Tranco de Beas

As of September 7, 2026, Tranco de Beas is filled to 75.1% of its total capacity, holding roughly 380 hm³ of water out of a maximum 506 hm³. At this level the reservoir is within its normal operating range. Of that total, about 455 hm³ is usable (live) storage.

Over the most recent week on record the fill level has held broadly steady (-1.4 pts), and it is 49.0 points above its level on the same date a year earlier.

Across the readings we hold for Tranco de Beas — 419 data points between September 4, 2018 and September 7, 2026 — the level has ranged from a low of 19.6% (October 4, 2022) to a high of 92.9% (May 12, 2026). On average the reservoir is fullest around May and at its lowest around November.

It is operated by CHGu primarily for multiple purposes. It lies within the Guadalquivir basin at 38.147°N, 2.777°W.