Caia
Portalegre · Alentejo · Guadiana
Capacity
225 hm³
Coordinates
38.893°N, 7.197°W
Operator
RH7
82.0% full
Current fill
82.0%vs 7 days ago
0.0%stable
vs 1 year ago
N/A7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 225 hm³ |
| Usable capacity | 202.5 hm³ |
| Primary use | Multi-purpose |
| Operator | RH7 |
| River | Guadiana |
| Province | Portalegre |
| Autonomous community | Alentejo |
| River basin | Guadiana |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.893, -7.197 · Open in Google Maps
About Caia
As of September 8, 2026, Caia is filled to 82.0% of its total capacity, holding roughly 185 hm³ of water out of a maximum 225 hm³. At this level the reservoir is high. Of that total, about 203 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts).
Across the readings we hold for Caia — 1 data points between September 8, 2026 and September 8, 2026 — the level has ranged from a low of 82.0% (September 8, 2026) to a high of 82.0% (September 8, 2026).
It is operated by RH7 primarily for multiple purposes. It lies within the Guadiana basin at 38.893°N, 7.197°W.
Key facts
- Current fill level
- 82.0%
- Water stored
- 185 hm³
- Total capacity
- 225 hm³
- Usable capacity
- 203 hm³
- 7-day change
- No change
- Primary use
- Multipurpose
- River
- Guadiana
- River basin
- Guadiana
- Operator
- RH7
- Coordinates
- 38.893°N, 7.197°W
- Last updated
- September 8, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 8 Sep 2026 | 82.0% | 185 |