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Lake Superior water temperature

Lake Superior, Whitefish Bay · Lake

The current water temperature at Lake Superior is 19.3 °C (as of September 3, 2026, source: NOAA NDBC).

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

19.3 °C
Measured: September 3, 2026 · continuously updated
💧 Water 19.3° · ☀️ Air 18.6°

Nearby waters

Lake Superior, S.W. Pier, St. Marys River · 30.7 km away19.7 °CLake Superior, Little Rapids · 36.4 km away16.8 °CLake Huron, West Neebish Island · 51.7 km away17.8 °CLake Huron, Rock Cut · 54.2 km away19.9 °CLake Michigan, Mackinac Straits West · 80.0 km away20.6 °C

More measuring points: Lake Superior

Ontonagon, MI20.5 °CWisconsin Point20.4 °CBreakers Beach19.8 °CNorth Entry Buoy, North Keweenaw Peninsu19.8 °CS.W. Pier, St. Marys River19.7 °CSouth Entry Buoy, South Keweenaw Peninsu19.3 °C

Frequently asked questions

Can you swim at Lake Superior right now?
The current water temperature is 19.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Lake Superior?
Currently 19.3 °C (updated continuously).

Open in the BrrChecker app

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