Canning

As of September 7, 2026, Canning is filled to 64.3% of its total capacity, holding roughly 58 hm³ of water out of a maximum 90 hm³. At this level the reservoir is within its normal operating range.

Over the most recent week on record the fill level has held broadly steady (+0.3 pts), and it sits close to where it was a year earlier.

Across the readings we hold for Canning — 1065 data points between September 11, 2023 and September 7, 2026 — the level has ranged from a low of 48.2% (May 22, 2024) to a high of 75.6% (November 2, 2025). On average the reservoir is fullest around October and at its lowest around May.

The dam at Canning was completed in 1940. It is operated by BOM primarily for water supply. It lies within the Canning River Basin basin at 32.192°S, 116.153°E.