Lake Superior water temperature

Lake Superior, Blatnik Bridge · Sea/Coast

The current water temperature at Lake Superior is 13.6 °C (as of October 14, 2026, source: NOAA NERRS SWMP).

The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.

13.6 °C

Measured: October 14, 2026 · continuously updated

💧 Water 13.6° · ☀️ Air 11.9°

Nearby waters

Lake Superior, Duluth · 3.1 km away14.4 °C Lake Superior, Wisconsin Point · 8.6 km away13.3 °C Lake Superior, Pokegama Bay · 8.9 km away17.6 °C Lake Superior, Western Lake Superior · 12.2 km away12.5 °C Lake Superior, Oliver Bridge · 12.8 km away17.7 °C

More measuring points: Lake Superior

Duluth-Offshore Buoy(LLO2)18.8 °C North Entry Buoy, North Keweenaw Peninsula18.6 °C Oliver Bridge17.7 °C Pokegama Bay17.6 °C Duluth14.4 °C S.W. Pier, St. Marys River14.3 °C

Frequently asked questions

Can you swim at Lake Superior right now?
The current water temperature is 13.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Lake Superior?
Currently 13.6 °C (updated continuously).

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