The highest day temperature in April 2025 was 55°F. The lowest night temperature was 20°F. The average values for day and night temperatures during April were 43.4°F и 35.2°F respectivly.

The average sea surface temperature in April 2025 for Sturgeon Bay was 37.4°F. The maximum and minimum values were 30.8°F and 44.2°F respectively.

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

Precipitation total in April for Sturgeon Bay is 1.2 in. It makes april one of the most rainy months of the year.

The average wind speed in April is 10.6 mph. It makes April one of the most windy months of the year for Sturgeon Bay.

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 April is 5.5 hours.