Sotonera

As of September 7, 2026, Sotonera is filled to 31.8% of its total capacity, holding roughly 60 hm³ of water out of a maximum 189 hm³. At this level the reservoir is low.

Over the most recent week on record the fill level has held broadly steady (-1.0 pts), and it is 4.7 points below its level on the same date a year earlier.

Across the readings we hold for Sotonera — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 15.3% (October 15, 2019) to a high of 97.4% (May 19, 2026). On average the reservoir is fullest around March and at its lowest around October.

It is operated by Ebro. It lies within the Ebro basin at 0.000°N, 0.000°E.