The highest day temperature in January 2026 was 42°F. The lowest night temperature was -23°F. The average values for day and night temperatures during January were 14.9°F и 9.6°F respectivly.

The average sea surface temperature in January 2026 for Sturgeon Bay was 31.8°F. The maximum and minimum values were 30.6°F and 32.6°F respectively.

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

Precipitation total in January for Sturgeon Bay is 0.4 in. It makes january one of the least rainy months of the year.

The average wind speed in January is 10.4 mph.

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 Sturgeon Bay in January is 3.5 hours.