South Santiam River at Lebanon, Oregon · River
The current water temperature at South Santiam River at Lebanon is 13.3 °C (as of September 20, 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 148 data points since July 23, 2026.
Lowest recorded value: 11.6 °C on September 3, 2026 · highest value: 16.3 °C on July 23, 2026.
In September, temperatures have ranged between 11.6 °C and 15.1 °C.
Can you swim at South Santiam River at Lebanon right now?
The current water temperature is 13.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at South Santiam River at Lebanon?
Currently 13.3 °C (updated continuously).
How warm is at South Santiam River at Lebanon in September?
In September, the water temperature recently averaged 13.3 °C.
When is the water warmest at South Santiam River at Lebanon?
Across the measurement record, July is on average the warmest month (15.9 °C).