South Branch Au Sable River near Luzerne, Michigan · River
The current water temperature at South Branch Au Sable River near Luzerne is 18.6 °C (as of July 17, 2026, source: USGS).
Can you swim at South Branch Au Sable River near Luzerne right now?
The current water temperature is 18.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at South Branch Au Sable River near Luzerne?
Currently 18.6 °C (updated continuously).
How warm is at South Branch Au Sable River near Luzerne in July?
In July, the water temperature recently averaged 20.0 °C.