Güístolas
Ourense · Galicia · Miño - Sil
Capacity
5 hm³
Coordinates
42.344°N, 7.303°W
Operator
CHS
80.0% full
Current fill
80.0%vs 7 days ago
0.0%stable
vs 1 year ago
+20.0%year-over-year
7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 5 hm³ |
| Usable capacity | 4.5 hm³ |
| Primary use | Multi-purpose |
| Operator | CHS |
| Province | Ourense |
| Autonomous community | Galicia |
| River basin | Miño - Sil |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.344, -7.303 · Open in Google Maps
About Güístolas
As of September 7, 2026, Güístolas is filled to 80.0% of its total capacity, holding roughly 4 hm³ of water out of a maximum 5 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 20.0 points above its level on the same date a year earlier.
Across the readings we hold for Güístolas — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 20.0% (November 13, 2018) to a high of 100.0% (February 5, 2019). On average the reservoir is fullest around February and at its lowest around June.
It is operated by CHS primarily for multiple purposes. It lies within the Miño - Sil basin at 42.344°N, 7.303°W.
Key facts
- Current fill level
- 80.0%
- Water stored
- 4 hm³
- Total capacity
- 5 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 20.0 pts
- Primary use
- Multipurpose
- River basin
- Miño - Sil
- Operator
- CHS
- Coordinates
- 42.344°N, 7.303°W
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 80.0% | 4 |
| 1 Sep 2026 | 80.0% | 4 |
| 25 Aug 2026 | 80.0% | 4 |
| 18 Aug 2026 | 80.0% | 4 |
| 11 Aug 2026 | 80.0% | 4 |
| 4 Aug 2026 | 80.0% | 4 |
| 28 Jul 2026 | 80.0% | 4 |
| 21 Jul 2026 | 80.0% | 4 |
| 14 Jul 2026 | 60.0% | 3 |
| 7 Jul 2026 | 60.0% | 3 |
| 30 Jun 2026 | 60.0% | 3 |
| 23 Jun 2026 | 60.0% | 3 |