World Resorts USA Green Bay Weather

Green Bay sea water temperature

Current sea water temperature:
+78.1°F
Minimum sea water temperature in July: 81.7°F
Maximum sea water temperature in July: 68.9°F
Average sea water temperature in July: 75.2°F

Sea water temperature for the last 10 days:

July 21 78.1°F July 16 81.5°F
July 20 78.8°F July 15 81.7°F
July 19 78.8°F July 14 80.1°F
July 18 81.1°F July 13 77.9°F
July 17 79.7°F July 12 78.8°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 June.

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 77.8°F. The highest and lowest sea temperatures during the month were 81.7°F and 73.8°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 June, °F

Show year:
2026
2025
2024

The average sea water temperature in June of 2026 was 69.7°F. The highest and lowest sea temperatures during the month were 73.0°F and 65.5°F.

Best time for vacation in Green Bay

Sunniest months:
August 14 days
October 13 days
September 13 days
Warmest months:
July 78.0 °F
August 77.5 °F
June 74.2 °F
Warmest sea temp:
July 75.3 °F
August 73.5 °F
June 68.2 °F
Coldest months:
January 23.7 °F
February 26.8 °F
December 30.2 °F
Rainiest months:
June 3 days
April 3 days
July 2 days
Windiest months:
April 11.0 mph
March 10.9 mph
November 10.9 mph

Green Bay on a weather map

Green Bay
+73°F
SE 16 mph
Feels like: +77°F
Precip.: 7%
Places in USA:
Name
°F
+73°F
+81°F
+77°F
+86°F
+66°F
+86°F
+72°F
+84°F
+75°F
+68°F
+55°F
+68°F
+84°F
+79°F
+75°F
24 Hours Forecast
Green Bay
Local time: 08:43
July 21, tuesday
0900
73°F
SE
16 mph
1200
79°F
SE
15 mph
1500
79°F
SE
16 mph
1800
72°F
S
17 mph
2100
61°F
S
19 mph
July 22, wednesday
0000
57°F
S
12 mph
0300
54°F
SE
13 mph
0600
48°F
SE
9 mph
Units of measurement: °C / °F