Lake Superior water temperature
Lake Superior, Duluth-Offshore Buoy(LLO2) · Lake
The current water temperature at Lake Superior is 18.8 °C (as of July 30, 2026, source: GLOS).
18.8 °C
Frequently asked questions
Can you swim at Lake Superior right now?
The current water temperature is 18.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Lake Superior?
Currently 18.8 °C (updated continuously).
