Tuolumne River A Grand Cyn of Tuolumne above Hetch Hetchy · River
The current water temperature at Tuolumne River A Grand Cyn of Tuolumne above Hetch Hetchy is 18.7 °C (as of July 17, 2026, source: USGS).
Can you swim at Tuolumne River A Grand Cyn of Tuolumne above Hetch Hetchy right now?
The current water temperature is 18.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Tuolumne River A Grand Cyn of Tuolumne above Hetch Hetchy?
Currently 18.7 °C (updated continuously).
How warm is at Tuolumne River A Grand Cyn of Tuolumne above Hetch Hetchy in July?
In July, the water temperature recently averaged 18.7 °C.