pp
- Primary use
- Multipurpose
- River basin
- Ebro
- Operator
- CHE
- Coordinates
- 41.896°N, 0.588°E
- Last updated
- October 19, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 19 Oct 2026 | 55.7% | 132 |
| 13 Oct 2026 | 53.6% | 127 |
| 6 Oct 2026 | 51.5% | 122 |
| 29 Sep 2026 | 50.6% | 120 |
| 22 Sep 2026 | 47.7% | 113 |
| 15 Sep 2026 | 47.7% | 113 |
| 8 Sep 2026 | 51.5% | 122 |
| 1 Sep 2026 | 53.2% | 126 |
| 25 Aug 2026 | 53.6% | 127 |
| 18 Aug 2026 | 51.5% | 122 |
| 11 Aug 2026 | 50.2% | 119 |
| 4 Aug 2026 | 49.4% | 117 |