Castro
Zamora · Castile and León · Duero
Capacity
27 hm³
Coordinates
41.577°N, 6.184°W
Operator
CHD
92.6% full
Current fill
92.6%vs 7 days ago
+3.7%gaining
vs 1 year ago
+3.7%year-over-year
7-day trend
↑rising
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 27 hm³ |
| Usable capacity | 24.3 hm³ |
| Primary use | Multi-purpose |
| Operator | CHD |
| Province | Zamora |
| Autonomous community | Castile and León |
| River basin | Duero |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 41.577, -6.184 · Open in Google Maps
About Castro
As of September 7, 2026, Castro is filled to 92.6% of its total capacity, holding roughly 25 hm³ of water out of a maximum 27 hm³. At this level the reservoir is high. Of that total, about 24 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 3.7 percentage points, and it is 3.7 points above its level on the same date a year earlier.
Across the readings we hold for Castro — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 63.0% (February 4, 2020) to a high of 96.3% (May 14, 2019). On average the reservoir is fullest around January and at its lowest around September.
It is operated by CHD primarily for multiple purposes. It lies within the Duero basin at 41.577°N, 6.184°W.
Key facts
- Current fill level
- 92.6%
- Water stored
- 25 hm³
- Total capacity
- 27 hm³
- Usable capacity
- 24 hm³
- 7-day change
- ▲ 3.7 pts
- Year-on-year
- ▲ 3.7 pts
- Primary use
- Multipurpose
- River basin
- Duero
- Operator
- CHD
- Coordinates
- 41.577°N, 6.184°W
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 92.6% | 25 |
| 1 Sep 2026 | 88.9% | 24 |
| 25 Aug 2026 | 88.9% | 24 |
| 18 Aug 2026 | 88.9% | 24 |
| 11 Aug 2026 | 88.9% | 24 |
| 4 Aug 2026 | 88.9% | 24 |
| 28 Jul 2026 | 85.2% | 23 |
| 21 Jul 2026 | 88.9% | 24 |
| 14 Jul 2026 | 88.9% | 24 |
| 7 Jul 2026 | 85.2% | 23 |
| 30 Jun 2026 | 88.9% | 24 |
| 23 Jun 2026 | 88.9% | 24 |