San Antón
Baztan-Bidasoa · Navarre · Cantábrico Oriental
Capacity
5 hm³
Coordinates
43.275°N, 1.773°W
Operator
CHCo
Current fill
100.0%vs 7 days ago
0.0%stable
vs 1 year ago
0.0%year-over-year
7-day trend
→stable
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 June 9, 2026, San Antón is filled to 100.0% of its total capacity, holding roughly 5 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 held broadly steady (+0.0 pts), and it sits close to where it was a year earlier.
Across the readings we hold for San Antón — 418 data points between June 12, 2018 and June 9, 2026 — the level has ranged from a low of 80.0% (September 25, 2018) to a high of 100.0% (June 12, 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
- 100.0%
- Water stored
- 5 hm³
- Total capacity
- 5 hm³
- 7-day change
- No change
- Year-on-year
- No change
- Primary use
- Multipurpose
- River basin
- Cantábrico Oriental
- Operator
- CHCo
- Coordinates
- 43.275°N, 1.773°W
- Last updated
- June 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 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 |
| 5 May 2026 | 100.0% | 5 |
| 28 Apr 2026 | 100.0% | 5 |
| 21 Apr 2026 | 100.0% | 5 |
| 14 Apr 2026 | 100.0% | 5 |
| 7 Apr 2026 | 100.0% | 5 |
| 31 Mar 2026 | 100.0% | 5 |
| 24 Mar 2026 | 100.0% | 5 |
Frequently asked questions
What is the current water level of San Antón?
As of June 9, 2026, San Antón is at 100.0% of its capacity, holding approximately 5 hm³ of water, according to MITECO data.
Is San Antón reservoir full?
San Antón is essentially full, sitting at 100.0% of capacity as of June 9, 2026.
Is the water level at San Antón rising or falling?
The level at San Antón has been broadly stable over the latest week on record (0.0 points).
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.