Salmon River at Gustavus, Alaska water temperature
Salmon River at Gustavus, Alaska · River
The current water temperature at Salmon River at Gustavus is 10.4 °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.
Measurement series & statistics
This measurement series includes 174 data points since July 22, 2026.
Lowest recorded value: 7.8 °C on September 4, 2026 · highest value: 12.3 °C on August 22, 2026.
In September, temperatures have ranged between 7.8 °C and 11.5 °C.
The current value is 1.1 °C above the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Salmon River at Gustavus right now?
The current water temperature is 10.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Salmon River at Gustavus?
Currently 10.4 °C (updated continuously).
How warm is at Salmon River at Gustavus in September?
In September, the water temperature recently averaged 9.3 °C.
When is the water warmest at Salmon River at Gustavus?
Across the measurement record, August is on average the warmest month (10.1 °C).
