Lake Superior water temperature

Lake Superior, Breakers Beach · Lake

The current water temperature at Lake Superior is 19.9 °C (as of September 2, 2026, source: NOAA NDBC · Proxy).

Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.

19.9 °C

Measured: September 2, 2026 · continuously updated

💧 Water 19.9° · ☀️ Air 19.4° · high today 20.6°

Nearby waters

Lake Superior, North Entry Buoy, North Keweenaw Peninsu · 1.2 km away19.9 °C Lake Superior, North Entry Buoy, North Keweenaw Peninsula · 5.3 km away18.6 °C Pilgrim River at Paradise Rd near Dodgeville, Michigan · 17.3 km away17.8 °C Lake Superior, South Entry Buoy, South Keweenaw Peninsu · 34.1 km away19.1 °C Sturgeon River near Alston, Michigan · 55.9 km away18.7 °C

More measuring points: Lake Superior

Western Lake Superior23.1 °C Ontonagon, MI20.3 °C Wisconsin Point20.0 °C North Entry Buoy, North Keweenaw Peninsu19.9 °C S.W. Pier, St. Marys River19.6 °C South Entry Buoy, South Keweenaw Peninsu19.1 °C

Frequently asked questions

Can you swim at Lake Superior right now?
The current water temperature is 19.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Lake Superior?
Currently 19.9 °C (updated continuously).

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