Doiras

As of September 7, 2026, Doiras is filled to 78.4% of its total capacity, holding roughly 76 hm³ of water out of a maximum 97 hm³. At this level the reservoir is within its normal operating range. Of that total, about 87 hm³ is usable (live) storage.

Over the most recent week on record the fill level has held broadly steady (-1.0 pts), and it is 6.2 points above its level on the same date a year earlier.

Across the readings we hold for Doiras — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 60.8% (July 12, 2022) to a high of 97.9% (January 31, 2023). On average the reservoir is fullest around May and at its lowest around November.

It is operated by CHCoc primarily for multiple purposes. It lies within the Cantábrico Occidental basin at 43.377°N, 6.832°W.