El Atance
Guadalajara · Castile-La Mancha · Tajo
Capacity
35 hm³
Coordinates
41.088°N, 2.777°W
Operator
CHT
51.4% full
Current fill
51.4%vs 7 days ago
0.0%stable
vs 1 year ago
-25.7%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
148%of normal
51.4% full on 2026-10-06, against an average of 34.7% for October across 9 years of readings (+16.7 points).
Rain over the last three months · 21 September 2026
Moderately dry
In the three months to 21 September 2026 the area around Atance, El 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 −1.37). Rain, not storage.
EU drought indicator · 11 September 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 | 35 hm³ |
| Usable capacity | 31.5 hm³ |
| Primary use | Multi-purpose |
| Operator | CHT |
| Province | Guadalajara |
| Autonomous community | Castile-La Mancha |
| River basin | Tajo |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 41.088, -2.777 · Open in Google Maps
About El Atance
As of October 6, 2026, El Atance is filled to 51.4% of its total capacity, holding roughly 18 hm³ of water out of a maximum 35 hm³. At this level the reservoir is within its normal operating range. Of that total, about 32 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 25.7 points below its level on the same date a year earlier.
Across the readings we hold for El Atance — 418 data points between October 9, 2018 and October 6, 2026 — the level has ranged from a low of 14.3% (October 3, 2023) to a high of 88.6% (June 17, 2025). On average the reservoir is fullest around June and at its lowest around October.
It is operated by CHT primarily for multiple purposes. It lies within the Tajo basin at 41.088°N, 2.777°W.
Key facts
- Current fill level
- 51.4%
- Water stored
- 18 hm³
- Total capacity
- 35 hm³
- Usable capacity
- 32 hm³
- 7-day change
- No change
- Year-on-year
- ▼ 25.7 pts
- Primary use
- Multipurpose
- River basin
- Tajo
- Operator
- CHT
- Coordinates
- 41.088°N, 2.777°W
- Last updated
- October 6, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 6 Oct 2026 | 51.4% | 18 |
| 29 Sep 2026 | 51.4% | 18 |
| 22 Sep 2026 | 51.4% | 18 |
| 15 Sep 2026 | 51.4% | 18 |
| 8 Sep 2026 | 51.4% | 18 |
| 1 Sep 2026 | 51.4% | 18 |
| 25 Aug 2026 | 51.4% | 18 |
| 18 Aug 2026 | 51.4% | 18 |
| 11 Aug 2026 | 54.3% | 19 |
| 4 Aug 2026 | 54.3% | 19 |
| 28 Jul 2026 | 54.3% | 19 |
| 21 Jul 2026 | 54.3% | 19 |