Current Sea Water Temperature:
+42.2°F
| Maximum Sea Water Temperature in April: | 52.0°F |
| Minimum Sea Water Temperature in April: | 31.8°F |
| Average water temperature in April: | 40.3°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| April 23 | 42.2°F | April 18 | 38.6°F |
| April 22 | 40.8°F | April 17 | 38.8°F |
| April 21 | 41.0°F | April 16 | 38.8°F |
| April 20 | 39.2°F | April 15 | 38.6°F |
| April 19 | 38.8°F | April 14 | 38.6°F |
When is the Warmest Sea for Green Bay?
According to our data for the last three years for Green Bay the highest average sea water temperature was in July, August and September.
Average Water Temperature by Month, °F
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Green Bay was 78.7°F. The maximum and minimum values were 75.6°F and 84.6°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Green Bay was 76.2°F. The maximum and minimum values were 70.0°F and 79.8°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Green Bay was 69.0°F. The maximum and minimum values were 63.2°F and 73.4°F respectively.
USA Resorts:
NAME
F°
| Chicago |  |
+70 |
| Hawaii |  |
+76 |
| Honolulu | |
+76 |
| Houston | |
+82 |
| Las Vegas | |
+68 |
| Los Angeles |  |
+64 |
| Maui | |
+70 |
| Miami | |
+82 |
| Miami Beach | |
+82 |
| New York | |
+76 |
| San Diego | |
+66 |
| San Francisco | |
+58 |
| Sarasota | |
+88 |
| Tampa | |
+86 |
| Washington | |
+82 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Green Bay
Local time: 11:11
23 apr, thursday
| 1200 |  |
78°F | NE 14 mph |
| 1500 | |
88°F | N 16 mph |
| 1800 | |
82°F | NW 14 mph |
| 2100 |  |
68°F | NW 12 mph |
24 apr, friday
| 0000 |  |
62°F | N 11 mph |
| 0300 |  |
60°F | N 12 mph |
| 0600 | |
60°F | N 14 mph |
| 0900 | |
64°F | NE 16 mph |