Kalavasos

As of September 25, 2026, Kalavasos is filled to 22.1% of its total capacity, holding roughly 4 hm³ of water out of a maximum 17 hm³. At this level the reservoir is low.

Over the most recent week on record the fill level has held broadly steady (-0.2 pts), and it is 9.2 points above its level on the same date a year earlier.

Across the readings we hold for Kalavasos — 954 data points between January 1, 1988 and September 25, 2026 — the level has ranged from a low of 0.1% (August 15, 2008) to a high of 100.0% (March 1, 1989). On average the reservoir is fullest around April and at its lowest around November.

The dam at Kalavasos stands 60 m tall and is a rockfill dam and was completed in 1985. It is operated by Water Development Department (WDD) primarily for water supply. It lies within the Vasilikos Basin basin at 34.806°N, 33.257°E.