South Santiam River at Waterloo, Oregon water temperature
South Santiam River at Waterloo, Oregon · River
The current water temperature at South Santiam River at Waterloo is 14.5 °C (as of September 1, 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 260 data points since July 3, 2026.
Lowest recorded value: 11.5 °C on August 30, 2026 · highest value: 16.5 °C on July 25, 2026.
In September, temperatures have ranged between 14.4 °C and 14.6 °C.
Nearby waters
Frequently asked questions
Can you swim at South Santiam River at Waterloo right now?
The current water temperature is 14.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at South Santiam River at Waterloo?
Currently 14.5 °C (updated continuously).
How warm is at South Santiam River at Waterloo in September?
In September, the water temperature recently averaged 14.5 °C.
When is the water warmest at South Santiam River at Waterloo?
Across the measurement record, September is on average the warmest month (14.5 °C).
