Measurements:
°C
°F
Green Bay
60°F
SW 9 mph
Feels like: 60°F
Precip: 0%
World Resorts USA Green Bay Weather September Weather in Green Bay

Green Bay Weather: September

Average Day Temperature: 73.9°F
Average Night Temperature: 57.5°F
Sea Water Temperature: 70.3°F
Number of Sunny Days: 14 days
Sunshine Hours: 11.8 - 13.2 hours
Number of Rainy Days: 2 days
Precipitation Totals: 0.8 in

Air Temperature in September, °F

Select Year: 2024 2023 2022

The highest day temperature in September 2024 was 91°F. The lowest night temperature was 44°F. The average values for day and night temperatures during September were 77.0°F и 55.8°F respectivly.

Green Bay Water Sea Temperature in September, °F

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Green Bay was 72.0°F. The maximum and minimum values were 68.8°F and 75.8°F respectively.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in September, in

Precipitation total in September for Green Bay is 0.8 in. It makes september one of the least rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 9.0 mph.

Average Sunny Hours Per Day

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 September is 8.0 hours.

Best Time to Visit Green Bay
The most sunny months:
August 16 days
September 14 days
July 12 days
The most warm months:
August 80.3 °F
July 80.2 °F
June 75.9 °F
Warmest sea temperature:
July 77.4 °F
August 76.2 °F
September 70.3 °F
The most cold months:
January 22.0 °F
February 23.3 °F
December 29.4 °F
The most rainy months:
June 4 days
April 4 days
July 3 days
The most windy months:
April 11 mph
November 11 mph
March 11 mph

Green Bay on the Weather Map

USA Resorts:
NAME
Boston +56
Chicago +64
Hawaii +80
Honolulu +80
Houston +74
Las Vegas +44
Los Angeles +62
Maui +74
Miami +84
New York +62
San Diego +52
San Francisco +56
Sarasota +76
Tampa +78
Washington +62
24 Hours Weather Forecast
Green Bay
Local time: 09:18
05 nov, tuesday
1200 60°F
W
4 mph
1500 64°F
NE
22 mph
1800 64°F
NE
14 mph
2100 54°F
NE
17 mph
06 nov, wednesday
0000 46°F
NE
17 mph
0300 42°F
E
15 mph
0600 44°F
SE
12 mph
0900 46°F
SE
9 mph