Current sea water temperature:
+71.6°F
| Minimum sea water temperature in September: | 75.0°F |
| Maximum sea water temperature in September: | 60.4°F |
| Average sea water temperature in September: | 69.5°F |
| more information | |
14 days
forecast
forecast
| Evanston |
monthly
weather
weather
| Evanston |
Sea water temperature for the last 10 days:
| September 10 | 71.6°F | September 5 | 72.1°F |
| September 9 | 72.1°F | September 4 | 73.6°F |
| September 8 | 71.8°F | September 3 | 72.5°F |
| September 7 | 72.5°F | September 2 | 71.1°F |
| September 6 | 71.4°F | September 1 | 73.8°F |
Monthly sea water temperature, °F
When is the warmest sea in Evanston?
Based on the data about daily sea water temperature for the last three years the warmest sea in Evanston was noticed in August, July and September.
Monthly Sea Temperatures in Evanston, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 72.2°F. The highest and lowest sea temperatures during the month were 74.3°F and 68.2°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 72.1°F. The highest and lowest sea temperatures during the month were 77.7°F and 65.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 69.6°F. The highest and lowest sea temperatures during the month were 72.0°F and 66.4°F.
current
weather
weather
| Evanston |
weather in
September
September
| Evanston |
Best time for vacation in Evanston
Evanston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Evanston
Local time: 22:29
September 11, friday
0000
66°F
W
5 mph
5 mph
0300
64°F
W
4 mph
4 mph
0600
66°F
NW
2 mph
2 mph
0900
70°F
NW
4 mph
4 mph
1200
77°F
NW
7 mph
7 mph
1500
79°F
W
9 mph
9 mph
1800
73°F
W
7 mph
7 mph
2100
72°F
NW
5 mph
5 mph
