South Santiam River water temperature
South Santiam River, Cascadia, Oregon · River
The current water temperature at South Santiam River is 13.2 °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 300 data points since July 23, 2026.
Lowest recorded value: 13.2 °C on September 21, 2026 · highest value: 22.8 °C on July 24, 2026.
In September, temperatures have ranged between 13.2 °C and 18.2 °C.
The current value is 1.6 °C below the September average of this series.
Nearby waters
More measuring points: South Santiam River
Frequently asked questions
Can you swim at South Santiam River right now?
The current water temperature is 13.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at South Santiam River?
Currently 13.2 °C (updated continuously).
How warm is at South Santiam River in September?
In September, the water temperature recently averaged 14.8 °C.
When is the water warmest at South Santiam River?
Across the measurement record, July is on average the warmest month (19.5 °C).
