Arenoso

As of September 7, 2026, Arenoso is filled to 70.1% of its total capacity, holding roughly 117 hm³ of water out of a maximum 167 hm³. At this level the reservoir is within its normal operating range. Of that total, about 150 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 33.6 points above its level on the same date a year earlier.

Across the readings we hold for Arenoso — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 13.2% (October 18, 2022) to a high of 100.0% (February 17, 2026). On average the reservoir is fullest around April and at its lowest around November.

It is operated by CHGu primarily for multiple purposes. It lies within the Guadalquivir basin at 38.001°N, 4.453°W.