Castro
Zamora · Castile and León · Duero
Capacity
27 hm³
Coordinates
41.577°N, 6.184°W
Operator
CHD
Current fill
88.9%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 June 9, 2026, Castro is filled to 88.9% of its total capacity, holding roughly 24 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 — 418 data points between June 12, 2018 and June 9, 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
- 88.9%
- Water stored
- 24 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
- June 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Jun 2026 | 88.9% | 24 |
| 2 Jun 2026 | 85.2% | 23 |
| 26 May 2026 | 92.6% | 25 |
| 19 May 2026 | 88.9% | 24 |
| 12 May 2026 | 88.9% | 24 |
| 5 May 2026 | 92.6% | 25 |
| 28 Apr 2026 | 92.6% | 25 |
| 21 Apr 2026 | 88.9% | 24 |
| 14 Apr 2026 | 92.6% | 25 |
| 7 Apr 2026 | 92.6% | 25 |
| 31 Mar 2026 | 85.2% | 23 |
| 24 Mar 2026 | 88.9% | 24 |
Frequently asked questions
What is the current water level of Castro?
As of June 9, 2026, Castro is at 88.9% of its capacity, holding approximately 24 hm³ of water, according to MITECO data.
Is Castro reservoir full?
No. As of June 9, 2026, Castro is high at 88.9% of its capacity, so it is not full.
Is the water level at Castro rising or falling?
The level at Castro is rising — it gained 3.7 percentage points over the latest week on record.
How much water can Castro hold?
Castro has a total capacity of 27 hm³, of which about 24 hm³ is usable storage.
Where is Castro reservoir located?
Castro is located in Zamora, Castile and León, Spain, within the Duero basin (coordinates 41.577°N, 6.184°W).
What is Castro used for?
Castro is used primarily for multiple purposes, and is managed by CHD.