Valmayor
Community of Madrid · Tajo
Capacity
124 hm³
Coordinates
40.551°N, 4.056°W
Operator
CHT
77.4% full
Current fill
77.4%vs 7 days ago
-1.6%losing
vs 1 year ago
-5.7%year-over-year
7-day trend
↓falling
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 124 hm³ |
| Usable capacity | 111.6 hm³ |
| Primary use | Multi-purpose |
| Operator | CHT |
| Autonomous community | Community of Madrid |
| River basin | Tajo |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 40.551, -4.056 · Open in Google Maps
About Valmayor
As of July 27, 2026, Valmayor is filled to 77.4% of its total capacity, holding roughly 96 hm³ of water out of a maximum 124 hm³. At this level the reservoir is within its normal operating range. Of that total, about 112 hm³ is usable (live) storage.
Over the most recent week on record the fill level has fallen by 1.6 percentage points, and it is 5.7 points below its level on the same date a year earlier.
Across the readings we hold for Valmayor — 420 data points between July 17, 2018 and July 27, 2026 — the level has ranged from a low of 46.8% (August 20, 2024) to a high of 99.2% (May 13, 2025). On average the reservoir is fullest around April and at its lowest around September.
It is operated by CHT primarily for multiple purposes. It lies within the Tajo basin at 40.551°N, 4.056°W.
Key facts
- Current fill level
- 77.4%
- Water stored
- 96 hm³
- Total capacity
- 124 hm³
- Usable capacity
- 112 hm³
- 7-day change
- ▼ 1.6 pts
- Year-on-year
- ▼ 5.7 pts
- Primary use
- Multipurpose
- River basin
- Tajo
- Operator
- CHT
- Coordinates
- 40.551°N, 4.056°W
- Last updated
- July 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Jul 2026 | 77.4% | 96 |
| 20 Jul 2026 | 79.0% | 98 |
| 14 Jul 2026 | 79.0% | 98 |
| 7 Jul 2026 | 79.0% | 98 |
| 30 Jun 2026 | 79.0% | 98 |
| 23 Jun 2026 | 82.3% | 102 |
| 16 Jun 2026 | 82.3% | 102 |
| 9 Jun 2026 | 82.3% | 102 |
| 2 Jun 2026 | 83.1% | 103 |
| 26 May 2026 | 85.5% | 106 |
| 19 May 2026 | 87.9% | 109 |
| 12 May 2026 | 88.7% | 110 |
Frequently asked questions
What is the current water level of Valmayor?
As of July 27, 2026, Valmayor is at 77.4% of its capacity, holding approximately 96 hm³ of water, according to embalses.net data.
Is Valmayor reservoir full?
No. As of July 27, 2026, Valmayor is within its normal operating range at 77.4% of its capacity, so it is not full.
Is the water level at Valmayor rising or falling?
The level at Valmayor is falling — it dropped 1.6 percentage points over the latest week on record.
How much water can Valmayor hold?
Valmayor has a total capacity of 124 hm³, of which about 112 hm³ is usable storage.
Where is Valmayor reservoir located?
Valmayor is located in Community of Madrid, Spain, within the Tajo basin (coordinates 40.551°N, 4.056°W).
What is Valmayor used for?
Valmayor is used primarily for multiple purposes, and is managed by CHT.