Arenos
Castelló / Castellón · Valencian Community · Júcar
Capacity
137 hm³
Coordinates
40.096°N, 0.565°W
Operator
CHJ
Current fill
46.0%vs 7 days ago
-0.7%losing
vs 1 year ago
+1.5%year-over-year
7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 137 hm³ |
| Usable capacity | 123.3 hm³ |
| Primary use | Multi-purpose |
| Operator | CHJ |
| Province | Castelló / Castellón |
| Autonomous community | Valencian Community |
| River basin | Júcar |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 40.096, -0.565 · Open in Google Maps
About Arenos
As of June 9, 2026, Arenos is filled to 46.0% of its total capacity, holding roughly 63 hm³ of water out of a maximum 137 hm³. At this level the reservoir is within its normal operating range. Of that total, about 123 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (-0.7 pts), and it is 1.5 points above its level on the same date a year earlier.
Across the readings we hold for Arenos — 418 data points between June 12, 2018 and June 9, 2026 — the level has ranged from a low of 8.0% (October 15, 2024) to a high of 70.8% (April 23, 2019). On average the reservoir is fullest around April and at its lowest around October.
It is operated by CHJ primarily for multiple purposes. It lies within the Júcar basin at 40.096°N, 0.565°W.
Key facts
- Current fill level
- 46.0%
- Water stored
- 63 hm³
- Total capacity
- 137 hm³
- Usable capacity
- 123 hm³
- 7-day change
- ▼ 0.7 pts
- Year-on-year
- ▲ 1.5 pts
- Primary use
- Multipurpose
- River basin
- Júcar
- Operator
- CHJ
- Coordinates
- 40.096°N, 0.565°W
- Last updated
- June 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Jun 2026 | 46.0% | 63 |
| 2 Jun 2026 | 46.7% | 64 |
| 26 May 2026 | 47.4% | 65 |
| 19 May 2026 | 47.4% | 65 |
| 12 May 2026 | 47.4% | 65 |
| 5 May 2026 | 47.4% | 65 |
| 28 Apr 2026 | 46.7% | 64 |
| 21 Apr 2026 | 46.7% | 64 |
| 14 Apr 2026 | 46.0% | 63 |
| 7 Apr 2026 | 46.7% | 64 |
| 31 Mar 2026 | 46.7% | 64 |
| 24 Mar 2026 | 46.7% | 64 |
Frequently asked questions
What is the current water level of Arenos?
As of June 9, 2026, Arenos is at 46.0% of its capacity, holding approximately 63 hm³ of water, according to MITECO data.
Is Arenos reservoir full?
No. As of June 9, 2026, Arenos is within its normal operating range at 46.0% of its capacity, so it is not full.
Is the water level at Arenos rising or falling?
The level at Arenos has been broadly stable over the latest week on record (-0.7 points).
How much water can Arenos hold?
Arenos has a total capacity of 137 hm³, of which about 123 hm³ is usable storage.
Where is Arenos reservoir located?
Arenos is located in Castelló / Castellón, Valencian Community, Spain, within the Júcar basin (coordinates 40.096°N, 0.565°W).
What is Arenos used for?
Arenos is used primarily for multiple purposes, and is managed by CHJ.