Trinity River above Nf Trinity River near Helena, California · River
The current water temperature at Trinity River above Nf Trinity River near Helena is 17.8 °C (as of July 26, 2026, source: USGS).
Can you swim at Trinity River above Nf Trinity River near Helena right now?
The current water temperature is 17.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Trinity River above Nf Trinity River near Helena?
Currently 17.8 °C (updated continuously).