Lake Michigan water temperature

Lake Michigan, Winthrop Harbor · Lake

The current water temperature at Lake Michigan is 22.4 °C (as of July 30, 2026, source: GLOS).

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

22.4 °C

Measured: July 30, 2026 · continuously updated

💧 Water 22.4° · ☀️ Air 20.1°

Temperature trend of recent weeks

Nearby waters

Lake Michigan, Winthrop Harbor Buoy, IL · 2.0 km away18.3 °C Lake Michigan, Waukegan Buoy, IL · 14.0 km away18.8 °C Lake Michigan, Waukegan Municipal Beach · 14.5 km away18.8 °C Lake Michigan, Salmon Unlimited Wisconsin · 25.9 km away18.2 °C Long Lake at Ben Dock at Long Lake, Illinois · 31.7 km away26.9 °C

More measuring points: Lake Michigan

Michigan City23.6 °C Wilmette22.7 °C Little Traverse Bay22.4 °C Ohio Street Beach22.4 °C Chicago Pier22.0 °C Southern Lake Michigan Spotter21.6 °C

Frequently asked questions

Can you swim at Lake Michigan right now?
The current water temperature is 22.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Lake Michigan?
Currently 22.4 °C (updated continuously).

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