Las Rozas
León · Castile and León · Miño - Sil
Capacity
28 hm³
Coordinates
42.921°N, 6.337°W
Operator
CHS
35.7% full
Current fill
35.7%vs 7 days ago
+3.6%gaining
vs 1 year ago
-35.7%year-over-year
7-day trend
↑rising
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 28 hm³ |
| Usable capacity | 25.2 hm³ |
| Primary use | Multi-purpose |
| Operator | CHS |
| Province | León |
| Autonomous community | Castile and León |
| River basin | Miño - Sil |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.921, -6.337 · Open in Google Maps
About Las Rozas
As of July 27, 2026, Las Rozas is filled to 35.7% of its total capacity, holding roughly 10 hm³ of water out of a maximum 28 hm³. At this level the reservoir is low. Of that total, about 25 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 3.6 percentage points, and it is 35.7 points below its level on the same date a year earlier.
Across the readings we hold for Las Rozas — 420 data points between July 17, 2018 and July 27, 2026 — the level has ranged from a low of 0.0% (October 12, 2021) to a high of 100.0% (February 2, 2021). 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 42.921°N, 6.337°W.
Key facts
- Current fill level
- 35.7%
- Water stored
- 10 hm³
- Total capacity
- 28 hm³
- Usable capacity
- 25 hm³
- 7-day change
- ▲ 3.6 pts
- Year-on-year
- ▼ 35.7 pts
- Primary use
- Multipurpose
- River basin
- Miño - Sil
- Operator
- CHS
- Coordinates
- 42.921°N, 6.337°W
- Last updated
- July 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Jul 2026 | 35.7% | 10 |
| 20 Jul 2026 | 32.1% | 9 |
| 14 Jul 2026 | 32.1% | 9 |
| 7 Jul 2026 | 35.7% | 10 |
| 30 Jun 2026 | 42.9% | 12 |
| 23 Jun 2026 | 46.4% | 13 |
| 16 Jun 2026 | 53.6% | 15 |
| 9 Jun 2026 | 57.1% | 16 |
| 2 Jun 2026 | 60.7% | 17 |
| 26 May 2026 | 64.3% | 18 |
| 19 May 2026 | 67.9% | 19 |
| 12 May 2026 | 71.4% | 20 |
Frequently asked questions
What is the current water level of Las Rozas?
As of July 27, 2026, Las Rozas is at 35.7% of its capacity, holding approximately 10 hm³ of water, according to embalses.net data.
Is Las Rozas reservoir full?
No. As of July 27, 2026, Las Rozas is low at 35.7% of its capacity, so it is not full.
Is the water level at Las Rozas rising or falling?
The level at Las Rozas is rising — it gained 3.6 percentage points over the latest week on record.
How much water can Las Rozas hold?
Las Rozas has a total capacity of 28 hm³, of which about 25 hm³ is usable storage.
Where is Las Rozas reservoir located?
Las Rozas is located in León, Castile and León, Spain, within the Miño - Sil basin (coordinates 42.921°N, 6.337°W).
What is Las Rozas used for?
Las Rozas is used primarily for multiple purposes, and is managed by CHS.