Klamath River water temperature
Klamath River, Klamath, California · River
The current water temperature at Klamath River is 19.0 °C (as of September 21, 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.
Measurement series & statistics
This measurement series includes 146 data points since July 23, 2026.
Lowest recorded value: 17.3 °C on September 5, 2026 · highest value: 24.1 °C on August 9, 2026.
In September, temperatures have ranged between 17.3 °C and 22.1 °C.
The current value is 0.1 °C below the September average of this series.
Nearby waters
More measuring points: Klamath River
Frequently asked questions
Can you swim at Klamath River right now?
The current water temperature is 19.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Klamath River?
Currently 19.0 °C (updated continuously).
How warm is at Klamath River in September?
In September, the water temperature recently averaged 19.1 °C.
When is the water warmest at Klamath River?
Across the measurement record, July is on average the warmest month (23.2 °C).
