Columbia River, Right Bank, near Cliffs, Washington · River
The current water temperature at Columbia River is 21.4 °C (as of September 3, 2026, source: USGS).
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.
This measurement series includes 133 data points since July 6, 2026.
Lowest recorded value: 19.1 °C on July 6, 2026 · highest value: 22.6 °C on August 21, 2026.
In September, temperatures have ranged between 21.4 °C and 21.8 °C.
The current value is 0.2 °C below the September average of this series.
Can you swim at Columbia River right now?
The current water temperature is 21.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Columbia River?
Currently 21.4 °C (updated continuously).
How warm is at Columbia River in September?
In September, the water temperature recently averaged 21.6 °C.
When is the water warmest at Columbia River?
Across the measurement record, August is on average the warmest month (22.0 °C).