Measurements:
°C
°F
Milwaukee
62°F
SE 6 mph
Feels like: 62°F
Precip: 35%
World Resorts USA Milwaukee Weather

Milwaukee Sea Water Temperature

Current Sea Water Temperature:
+57.6°F
Maximum Sea Water Temperature in June: 67.6°F
Minimum Sea Water Temperature in June: 44.8°F
Average water temperature in June: 58.7°F

Sea Water Temperature for the Last 10 Days:

June 24 57.6°F June 19 54.6°F
June 23 55.6°F June 18 55.8°F
June 22 55.4°F June 17 55.4°F
June 21 55.2°F June 16 54.8°F
June 20 55.8°F June 15 56.0°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 27.6 °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
March 12 mph
February 11 mph

Milwaukee on the Weather Map

USA Resorts:
NAME
Chicago +66
Hawaii +80
Honolulu +80
Houston +82
Las Vegas +94
Los Angeles +66
Maui +74
Miami +80
Miami Beach +82
Myrtle Beach +78
New York +70
San Diego +68
San Francisco +58
Sarasota +84
Tampa +84
24 Hours Weather Forecast
Milwaukee
Local time: 00:27
25 jun, thursday
0300 60°F
E
7 mph
0600 62°F
E
9 mph
0900 66°F
E
9 mph
1200 70°F
E
11 mph
1500 70°F
SE
9 mph
1800 66°F
SW
5 mph
2100 60°F
SW
6 mph
26 jun, friday
0000 58°F
SW
2 mph