Current sea water temperature:
+33.8°F
| Minimum sea water temperature in February: | 38.1°F |
| Maximum sea water temperature in February: | 30.6°F |
| Average sea water temperature in February: | 33.6°F |
| more information | |
14 days
forecast
forecast
| Chicago |
monthly
weather
weather
| Chicago |
Sea water temperature for the last 10 days:
| February 4 | 33.8°F | January 30 | 33.6°F |
| February 3 | 33.6°F | January 29 | 33.6°F |
| February 2 | 33.6°F | January 28 | 33.6°F |
| February 1 | 33.6°F | January 27 | 33.6°F |
| January 31 | 33.6°F | January 26 | 35.4°F |
Monthly sea water temperature, °F
When is the warmest sea in Chicago?
Based on the data about daily sea water temperature for the last three years the warmest sea in Chicago was noticed in August, July and September.
Monthly Sea Temperatures in Chicago, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 73.8°F. The highest and lowest sea temperatures during the month were 77.9°F and 69.1°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 73.3°F. The highest and lowest sea temperatures during the month were 76.3°F and 70.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 65.0°F. The highest and lowest sea temperatures during the month were 70.2°F and 59.0°F.
current
weather
weather
| Chicago |
weather in
February
February
| Chicago |
Best time for vacation in Chicago
Chicago on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Chicago
Local time: 15:55
February 04, wednesday
1800
25°F
SE
4 mph
4 mph
2100
21°F
E
3 mph
3 mph
February 05, thursday
0000
18°F
NE
3 mph
3 mph
0300
16°F
NE
4 mph
4 mph
0600
16°F
NE
6 mph
6 mph
0900
19°F
NE
8 mph
8 mph
1200
23°F
NE
11 mph
11 mph
1500
28°F
NE
10 mph
10 mph
