Nanaimo River water temperature
Nanaimo River, Cassidy · River
The current water temperature at Nanaimo River is 16.3 °C (as of September 20, 2026, source: Water Survey of Canada).
A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.
Measurement series & statistics
This measurement series includes 383 data points since September 1, 2026.
Lowest recorded value: 15.9 °C on September 19, 2026 · highest value: 18.6 °C on September 2, 2026.
In September, temperatures have ranged between 15.9 °C and 18.6 °C.
The current value is 1.0 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Nanaimo River right now?
The current water temperature is 16.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Nanaimo River?
Currently 16.3 °C (updated continuously).
How warm is at Nanaimo River in September?
In September, the water temperature recently averaged 17.3 °C.
