Current sea water temperature:
+38.5°F
| Minimum sea water temperature in January: | 41.9°F |
| Maximum sea water temperature in January: | 33.3°F |
| Average sea water temperature in January: | 37.6°F |
| more information | |
14 days
forecast
forecast
| Milwaukee |
monthly
weather
weather
| Milwaukee |
Sea water temperature for the last 10 days:
| January 3 | 38.5°F | December 29 | 38.3°F |
| January 2 | 38.8°F | December 28 | 38.1°F |
| January 1 | 39.7°F | December 27 | 38.8°F |
| December 31 | 39.6°F | December 26 | 38.3°F |
| December 30 | 38.3°F | December 25 | 38.8°F |
Monthly sea water temperature, °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.
current
weather
weather
| Milwaukee |
weather in
January
January
| Milwaukee |
Best time for vacation in Milwaukee
Milwaukee on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Milwaukee
Local time: 06:10
January 03, saturday
0900
18°F
SE
7 mph
7 mph
1200
23°F
SE
6 mph
6 mph
1500
25°F
SE
9 mph
9 mph
1800
25°F
SE
9 mph
9 mph
2100
25°F
SE
12 mph
12 mph
January 04, sunday
0000
21°F
SE
11 mph
11 mph
0300
19°F
SE
9 mph
9 mph
0600
18°F
SE
7 mph
7 mph
