Lake Michigan Water Temperature

(Today) 2021

6.8°C / 44.2°F

Current weather

7°C / 45°F
(overcast clouds)

Partly cloudy

Wind

22 mph

Humidity

89%


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.

Monthly average water temp

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.