The highest day temperature in July 2026 was 105°F. The lowest night temperature was 53°F. The average values for day and night temperatures during July were 88.7°F и 67.4°F respectivly.

The average sea surface temperature in July 2026 for Green Bay was 80.0°F. The maximum and minimum values were 75.8°F and 85.2°F respectively.

Most of the days in July are sunny but you can also expect cloudy and gloomy days.

Precipitation total in July for Green Bay is 1.2 in. It makes july one of the most rainy months of the year.

The average wind speed in July is 7.6 mph. It makes July the most windless month of the year for Green 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 Green Bay in July is 9.7 hours.