Bao
Ourense · Galicia · Miño - Sil
Capacity
238 hm³
Coordinates
42.219°N, 7.140°W
Operator
CHS
81.1% full
Current fill
81.1%vs 13 Oct 2026
-3.4 pplosing
vs 1 year ago
-7.6 ppyear-over-year
Trend
↓falling
Drought context
Storage vs October average
126%of normal
81.1% full on 2026-10-19, against an average of 64.6% for October across 9 years of readings (+16.5 points).
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around Bao had rain close to normal for the season. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index −0.97). Rain, not storage.
EU drought indicator · 11 October 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 | 238 hm³ |
| Primary use | Multi-purpose |
| Operator | CHS |
| Province | Ourense |
| Region | Galicia |
| River basin | Miño - Sil |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.219°N, 7.140°W · Open in Google Maps
About Bao
As of October 19, 2026, Bao is filled to 81.1% of its total capacity, holding 193 hm³ of water out of a maximum 238 hm³. At this level the reservoir is high.
Since October 13, 2026 the fill level has fallen by 3.4 percentage points, and it is 7.6 points below its level on the same date a year earlier.
Across the readings we hold for Bao — 419 data points between October 16, 2018 and October 19, 2026 — the level has ranged from a low of 46.2% (September 21, 2021) to a high of 96.6% (May 28, 2024). On average the reservoir is fullest around February and at its lowest around November.
It is operated by CHS primarily for multiple purposes. It lies within the Miño - Sil basin at 42.219°N, 7.140°W.
Key facts
- Current fill level
- 81.1% of total capacity
- Water stored
- 193 hm³
- Total capacity
- 238 hm³
- Change since October 13, 2026
- ▼ 3.4 pp
- Year-on-year
- ▼ 7.6 pp
- Primary use
- Multipurpose
- River basin
- Miño - Sil
- Operator
- CHS
- Coordinates
- 42.219°N, 7.140°W
- Last updated
- October 19, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 19 Oct 2026 | 81.1% | 193 |
| 13 Oct 2026 | 84.5% | 201 |
| 6 Oct 2026 | 85.7% | 204 |
| 29 Sep 2026 | 86.6% | 206 |
| 22 Sep 2026 | 87.4% | 208 |
| 15 Sep 2026 | 91.6% | 218 |
| 8 Sep 2026 | 94.1% | 224 |
| 1 Sep 2026 | 93.3% | 222 |
| 25 Aug 2026 | 93.7% | 223 |
| 18 Aug 2026 | 94.1% | 224 |
| 11 Aug 2026 | 92.4% | 220 |
| 4 Aug 2026 | 93.3% | 222 |