Ibai-Eder
Cuencas Internas del País Vasco
Capacity
11 hm³
Coordinates
43.131°N, 2.226°W
Operator
Cuencas Internas del País Vasco
63.6% full
Current fill
63.6%vs 13 Oct 2026
0.0 ppstable
vs 1 year ago
-9.1 ppyear-over-year
Trend
→stable
Drought context
Storage vs October average
98%of normal
63.6% full on 2026-10-19, against an average of 65.2% for October across 9 years of readings (-1.6 points).
Rain over the last three months · 11 October 2026
Moderately dry
In the three months to 11 October 2026 the area around Ibai-Eder had well below normal rain, a shortfall seen about one year in six. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index −1.25). Rain, not storage.
EU drought indicator · 11 October 2026
Warningsoil-moisture 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 | 11 hm³ |
| Primary use | — |
| Operator | Cuencas Internas del País Vasco |
| River basin | Cuencas Internas del País Vasco |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 43.131°N, 2.226°W · Open in Google Maps
About Ibai-Eder
As of October 19, 2026, Ibai-Eder is filled to 63.6% of its total capacity, holding 7 hm³ of water out of a maximum 11 hm³. At this level the reservoir is within its normal operating range.
Since October 13, 2026 the fill level has held broadly steady (+0.0 pp), and it is 9.1 points below its level on the same date a year earlier.
Across the readings we hold for Ibai-Eder — 419 data points between October 16, 2018 and October 19, 2026 — the level has ranged from a low of 63.6% (October 16, 2018) to a high of 100.0% (December 31, 2019). On average the reservoir is fullest around March and at its lowest around October.
It is operated by Cuencas Internas del País Vasco. It lies within the Cuencas Internas del País Vasco basin at 43.131°N, 2.226°W.
Key facts
- Current fill level
- 63.6% of total capacity
- Water stored
- 7 hm³
- Total capacity
- 11 hm³
- Change since October 13, 2026
- No change
- Year-on-year
- ▼ 9.1 pp
- River basin
- Cuencas Internas del País Vasco
- Operator
- Cuencas Internas del País Vasco
- Coordinates
- 43.131°N, 2.226°W
- Last updated
- October 19, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 19 Oct 2026 | 63.6% | 7 |
| 13 Oct 2026 | 63.6% | 7 |
| 6 Oct 2026 | 63.6% | 7 |
| 29 Sep 2026 | 63.6% | 7 |
| 22 Sep 2026 | 63.6% | 7 |
| 15 Sep 2026 | 72.7% | 8 |
| 8 Sep 2026 | 72.7% | 8 |
| 1 Sep 2026 | 72.7% | 8 |
| 25 Aug 2026 | 72.7% | 8 |
| 18 Aug 2026 | 72.7% | 8 |
| 11 Aug 2026 | 72.7% | 8 |
| 4 Aug 2026 | 81.8% | 9 |