World Resorts USA Green Bay Weather

Green Bay sea water temperature

Current sea water temperature:
+61.2°F
Minimum sea water temperature in October: 69.4°F
Maximum sea water temperature in October: 47.8°F
Average sea water temperature in October: 58.4°F

Sea water temperature for the last 10 days:

October 8 61.2°F October 3 64.6°F
October 7 61.7°F October 2 64.2°F
October 6 62.4°F October 1 64.8°F
October 5 63.5°F September 30 65.3°F
October 4 64.0°F September 29 66.0°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:
2026
2025
2024

The average sea water temperature in July of 2026 was 77.0°F. The highest and lowest sea temperatures during the month were 81.7°F and 73.2°F.

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 75.3°F. The highest and lowest sea temperatures during the month were 78.4°F and 72.0°F.

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 69.9°F. The highest and lowest sea temperatures during the month were 76.8°F and 62.2°F.

Best time for vacation in Green Bay

Sunniest months:
August 15 days
July 14 days
October 13 days
Warmest months:
July 79.0 °F
August 77.8 °F
June 74.2 °F
Warmest sea temp:
July 75.2 °F
August 73.8 °F
September 68.3 °F
Coldest months:
January 23.7 °F
February 26.8 °F
December 30.2 °F
Rainiest months:
June 3 days
April 3 days
September 2 days
Windiest months:
April 11.0 mph
March 10.9 mph
November 10.9 mph

Green Bay on a weather map

Green Bay
+46°F
E 9 mph
Feels like: +43°F
Precip.: 5%
Places in USA:
Name
°F
+63°F
+64°F
+77°F
+73°F
+81°F
+84°F
+68°F
+66°F
+63°F
+75°F
+61°F
+77°F
+73°F
+77°F
+63°F
24 Hours Forecast
Green Bay
Local time: 06:36
October 08, thursday
0900
54°F
E
11 mph
1200
63°F
E
13 mph
1500
64°F
SE
15 mph
1800
57°F
SE
7 mph
2100
52°F
SE
4 mph
October 09, friday
0000
48°F
NE
4 mph
0300
48°F
NE
6 mph
0600
46°F
E
5 mph
Units of measurement: °C / °F