World Resorts USA Milwaukee Weather

Milwaukee sea water temperature

Current sea water temperature:
+43.2°F
Minimum sea water temperature in April: 46.0°F
Maximum sea water temperature in April: 34.7°F
Average sea water temperature in April: 40.1°F

Sea water temperature for the last 10 days:

April 27 43.2°F April 22 41.9°F
April 26 44.8°F April 21 41.9°F
April 25 45.9°F April 20 42.1°F
April 24 44.8°F April 19 42.6°F
April 23 43.9°F April 18 40.1°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
+52°F
NW 19 mph
Feels like: +46°F
Precip.: 100%
Places in USA:
Name
°F
+68°F
+73°F
+73°F
+61°F
+61°F
+84°F
+81°F
+68°F
+61°F
+63°F
+54°F
+90°F
+88°F
+82°F
+61°F
24 Hours Forecast
Milwaukee
Local time: 11:44
April 27, monday
1200
52°F
NW
19 mph
1500
54°F
NW
19 mph
1800
57°F
N
19 mph
2100
59°F
N
22 mph
April 28, tuesday
0000
59°F
NE
20 mph
0300
55°F
NE
16 mph
0600
52°F
E
15 mph
0900
48°F
E
17 mph
Units of measurement: °C / °F