Negratín

As of September 7, 2026, Negratín is filled to 59.9% of its total capacity, holding roughly 342 hm³ of water out of a maximum 571 hm³. At this level the reservoir is within its normal operating range. Of that total, about 514 hm³ is usable (live) storage.

Over the most recent week on record the fill level has held broadly steady (-0.5 pts), and it is 33.5 points above its level on the same date a year earlier.

Across the readings we hold for Negratín — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 17.7% (October 4, 2022) to a high of 65.3% (May 19, 2026). On average the reservoir is fullest around June and at its lowest around November.

It is operated by CHGu primarily for multiple purposes. It lies within the Guadalquivir basin at 37.572°N, 2.896°W.