Russian River near Hopland, California water temperature
Russian River near Hopland, California · River
The current water temperature at Russian River near Hopland is 14.0 °C (as of September 2, 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 176 data points since July 5, 2026.
Lowest recorded value: 13.3 °C on August 29, 2026 · highest value: 19.0 °C on July 13, 2026.
In September, temperatures have ranged between 14.0 °C and 15.9 °C.
The current value is 0.9 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Russian River near Hopland right now?
The current water temperature is 14.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Russian River near Hopland?
Currently 14.0 °C (updated continuously).
How warm is at Russian River near Hopland in September?
In September, the water temperature recently averaged 14.9 °C.
When is the water warmest at Russian River near Hopland?
Across the measurement record, July is on average the warmest month (16.3 °C).
