Eume

As of September 7, 2026, Eume is filled to 72.4% of its total capacity, holding roughly 89 hm³ of water out of a maximum 123 hm³. At this level the reservoir is within its normal operating range. Of that total, about 111 hm³ is usable (live) storage.

Over the most recent week on record the fill level has held broadly steady (-0.8 pts), and it is 7.4 points above its level on the same date a year earlier.

Across the readings we hold for Eume — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 47.2% (August 18, 2020) to a high of 100.0% (February 5, 2019). On average the reservoir is fullest around January and at its lowest around September.

It is operated by AGA primarily for multiple purposes. It lies within the Galicia Costa basin at 43.377°N, 7.977°W.