Iliamna River water temperature
Iliamna River, Pedro Bay, Alaska · River
The current water temperature at Iliamna River is 7.5 °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 161 data points since July 23, 2026.
Lowest recorded value: 6.4 °C on September 1, 2026 · highest value: 11.2 °C on August 11, 2026.
In September, temperatures have ranged between 6.4 °C and 10.2 °C.
The current value is 1.0 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Iliamna River right now?
The current water temperature is 7.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Iliamna River?
Currently 7.5 °C (updated continuously).
How warm is at Iliamna River in September?
In September, the water temperature recently averaged 8.5 °C.
When is the water warmest at Iliamna River?
Across the measurement record, August is on average the warmest month (8.7 °C).
