Arlanzón
Burgos · Castile and León · Duero
Capacity
22 hm³
Coordinates
42.258°N, 3.340°W
Operator
CHD
Current fill
86.4%vs 7 days ago
0.0%stable
vs 1 year ago
-4.5%year-over-year
7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 22 hm³ |
| Usable capacity | 19.8 hm³ |
| Primary use | Multi-purpose |
| Operator | CHD |
| Province | Burgos |
| Autonomous community | Castile and León |
| River basin | Duero |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.258, -3.340 · Open in Google Maps
About Arlanzón
As of June 9, 2026, Arlanzón is filled to 86.4% of its total capacity, holding roughly 19 hm³ of water out of a maximum 22 hm³. At this level the reservoir is high. Of that total, about 20 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 4.5 points below its level on the same date a year earlier.
Across the readings we hold for Arlanzón — 418 data points between June 12, 2018 and June 9, 2026 — the level has ranged from a low of 40.9% (November 4, 2025) to a high of 100.0% (June 12, 2018). On average the reservoir is fullest around May and at its lowest around October.
It is operated by CHD primarily for multiple purposes. It lies within the Duero basin at 42.258°N, 3.340°W.
Key facts
- Current fill level
- 86.4%
- Water stored
- 19 hm³
- Total capacity
- 22 hm³
- Usable capacity
- 20 hm³
- 7-day change
- No change
- Year-on-year
- ▼ 4.5 pts
- Primary use
- Multipurpose
- River basin
- Duero
- Operator
- CHD
- Coordinates
- 42.258°N, 3.340°W
- Last updated
- June 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Jun 2026 | 86.4% | 19 |
| 2 Jun 2026 | 86.4% | 19 |
| 26 May 2026 | 86.4% | 19 |
| 19 May 2026 | 86.4% | 19 |
| 12 May 2026 | 81.8% | 18 |
| 5 May 2026 | 77.3% | 17 |
| 28 Apr 2026 | 72.7% | 16 |
| 21 Apr 2026 | 72.7% | 16 |
| 14 Apr 2026 | 77.3% | 17 |
| 7 Apr 2026 | 72.7% | 16 |
| 31 Mar 2026 | 77.3% | 17 |
| 24 Mar 2026 | 77.3% | 17 |
Frequently asked questions
What is the current water level of Arlanzón?
As of June 9, 2026, Arlanzón is at 86.4% of its capacity, holding approximately 19 hm³ of water, according to MITECO data.
Is Arlanzón reservoir full?
No. As of June 9, 2026, Arlanzón is high at 86.4% of its capacity, so it is not full.
Is the water level at Arlanzón rising or falling?
The level at Arlanzón has been broadly stable over the latest week on record (0.0 points).
How much water can Arlanzón hold?
Arlanzón has a total capacity of 22 hm³, of which about 20 hm³ is usable storage.
Where is Arlanzón reservoir located?
Arlanzón is located in Burgos, Castile and León, Spain, within the Duero basin (coordinates 42.258°N, 3.340°W).
What is Arlanzón used for?
Arlanzón is used primarily for multiple purposes, and is managed by CHD.