Willow C water temperature
Willow C, Willow, Alaska · River
The current water temperature at Willow C is 6.2 °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 158 data points since July 23, 2026.
Lowest recorded value: 4.7 °C on September 1, 2026 · highest value: 13.2 °C on August 16, 2026.
In September, temperatures have ranged between 4.7 °C and 9.9 °C.
The current value is 1.5 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Willow C right now?
The current water temperature is 6.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Willow C?
Currently 6.2 °C (updated continuously).
How warm is at Willow C in September?
In September, the water temperature recently averaged 7.7 °C.
When is the water warmest at Willow C?
Across the measurement record, August is on average the warmest month (9.2 °C).
