World Resorts USA Milwaukee Weather

Milwaukee sea water temperature

Current sea water temperature:
+35.2°F
Minimum sea water temperature in March: 39.4°F
Maximum sea water temperature in March: 33.3°F
Average sea water temperature in March: 36.1°F

Sea water temperature for the last 10 days:

March 17 35.2°F March 12 35.8°F
March 16 35.4°F March 11 35.6°F
March 15 35.6°F March 10 35.8°F
March 14 34.9°F March 9 34.7°F
March 13 35.8°F March 8 33.3°F

When is the warmest sea in Milwaukee?

Based on the data about daily sea water temperature for the last three years the warmest sea in Milwaukee was noticed in August, July and September.

Monthly Sea Temperatures in Milwaukee, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 71.2°F. The highest and lowest sea temperatures during the month were 73.2°F and 68.4°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 68.7°F. The highest and lowest sea temperatures during the month were 75.4°F and 64.6°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 66.9°F. The highest and lowest sea temperatures during the month were 70.0°F and 63.5°F.

Best time for vacation in Milwaukee

Sunniest months:
August 15 days
September 14 days
October 13 days
Warmest months:
August 75.7 °F
July 75.4 °F
September 70.4 °F
Warmest sea temp:
August 69.7 °F
July 67.4 °F
September 67.0 °F
Coldest months:
January 26.9 °F
February 29.9 °F
December 33.6 °F
Rainiest months:
April 3 days
June 3 days
May 2 days
Windiest months:
November 12.3 mph
March 11.9 mph
February 11.8 mph

Milwaukee on a weather map

Milwaukee
+23°F
E 9 mph
Feels like: +14°F
Precip.: 0%
Places in USA:
Name
°F
+36°F
+70°F
+70°F
+88°F
+95°F
+59°F
+61°F
+68°F
+36°F
+90°F
+81°F
+64°F
+61°F
+64°F
+27°F
24 Hours Forecast
Milwaukee
Local time: 15:26
March 17, tuesday
1800
23°F
NE
9 mph
2100
19°F
NE
11 mph
March 18, wednesday
0000
21°F
N
12 mph
0300
23°F
N
12 mph
0600
25°F
N
12 mph
0900
27°F
N
13 mph
1200
34°F
NE
11 mph
1500
39°F
NE
6 mph
Units of measurement: °C / °F