Measurements:
°C
°F
Evanston
56°F
SW 9 mph
Feels like: 54°F
Precip: 17%
World Resorts USA Evanston Weather

Evanston Sea Water Temperature

Current Sea Water Temperature:
+59.6°F
Maximum Sea Water Temperature in October: 76.4°F
Minimum Sea Water Temperature in October: 45.4°F
Average water temperature in October: 61.6°F

Sea Water Temperature for the Last 10 Days:

October 26 59.6°F October 21 59.0°F
October 25 59.6°F October 20 59.4°F
October 24 59.8°F October 19 59.8°F
October 23 59.8°F October 18 61.6°F
October 22 59.6°F October 17 62.2°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Evanston was 74.7°F. The maximum and minimum values were 70.2°F and 77.0°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Evanston was 74.5°F. The maximum and minimum values were 67.4°F and 80.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Evanston was 69.0°F. The maximum and minimum values were 62.6°F and 76.4°F respectively.

Best Time to Visit Evanston
The most sunny months:
August 17 days
June 16 days
September 15 days
The most warm months:
July 83.2 °F
August 82.8 °F
June 78.0 °F
Warmest sea temperature:
August 75.6 °F
July 73.8 °F
September 71.2 °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
F°
Boston +58
Chicago +58
Hawaii +80
Houston +74
Las Vegas +64
Los Angeles +74
Maui +72
Miami +82
New York +62
Panama City Beach +64
San Diego +74
San Francisco +60
Santa Monica +72
Tampa +72
Washington +58
24 Hours Weather Forecast
Evanston
Local time: 23:42
27 oct, tuesday
0000 56°F
SW
9 mph
0300 56°F
W
7 mph
0600 56°F
W
6 mph
0900 58°F
NW
7 mph
1200 66°F
NW
6 mph
1500 70°F
N
7 mph
1800 68°F
NW
4 mph
2100 66°F
N
4 mph