South Branch Au Sable River near Luzerne, Michigan water temperature
South Branch Au Sable River near Luzerne, Michigan · River
The current water temperature at South Branch Au Sable River near Luzerne is 13.4 °C (as of September 20, 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.
Measurement series & statistics
This measurement series includes 281 data points since July 22, 2026.
Lowest recorded value: 13.1 °C on September 19, 2026 · highest value: 21.9 °C on August 7, 2026.
In September, temperatures have ranged between 13.1 °C and 20.6 °C.
The current value is 3.5 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at South Branch Au Sable River near Luzerne right now?
The current water temperature is 13.4 °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 13.4 °C (updated continuously).
How warm is at South Branch Au Sable River near Luzerne in September?
In September, the water temperature recently averaged 16.9 °C.
When is the water warmest at South Branch Au Sable River near Luzerne?
Across the measurement record, July is on average the warmest month (18.7 °C).
