14.09
mon
mon
Day
66°F
N 7 mph
Precip.
1%
1%
Night
66°F
N 22 mph
Precip.
15%
15%
15.09
tue
tue
Day
68°F
NE 15 mph
Precip.
47%
47%
Night
61°F
SW 9 mph
Precip.
18%
18%
16.09
wed
wed
Day
66°F
SW 7 mph
Precip.
13%
13%
Night
57°F
SW 10 mph
Precip.
28%
28%
17.09
thu
thu
Day
63°F
SW 5 mph
Precip.
15%
15%
Night
59°F
NW 3 mph
Precip.
24%
24%
18.09
fri
fri
Day
66°F
N 2 mph
Precip.
20%
20%
Night
64°F
NW 18 mph
Precip.
78%
78%
19.09
sat
sat
Day
63°F
S 15 mph
Precip.
32%
32%
Night
61°F
SW 14 mph
Precip.
28%
28%
20.09
sun
sun
Day
63°F
W 16 mph
Precip.
40%
40%
Night
59°F
W 17 mph
Precip.
73%
73%
21.09
mon
mon
Day
57°F
W 13 mph
Precip.
88%
88%
Night
55°F
SW 16 mph
Precip.
84%
84%
22.09
tue
tue
Day
64°F
N 9 mph
Precip.
57%
57%
Night
54°F
E 11 mph
Precip.
32%
32%
23.09
wed
wed
Day
57°F
E 15 mph
Precip.
17%
17%
Night
52°F
E 16 mph
Precip.
17%
17%
24.09
thu
thu
Day
50°F
E 12 mph
Precip.
38%
38%
Night
46°F
SE 11 mph
Precip.
54%
54%
25.09
fri
fri
Day
55°F
S 16 mph
Precip.
29%
29%
Night
52°F
S 18 mph
Precip.
24%
24%
26.09
sat
sat
Day
57°F
S 21 mph
Precip.
21%
21%
Night
50°F
NE 16 mph
Precip.
10%
10%
sea water
temperature
temperature
| Green Bay |
monthly
weather
weather
| Green Bay |
current
weather
weather
| Green Bay |
7 days
forecast
forecast
| Green Bay |
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 67.1°F. The highest and lowest sea temperatures during the month were 71.1°F and 61.9°F.
Air temperature in Green Bay, °F
Precipitation total in Green Bay, in.
* Charts above show average data for the last 3 years.
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: 02:13
September 14, monday
0300
50°F
S
4 mph
4 mph
0600
48°F
SW
2 mph
2 mph
0900
55°F
W
4 mph
4 mph
1200
66°F
N
7 mph
7 mph
1500
68°F
NW
14 mph
14 mph
1800
63°F
N
16 mph
16 mph
2100
63°F
N
14 mph
14 mph
September 15, tuesday
0000
66°F
N
22 mph
22 mph
