Measurements:
°C
°F
Evanston
64°F
E 7 mph
Feels like: 64°F
Precip: 19%
World Resorts USA Evanston Weather

Evanston Sea Water Temperature

Current Sea Water Temperature:
+60.8°F
Maximum Sea Water Temperature in June: 74.8°F
Minimum Sea Water Temperature in June: 55.2°F
Average water temperature in June: 63.6°F

Sea Water Temperature for the Last 10 Days:

June 24 60.8°F June 19 61.8°F
June 23 59.8°F June 18 61.4°F
June 22 61.4°F June 17 64.2°F
June 21 62.4°F June 16 63.6°F
June 20 61.2°F June 15 64.2°F

When is the Warmest Sea for Evanston?

According to our data for the last three years for Evanston 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: 2025 2024 2023

The average sea surface temperature in August 2025 for Evanston was 76.5°F. The maximum and minimum values were 72.6°F and 79.4°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Evanston was 75.5°F. The maximum and minimum values were 72.6°F and 80.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Evanston was 71.7°F. The maximum and minimum values were 68.2°F and 74.4°F respectively.

Best Time to Visit Evanston
The most sunny months:
September 17 days
August 17 days
June 15 days
The most warm months:
August 82.9 °F
July 82.9 °F
June 78.2 °F
Warmest sea temperature:
August 75.8 °F
July 73.7 °F
September 71.5 °F
The most cold months:
January 26.1 °F
February 30.3 °F
December 34.2 °F
The most rainy months:
May 3 days
April 2 days
October 2 days
The most windy months:
November 11 mph
March 10 mph
January 10 mph

Evanston on the Weather Map

USA Resorts:
NAME
Chicago +66
Hawaii +80
Honolulu +80
Houston +82
Las Vegas +96
Los Angeles +66
Maui +74
Miami +80
Miami Beach +88
Myrtle Beach +78
New York +70
San Diego +68
San Francisco +58
Sarasota +84
Tampa +84
24 Hours Weather Forecast
Evanston
Local time: 23:21
25 jun, thursday
0000 64°F
E
7 mph
0300 64°F
E
7 mph
0600 66°F
E
6 mph
0900 72°F
E
7 mph
1200 76°F
SE
7 mph
1500 78°F
E
7 mph
1800 74°F
SE
7 mph
2100 68°F
SW
7 mph