Pajares

As of September 7, 2026, Pajares is filled to 51.4% of its total capacity, holding roughly 18 hm³ of water out of a maximum 35 hm³. At this level the reservoir is within its normal operating range. Of that total, about 32 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 8.6 points below its level on the same date a year earlier.

Across the readings we hold for Pajares — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 22.9% (October 29, 2019) to a high of 100.0% (May 10, 2022). On average the reservoir is fullest around May and at its lowest around November.

It is operated by CHE primarily for multiple purposes. It lies within the Ebro basin at 42.086°N, 2.601°W.