Alloz
Estellerria · Navarre · Ebro
Capacity
66 hm³
Coordinates
42.724°N, 1.942°W
Operator
CHE
77.3% full
Current fill
77.3%vs 7 days ago
0.0%stable
vs 1 year ago
-12.1%year-over-year
7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 66 hm³ |
| Usable capacity | 59.4 hm³ |
| Primary use | Multi-purpose |
| Operator | CHE |
| Province | Estellerria |
| Autonomous community | Navarre |
| River basin | Ebro |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.724, -1.942 · Open in Google Maps
About Alloz
As of July 27, 2026, Alloz is filled to 77.3% of its total capacity, holding roughly 51 hm³ of water out of a maximum 66 hm³. At this level the reservoir is within its normal operating range. Of that total, about 59 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 12.1 points below its level on the same date a year earlier.
Across the readings we hold for Alloz — 420 data points between July 17, 2018 and July 27, 2026 — the level has ranged from a low of 16.7% (November 2, 2021) to a high of 93.9% (May 20, 2025). On average the reservoir is fullest around June and at its lowest around November.
It is operated by CHE primarily for multiple purposes. It lies within the Ebro basin at 42.724°N, 1.942°W.
Key facts
- Current fill level
- 77.3%
- Water stored
- 51 hm³
- Total capacity
- 66 hm³
- Usable capacity
- 59 hm³
- 7-day change
- No change
- Year-on-year
- ▼ 12.1 pts
- Primary use
- Multipurpose
- River basin
- Ebro
- Operator
- CHE
- Coordinates
- 42.724°N, 1.942°W
- Last updated
- July 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Jul 2026 | 77.3% | 51 |
| 20 Jul 2026 | 77.3% | 51 |
| 14 Jul 2026 | 80.3% | 53 |
| 7 Jul 2026 | 81.8% | 54 |
| 30 Jun 2026 | 83.3% | 55 |
| 23 Jun 2026 | 83.3% | 55 |
| 16 Jun 2026 | 83.3% | 55 |
| 9 Jun 2026 | 83.3% | 55 |
| 2 Jun 2026 | 83.3% | 55 |
| 26 May 2026 | 83.3% | 55 |
| 19 May 2026 | 86.4% | 57 |
| 12 May 2026 | 86.4% | 57 |
Frequently asked questions
What is the current water level of Alloz?
As of July 27, 2026, Alloz is at 77.3% of its capacity, holding approximately 51 hm³ of water, according to embalses.net data.
Is Alloz reservoir full?
No. As of July 27, 2026, Alloz is within its normal operating range at 77.3% of its capacity, so it is not full.
Is the water level at Alloz rising or falling?
The level at Alloz has been broadly stable over the latest week on record (0.0 points).
How much water can Alloz hold?
Alloz has a total capacity of 66 hm³, of which about 59 hm³ is usable storage.
Where is Alloz reservoir located?
Alloz is located in Estellerria, Navarre, Spain, within the Ebro basin (coordinates 42.724°N, 1.942°W).
What is Alloz used for?
Alloz is used primarily for multiple purposes, and is managed by CHE.