Williston Lake water temperature
Williston Lake, Lost Cabin Creek · Lake
The current water temperature at Williston Lake is 13.9 °C (as of September 20, 2026, source: Water Survey of Canada).
Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.
Measurement series & statistics
This measurement series includes 386 data points since September 1, 2026.
Lowest recorded value: 8.4 °C on September 11, 2026 · highest value: 17.4 °C on September 1, 2026.
In September, temperatures have ranged between 8.4 °C and 17.4 °C.
The current value is 0.8 °C above the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Williston Lake right now?
The current water temperature is 13.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Williston Lake?
Currently 13.9 °C (updated continuously).
How warm is at Williston Lake in September?
In September, the water temperature recently averaged 13.1 °C.
