Cardinia

As of September 8, 2026, Cardinia is filled to 63.9% of its total capacity, holding roughly 185 hm³ of water out of a maximum 289 hm³. At this level the reservoir is within its normal operating range. Of that total, about 287 hm³ is usable (live) storage.

Over the most recent week on record the fill level has held broadly steady (+0.3 pts), and it is 2.0 points below its level on the same date a year earlier.

Across the readings we hold for Cardinia — 1057 data points between September 11, 2023 and September 8, 2026 — the level has ranged from a low of 57.4% (June 2, 2026) to a high of 87.3% (January 11, 2024). On average the reservoir is fullest around January and at its lowest around June.

The dam at Cardinia was completed in 1973. It is operated by BOM primarily for water supply. It lies within the Off-stream Basin basin at 37.967°S, 145.403°E.