Upper Truckee River water temperature
Upper Truckee River, South Lake Tahoe, California · River
The current water temperature at Upper Truckee River is 12.7 °C (as of September 22, 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.
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Measurement series & statistics
This measurement series includes 414 data points since July 24, 2026.
Lowest recorded value: 8.9 °C on September 5, 2026 · highest value: 24.2 °C on August 9, 2026.
In September, temperatures have ranged between 8.9 °C and 20.2 °C.
The current value is 1.3 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Upper Truckee River right now?
The current water temperature is 12.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Upper Truckee River?
Currently 12.7 °C (updated continuously).
How warm is at Upper Truckee River in September?
In September, the water temperature recently averaged 14.0 °C.
When is the water warmest at Upper Truckee River?
Across the measurement record, July is on average the warmest month (19.0 °C).
