Russian River A Hacienda Bridge near Guerneville, California water temperature

Russian River A Hacienda Bridge near Guerneville, California · River

The current water temperature at Russian River A Hacienda Bridge near Guerneville is 20.9 °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.

20.9 °C

Measured: September 1, 2026 · continuously updated

💧 Water 20.9° · ☀️ Air 19.0°

Temperature trend of recent weeks

Russian River A Hacienda Bridge near Guerneville, California — Photo: Lasthib · CC BY-SA 3.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 129 data points since July 3, 2026.

Lowest recorded value: 19.3 °C on August 30, 2026 · highest value: 24.5 °C on August 4, 2026.

Nearby waters

Russian River A Digger Bend near Healdsburg, California · 15.2 km away22.7 °C Dry C below Lambert Branch near Geyserville, California · 16.1 km away14.6 °C 009N009W02F001M · 18.7 km away17.0 °C Russian River A Jimtown, California · 18.7 km away21.3 °C Pacific, Bodega Bay / Doran Beach · 23.6 km away13.2 °C

Frequently asked questions

Can you swim at Russian River A Hacienda Bridge near Guerneville right now?
The current water temperature is 20.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Russian River A Hacienda Bridge near Guerneville?
Currently 20.9 °C (updated continuously).

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