San Antón
Baztan-Bidasoa · Navarre · Cantábrico Oriental
Capacity
5 hm³
Coordinates
43.275°N, 1.773°W
Operator
CHCo
80.0% full
Current fill
80.0%vs 7 days ago
-20.0%losing
vs 1 year ago
-20.0%year-over-year
7-day trend
↓falling
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 | CHCo |
| Province | Baztan-Bidasoa |
| Autonomous community | Navarre |
| River basin | Cantábrico Oriental |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 43.275, -1.773 · Open in Google Maps
About San Antón
As of July 27, 2026, San Antón 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 fallen by 20.0 percentage points, and it is 20.0 points below its level on the same date a year earlier.
Across the readings we hold for San Antón — 420 data points between July 17, 2018 and July 27, 2026 — the level has ranged from a low of 80.0% (September 25, 2018) to a high of 100.0% (July 17, 2018). On average the reservoir is fullest around January and at its lowest around September.
It is operated by CHCo primarily for multiple purposes. It lies within the Cantábrico Oriental basin at 43.275°N, 1.773°W.
Key facts
- Current fill level
- 80.0%
- Water stored
- 4 hm³
- Total capacity
- 5 hm³
- 7-day change
- ▼ 20.0 pts
- Year-on-year
- ▼ 20.0 pts
- Primary use
- Multipurpose
- River basin
- Cantábrico Oriental
- Operator
- CHCo
- Coordinates
- 43.275°N, 1.773°W
- Last updated
- July 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Jul 2026 | 80.0% | 4 |
| 20 Jul 2026 | 100.0% | 5 |
| 14 Jul 2026 | 100.0% | 5 |
| 7 Jul 2026 | 100.0% | 5 |
| 30 Jun 2026 | 100.0% | 5 |
| 23 Jun 2026 | 100.0% | 5 |
| 16 Jun 2026 | 100.0% | 5 |
| 9 Jun 2026 | 100.0% | 5 |
| 2 Jun 2026 | 100.0% | 5 |
| 26 May 2026 | 100.0% | 5 |
| 19 May 2026 | 100.0% | 5 |
| 12 May 2026 | 100.0% | 5 |
Frequently asked questions
What is the current water level of San Antón?
As of July 27, 2026, San Antón is at 80.0% of its capacity, holding approximately 4 hm³ of water, according to embalses.net data.
Is San Antón reservoir full?
No. As of July 27, 2026, San Antón is high at 80.0% of its capacity, so it is not full.
Is the water level at San Antón rising or falling?
The level at San Antón is falling — it dropped 20.0 percentage points over the latest week on record.
How much water can San Antón hold?
San Antón has a total capacity of 5 hm³.
Where is San Antón reservoir located?
San Antón is located in Baztan-Bidasoa, Navarre, Spain, within the Cantábrico Oriental basin (coordinates 43.275°N, 1.773°W).
What is San Antón used for?
San Antón is used primarily for multiple purposes, and is managed by CHCo.