Umatilla River water temperature
Umatilla River, Umatilla, Oregon · River
The current water temperature at Umatilla River is 17.0 °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 231 data points since July 23, 2026.
Lowest recorded value: 16.4 °C on September 4, 2026 · highest value: 27.0 °C on August 14, 2026.
In September, temperatures have ranged between 16.4 °C and 22.5 °C.
The current value is 1.5 °C below the September average of this series.
Nearby waters
More measuring points: Umatilla River
Frequently asked questions
Can you swim at Umatilla River right now?
The current water temperature is 17.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Umatilla River?
Currently 17.0 °C (updated continuously).
How warm is at Umatilla River in September?
In September, the water temperature recently averaged 18.5 °C.
When is the water warmest at Umatilla River?
Across the measurement record, July is on average the warmest month (22.6 °C).
