Añarbe
Larraun-Leitzaldea · Navarre · Cantábrico Oriental
Capacity
38 hm³
Coordinates
43.226°N, 1.874°W
Operator
CHCo
60.5% full
Current fill
60.5%vs 7 days ago
-2.7%losing
vs 1 year ago
-13.2%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 38 hm³ |
| Usable capacity | 34.2 hm³ |
| Primary use | Multi-purpose |
| Operator | CHCo |
| Province | Larraun-Leitzaldea |
| Autonomous community | Navarre |
| River basin | Cantábrico Oriental |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 43.226, -1.874 · Open in Google Maps
About Añarbe
As of September 7, 2026, Añarbe is filled to 60.5% of its total capacity, holding roughly 23 hm³ of water out of a maximum 38 hm³. At this level the reservoir is within its normal operating range. Of that total, about 34 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 2.7 percentage points, and it is 13.2 points below its level on the same date a year earlier.
Across the readings we hold for Añarbe — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 60.5% (September 7, 2026) to a high of 94.7% (April 28, 2020). On average the reservoir is fullest around May and at its lowest around September.
It is operated by CHCo primarily for multiple purposes. It lies within the Cantábrico Oriental basin at 43.226°N, 1.874°W.
Key facts
- Current fill level
- 60.5%
- Water stored
- 23 hm³
- Total capacity
- 38 hm³
- Usable capacity
- 34 hm³
- 7-day change
- ▼ 2.7 pts
- Year-on-year
- ▼ 13.2 pts
- Primary use
- Multipurpose
- River basin
- Cantábrico Oriental
- Operator
- CHCo
- Coordinates
- 43.226°N, 1.874°W
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 60.5% | 23 |
| 1 Sep 2026 | 63.2% | 24 |
| 25 Aug 2026 | 65.8% | 25 |
| 18 Aug 2026 | 65.8% | 25 |
| 11 Aug 2026 | 68.4% | 26 |
| 4 Aug 2026 | 68.4% | 26 |
| 28 Jul 2026 | 71.1% | 27 |
| 21 Jul 2026 | 71.1% | 27 |
| 14 Jul 2026 | 73.7% | 28 |
| 7 Jul 2026 | 73.7% | 28 |
| 30 Jun 2026 | 76.3% | 29 |
| 23 Jun 2026 | 76.3% | 29 |