Lake Michigan water temperature

Lake Michigan, South Green Bay, WI · Lake

The current water temperature at Lake Michigan is 24.0 °C (as of August 31, 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.

24.0 °C

Measured: August 31, 2026 · continuously updated

💧 Water 24.0° · ☀️ Air 28.3°

Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 370 data points since July 11, 2026.

Lowest recorded value: 21.2 °C on August 30, 2026 · highest value: 26.5 °C on July 26, 2026.

Nearby waters

Oconto River near Oconto, Wisconsin · 19.3 km away25.4 °C KW-25/24E/34-0183 · 26.3 km away11.4 °C Peshtigo River at Peshtigo, Wisconsin · 28.2 km away23.6 °C Fox River at Oil Tank Depot at Green Bay, Wisconsin · 35.6 km away24.3 °C Lake Michigan, Menominee · 36.1 km away21.1 °C

More measuring points: Lake Michigan

Ohio Street Beach23.8 °C Michigan City23.6 °C Chicago Buoy23.0 °C Southern Lake Michigan Spotter23.0 °C Michigan City Buoy, IN22.8 °C Wilmette Buoy, IL22.8 °C

Frequently asked questions

Can you swim at Lake Michigan right now?
The current water temperature is 24.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Lake Michigan?
Currently 24.0 °C (updated continuously).

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