Measurements:
°C
°F
Milwaukee
26°F
SE 14 mph
Feels like: 16°F
Precip: 0%
World Resorts USA Milwaukee Weather

Milwaukee Sea Water Temperature

Current Sea Water Temperature:
+34.4°F
Maximum Sea Water Temperature in February: 35.8°F
Minimum Sea Water Temperature in February: 30.8°F
Average water temperature in February: 33.5°F

Sea Water Temperature for the Last 10 Days:

February 21 34.4°F February 16 33.6°F
February 20 35.0°F February 15 30.8°F
February 19 35.2°F February 14 30.8°F
February 18 34.0°F February 13 31.2°F
February 17 34.0°F February 12 31.0°F

When is the Warmest Sea for Milwaukee?

According to our data for the last three years for Milwaukee the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Milwaukee was 73.5°F. The maximum and minimum values were 70.4°F and 75.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Milwaukee was 70.7°F. The maximum and minimum values were 66.2°F and 78.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Milwaukee was 68.8°F. The maximum and minimum values were 65.0°F and 72.2°F respectively.

Best Time to Visit Milwaukee
The most sunny months:
August 15 days
September 14 days
October 13 days
The most warm months:
August 78.6 °F
July 78.2 °F
September 72.7 °F
Warmest sea temperature:
August 71.9 °F
July 69.4 °F
September 68.9 °F
The most cold months:
January 24.3 °F
February 26.6 °F
December 31.7 °F
The most rainy months:
April 3 days
June 3 days
May 2 days
The most windy months:
November 12 mph
February 12 mph
March 12 mph

Milwaukee on the Weather Map

USA Resorts:
NAME
Chicago +28
Hawaii +70
Honolulu +70
Houston +74
Las Vegas +34
Los Angeles +40
Maui +66
Miami +74
Miami Beach +78
New York +38
San Diego +44
San Francisco +42
Sarasota +68
Tampa +70
Washington +38
24 Hours Weather Forecast
Milwaukee
Local time: 08:43
21 feb, saturday
0900 26°F
SE
14 mph
1200 28°F
SE
11 mph
1500 30°F
SE
12 mph
1800 30°F
SE
13 mph
2100 28°F
SE
14 mph
22 feb, sunday
0000 26°F
SE
14 mph
0300 24°F
SE
16 mph
0600 24°F
SE
16 mph