Can you swim in Lake Michigan in winter? In December water temperature throughout Lake Michigan is not yet warm enough for swimming and does not exceed 68°F. Based on average water temperature observations over the past ten years, the warmest water temperature in Lake Michigan in December was 44.1°F (in Holland), and the coldest 36°F (in Green Bay). To find out the sea temperature today and in the coming days, go to Current sea temperature in Lake Michigan
Lake Michigan cities and resorts with the values of the average water temperature in December in recent years.
For more detailed information about water temperature, surf forecast, weather and time of sunrise and sunset in any specific area of your interest, just click on a city name. For ease of search, all places are also grouped by the first letter of the name.
The map shows Lake Michigan average temperature water in December in some coastal cities
To find out what the water temperature was in Lake Michigan any day over a period of the last ten years, select the month