The highest day temperature in December 2025 was 48°F. The lowest night temperature was -4°F. The average values for day and night temperatures during December were 28.9°F и 22.3°F respectivly.

The average sea surface temperature in December 2025 for Saugatuck was 42.4°F. The maximum and minimum values were 38.6°F and 46.6°F respectively.

Most of the days in December are gloomy but you can also expect sunny days.

Precipitation total in December for Saugatuck is 0.7 in. It makes december one of the least rainy months of the year.

The average wind speed in December is 12.8 mph. It makes December one of the most windy months of the year for Saugatuck.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Saugatuck in December is 2.6 hours.