Upper Truckee River at South Lake Tahoe, California water temperature
Upper Truckee River at South Lake Tahoe, California · River
The current water temperature at Upper Truckee River at South Lake Tahoe is 19.6 °C (as of September 9, 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 422 data points since July 23, 2026.
Lowest recorded value: 8.9 °C on September 5, 2026 · highest value: 24.2 °C on July 23, 2026.
In September, temperatures have ranged between 8.9 °C and 20.2 °C.
The current value is 5.5 °C above the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Upper Truckee River at South Lake Tahoe right now?
The current water temperature is 19.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Upper Truckee River at South Lake Tahoe?
Currently 19.6 °C (updated continuously).
How warm is at Upper Truckee River at South Lake Tahoe in September?
In September, the water temperature recently averaged 14.1 °C.
When is the water warmest at Upper Truckee River at South Lake Tahoe?
Across the measurement record, July is on average the warmest month (19.2 °C).
