Chanza
Huelva · Andalusia · Guadiana
Capacity
338 hm³
Coordinates
37.600°N, 7.454°W
Operator
CHSU
53.9% full
Current fill
53.9%vs 13 Oct 2026
-1.7 pplosing
vs 1 year ago
-8.2 ppyear-over-year
Trend
↓falling
Drought context
Storage vs October average
106%of normal
53.9% full on 2026-10-19, against an average of 50.9% for October across 9 years of readings (+3.0 points).
Rain over the last three months · 11 October 2026
Severely dry
In the three months to 11 October 2026 the area around Chanza had far less rain than normal, a shortfall seen about one year in fifteen. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index −1.60). Rain, not storage.
EU drought indicator · 11 October 2026
Watchrainfall 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 | 338 hm³ |
| Primary use | Multi-purpose |
| Operator | CHSU |
| Province | Huelva |
| Region | Andalusia |
| River basin | Guadiana |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 37.600°N, 7.454°W · Open in Google Maps
About Chanza
As of October 19, 2026, Chanza is filled to 53.9% of its total capacity, holding 182 hm³ of water out of a maximum 338 hm³. At this level the reservoir is within its normal operating range.
Since October 13, 2026 the fill level has fallen by 1.7 percentage points, and it is 8.2 points below its level on the same date a year earlier.
Across the readings we hold for Chanza — 419 data points between October 16, 2018 and October 19, 2026 — the level has ranged from a low of 35.2% (January 11, 2022) to a high of 96.7% (April 1, 2025). On average the reservoir is fullest around April and at its lowest around November.
It is operated by CHSU primarily for multiple purposes. It lies within the Guadiana basin at 37.600°N, 7.454°W.
Key facts
- Current fill level
- 53.9% of total capacity
- Water stored
- 182 hm³
- Total capacity
- 338 hm³
- Change since October 13, 2026
- ▼ 1.7 pp
- Year-on-year
- ▼ 8.2 pp
- Primary use
- Multipurpose
- River basin
- Guadiana
- Operator
- CHSU
- Coordinates
- 37.600°N, 7.454°W
- Last updated
- October 19, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 19 Oct 2026 | 53.9% | 182 |
| 13 Oct 2026 | 55.6% | 188 |
| 6 Oct 2026 | 57.4% | 194 |
| 29 Sep 2026 | 57.1% | 193 |
| 22 Sep 2026 | 57.4% | 194 |
| 15 Sep 2026 | 58.3% | 197 |
| 8 Sep 2026 | 59.5% | 201 |
| 1 Sep 2026 | 61.2% | 207 |
| 25 Aug 2026 | 63.0% | 213 |
| 18 Aug 2026 | 65.1% | 220 |
| 11 Aug 2026 | 66.9% | 226 |
| 4 Aug 2026 | 68.6% | 232 |