Current sea water temperature:
+44.6°F
| Minimum sea water temperature in April: | 51.8°F |
| Maximum sea water temperature in April: | 33.6°F |
| Average sea water temperature in April: | 41.4°F |
| more information | |
14 days
forecast
forecast
| Green Bay |
monthly
weather
weather
| Green Bay |
Sea water temperature for the last 10 days:
| April 28 | 44.6°F | April 23 | 43.0°F |
| April 27 | 44.1°F | April 22 | 41.7°F |
| April 26 | 43.9°F | April 21 | 41.9°F |
| April 25 | 43.0°F | April 20 | 40.3°F |
| April 24 | 42.1°F | April 19 | 39.9°F |
Monthly sea water temperature, °F
When is the warmest sea in Green Bay?
Based on the data about daily sea water temperature for the last three years the warmest sea in Green Bay was noticed in July, August and September.
Monthly Sea Temperatures in Green Bay, °F
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 75.8°F. The highest and lowest sea temperatures during the month were 81.1°F and 73.0°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 73.6°F. The highest and lowest sea temperatures during the month were 76.8°F and 68.0°F.
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.
current
weather
weather
| Green Bay |
weather in
May
May
| Green Bay |
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: 12:39
April 28, tuesday
1500
59°F
E
17 mph
17 mph
1800
57°F
E
12 mph
12 mph
2100
50°F
E
6 mph
6 mph
April 29, wednesday
0000
45°F
SW
6 mph
6 mph
0300
41°F
S
3 mph
3 mph
0600
41°F
S
3 mph
3 mph
0900
45°F
S
6 mph
6 mph
1200
48°F
SE
7 mph
7 mph
