Measurements:
°C
°F
Chicago
20°F
N 4 mph
Feels like: 12°F
Precip: 0%
World Resorts USA Chicago Weather

Chicago Sea Water Temperature

Current Sea Water Temperature:
+37.4°F
Maximum Sea Water Temperature in December: 47.4°F
Minimum Sea Water Temperature in December: 30.2°F
Average water temperature in December: 39.7°F

Sea Water Temperature for the Last 10 Days:

December 22 37.4°F December 17 38.4°F
December 21 38.0°F December 16 38.2°F
December 20 37.8°F December 15 38.2°F
December 19 37.6°F December 14 38.0°F
December 18 37.6°F December 13 38.2°F

When is the Warmest Sea for Chicago?

According to our data for the last three years for Chicago 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: 2024 2023 2022

The average sea surface temperature in August 2024 for Chicago was 77.2°F. The maximum and minimum values were 74.6°F and 79.6°F respectively.

Sea Water Temperature in July

Select Year: 2024 2023 2022

The average sea surface temperature in July 2024 for Chicago was 73.7°F. The maximum and minimum values were 67.6°F and 77.8°F respectively.

Sea Water Temperature in September

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Chicago was 74.0°F. The maximum and minimum values were 70.6°F and 78.0°F respectively.

Best Time to Visit Chicago
The most sunny months:
July 16 days
August 16 days
September 16 days
The most warm months:
July 83.6 °F
August 83.2 °F
June 76.7 °F
Warmest sea temperature:
August 72.3 °F
July 69.8 °F
September 68.0 °F
The most cold months:
January 26.0 °F
February 28.7 °F
December 34.5 °F
The most rainy months:
June 7 days
May 7 days
July 6 days
The most windy months:
November 12 mph
January 12 mph
February 11 mph

Chicago on the Weather Map

USA Resorts:
NAME
Boston +10
Chicago +20
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +50
Los Angeles +54
Miami +62
New York +16
Orlando +50
San Diego +54
San Francisco +54
Sarasota +48
Tampa +46
Washington +20
24 Hours Weather Forecast
Chicago
Local time: 04:23
22 dec, sunday
0600 20°F
N
8 mph
0900 24°F
N
9 mph
1200 28°F
N
12 mph
1500 32°F
N
13 mph
1800 30°F
N
15 mph
2100 30°F
N
17 mph
23 dec, monday
0000 30°F
N
17 mph
0300 28°F
N
19 mph