Weather in Green Bay: May
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Average day temperature: | 62.1°F |
| Average night temperature: | 48.3°F | |
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Sea water temperature: | 55.1°F |
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Number of sunny days: | 10 days |
| Day length: | 14.2 - 15.3 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.1 in. | |
| more information | ||
14 days
forecast
forecast
| Green Bay |
sea water
temperature
temperature
| Green Bay |
Air temperature in May, °F
Show year:
2025
2024
2023
The highest day temperature during May of 2025 was 79°F. At the same time the lowest night temperature was 33°F. Daily and nightly averages during May were 62.9°F and 45.2°F.
Sea water temperature in Green Bay in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 57.9°F. The highest and lowest sea temperatures during the month were 63.1°F and 50.7°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Green Bay in May is 1.1 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 9.0 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.7.
Best time for vacation in Green Bay
Green Bay on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Green Bay
Local time: 05:45
January 15, thursday
0600
14°F
S
10 mph
10 mph
0900
14°F
SE
8 mph
8 mph
1200
18°F
E
5 mph
5 mph
1500
21°F
NE
8 mph
8 mph
1800
21°F
NE
9 mph
9 mph
2100
21°F
NE
12 mph
12 mph
January 16, friday
0000
19°F
N
11 mph
11 mph
0300
21°F
NE
11 mph
11 mph
