Arenoso
Córdoba · Andalusia · Guadalquivir
Capacity
167 hm³
Coordinates
38.001°N, 4.453°W
Operator
CHGu
68.9% full
Current fill
68.9%vs 13 Oct 2026
0.0 ppstable
vs 1 year ago
+34.8 ppyear-over-year
Trend
→stable
Drought context
Storage vs October average
182%of normal
68.9% full on 2026-10-19, against an average of 37.9% for October across 9 years of readings (+31.0 points).
Rain over the last three months · 11 October 2026
Moderately dry
In the three months to 11 October 2026 the area around Arenoso 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 −1.32). 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 | 167 hm³ |
| Primary use | Multi-purpose |
| Operator | CHGu |
| Province | Córdoba |
| Region | Andalusia |
| River basin | Guadalquivir |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.001°N, 4.453°W · Open in Google Maps
About Arenoso
As of October 19, 2026, Arenoso is filled to 68.9% of its total capacity, holding 115 hm³ of water out of a maximum 167 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 34.8 points above its level on the same date a year earlier.
Across the readings we hold for Arenoso — 419 data points between October 16, 2018 and October 19, 2026 — the level has ranged from a low of 13.2% (October 18, 2022) to a high of 100.0% (February 17, 2026). On average the reservoir is fullest around April and at its lowest around November.
It is operated by CHGu primarily for multiple purposes. It lies within the Guadalquivir basin at 38.001°N, 4.453°W.
Key facts
- Current fill level
- 68.9% of total capacity
- Water stored
- 115 hm³
- Total capacity
- 167 hm³
- Change since October 13, 2026
- No change
- Year-on-year
- ▲ 34.8 pp
- Primary use
- Multipurpose
- River basin
- Guadalquivir
- Operator
- CHGu
- Coordinates
- 38.001°N, 4.453°W
- Last updated
- October 19, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 19 Oct 2026 | 68.9% | 115 |
| 13 Oct 2026 | 68.9% | 115 |
| 6 Oct 2026 | 69.5% | 116 |
| 29 Sep 2026 | 69.5% | 116 |
| 22 Sep 2026 | 69.5% | 116 |
| 15 Sep 2026 | 69.5% | 116 |
| 8 Sep 2026 | 70.1% | 117 |
| 1 Sep 2026 | 70.1% | 117 |
| 25 Aug 2026 | 70.1% | 117 |
| 18 Aug 2026 | 70.1% | 117 |
| 11 Aug 2026 | 70.7% | 118 |
| 4 Aug 2026 | 71.3% | 119 |