Sistema Alto Caldarés
Huesca · Aragon · Ebro
Capacity
18 hm³
Coordinates
42.780°N, 0.228°W
Operator
CHE
Current fill
22.2%vs 7 days ago
0.0%stable
vs 1 year ago
0.0%year-over-year
7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 18 hm³ |
| Usable capacity | 16.2 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. 42.780, -0.228 · Open in Google Maps
About Sistema Alto Caldarés
As of June 9, 2026, Sistema Alto Caldarés is filled to 22.2% of its total capacity, holding roughly 4 hm³ of water out of a maximum 18 hm³. At this level the reservoir is low. Of that total, about 16 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 Sistema Alto Caldarés — 418 data points between June 12, 2018 and June 9, 2026 — the level has ranged from a low of 5.6% (December 14, 2021) to a high of 83.3% (June 26, 2018). On average the reservoir is fullest around July and at its lowest around April.
It is operated by CHE primarily for multiple purposes. It lies within the Ebro basin at 42.780°N, 0.228°W.
Key facts
- Current fill level
- 22.2%
- Water stored
- 4 hm³
- Total capacity
- 18 hm³
- Usable capacity
- 16 hm³
- 7-day change
- No change
- Year-on-year
- No change
- Primary use
- Multipurpose
- River basin
- Ebro
- Operator
- CHE
- Coordinates
- 42.780°N, 0.228°W
- Last updated
- June 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Jun 2026 | 22.2% | 4 |
| 2 Jun 2026 | 22.2% | 4 |
| 26 May 2026 | 22.2% | 4 |
| 19 May 2026 | 22.2% | 4 |
| 12 May 2026 | 22.2% | 4 |
| 5 May 2026 | 22.2% | 4 |
| 28 Apr 2026 | 22.2% | 4 |
| 21 Apr 2026 | 22.2% | 4 |
| 14 Apr 2026 | 22.2% | 4 |
| 7 Apr 2026 | 22.2% | 4 |
| 31 Mar 2026 | 22.2% | 4 |
| 24 Mar 2026 | 22.2% | 4 |
Frequently asked questions
What is the current water level of Sistema Alto Caldarés?
As of June 9, 2026, Sistema Alto Caldarés is at 22.2% of its capacity, holding approximately 4 hm³ of water, according to MITECO data.
Is Sistema Alto Caldarés reservoir full?
No. As of June 9, 2026, Sistema Alto Caldarés is low at 22.2% of its capacity, so it is not full.
Is the water level at Sistema Alto Caldarés rising or falling?
The level at Sistema Alto Caldarés has been broadly stable over the latest week on record (0.0 points).
How much water can Sistema Alto Caldarés hold?
Sistema Alto Caldarés has a total capacity of 18 hm³, of which about 16 hm³ is usable storage.
Where is Sistema Alto Caldarés reservoir located?
Sistema Alto Caldarés is located in Huesca, Aragon, Spain, within the Ebro basin (coordinates 42.780°N, 0.228°W).
What is Sistema Alto Caldarés used for?
Sistema Alto Caldarés is used primarily for multiple purposes, and is managed by CHE.