Average sea water temperature in September:
+66.2°F
| Minimum sea water temperature in September: | 75.9°F |
| Maximum sea water temperature in September: | 32.0°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 68.5°F. The highest and lowest sea temperatures during the month were 74.7°F and 63.3°F.
Monthly sea water temperature in Chicago, °F
Which USA resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Key West | 87.8°F | 86.9°F |
| Naples | 87.0°F | 86.1°F |
| Galveston | 87.0°F | 85.5°F |
| Siesta Key | 86.9°F | 84.9°F |
| Houston | 86.9°F | 84.9°F |
| Corpus Christi | 86.8°F | 85.8°F |
| Sarasota | 86.8°F | 84.8°F |
| West Palm Beach | 86.6°F | 86.2°F |
| Fort Lauderdale | 86.6°F | 86.4°F |
| New Orleans | 86.4°F | 84.3°F |
| Gulf Shores | 86.1°F | 84.3°F |
| St. Petersburg | 86.1°F | 84.1°F |
| Orange Beach | 86.0°F | 84.0°F |
| Pensacola Beach | 85.9°F | 83.9°F |
| Tampa | 85.9°F | 84.3°F |
| Clearwater Beach | 85.9°F | 84.0°F |
| Miami Beach | 85.8°F | 86.1°F |
| Panama City Beach | 85.8°F | 83.4°F |
| Pensacola | 85.7°F | 83.9°F |
| Destin | 85.6°F | 83.1°F |
Best time for vacation in Chicago
Chicago on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Chicago
Local time: 00:29
November 14, saturday
0300
36°F
SE
9 mph
9 mph
0600
34°F
SE
8 mph
8 mph
0900
37°F
SE
7 mph
7 mph
1200
43°F
SE
6 mph
6 mph
1500
45°F
SE
6 mph
6 mph
1800
43°F
SE
4 mph
4 mph
2100
41°F
SE
5 mph
5 mph
November 15, sunday
0000
39°F
SE
4 mph
4 mph
