Lake Michigan Water Temperature

(Today) 2024

14.6°C / 58.3°F

The water will feel medium. The water will feel a bit chilly in just bathers / swimming costume. If you plan on wearing a wetsuit 4/3mm should be thick enough.

Current weather

18°C / 65°F
(clear sky)
Partly cloudy
Wind
7 mph
Humidity
85%

The measurements for the water temperature in Lake Michigan, Michigan are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

Water temp by month

Monthly average max / min water temperatures

The graph below shows the range of monthly Lake Michigan water temperature derived from many years of historical sea surface temperature data.

Lake Michigan average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Lake Michigan
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 2.4 1.4 1.2 2.1 2.1 4.9 14.9 19.4 16.1 9 4.6 1.7
Max °C 4.5 4 4.2 4.8 7.4 17.8 24.3 23.5 22.6 16.3 11.7 7.6
Min °F 37.1 35.6 35.4 36.8 37.9 45.9 62.6 68.5 63.5 51.1 43.1 37.4
Max °F 39.2 38.2 38.4 39.5 43.2 58.8 72 72.6 70 58.4 50.2 43.3

The warmest water temperature is in August with an average around 70.5°F / 21.4°C. The coldest month is February with an average water temperature of 36.9°F / 2.7°C.