Average sea water temperature in September:
+85.9°F
| Minimum sea water temperature in September: | 88.9°F |
| Maximum sea water temperature in September: | 82.8°F |
Daily sea water temperature in September, °F
Show year:
2023
2022
2021
The average sea water temperature in September of 2023 was 87.3°F. The highest and lowest sea temperatures during the month were 88.9°F and 85.6°F.
sea water
temperature
temperature
| Key West |
monthly
weather
weather
| Key West |
current
weather
weather
| Key West |
14 days
forecast
forecast
| Key West |
Monthly sea water temperature in Key West, °F
Which USA resorts have warmest sea in September?
| Place name | September 2023 | September 2022 |
|---|---|---|
| Key West | 87.3°F | 87.3°F |
| Corpus Christi | 87.1°F | 85.4°F |
| Naples | 86.8°F | 87.3°F |
| Everglades | 86.8°F | 86.4°F |
| Marco Island | 86.7°F | 87.2°F |
| Galveston Island | 86.6°F | 85.2°F |
| Galveston | 86.5°F | 85.1°F |
| Miami Beach | 86.3°F | 86.7°F |
| South Padre Island | 86.3°F | 84.9°F |
| Fort Lauderdale | 86.2°F | 86.4°F |
| West Palm Beach | 86.2°F | 86.3°F |
| Houston | 86.1°F | 84.5°F |
| Miami | 86.0°F | 86.5°F |
| Siesta Key | 85.8°F | 86.3°F |
| Sarasota | 85.8°F | 86.1°F |
| Gulf Shores | 85.5°F | 84.9°F |
| Tampa | 85.5°F | 85.4°F |
| Clearwater Beach | 85.5°F | 85.3°F |
| St. Petersburg | 85.3°F | 85.6°F |
| Santa Rosa Beach | 85.3°F | 84.5°F |
Best time for vacation in Key West
Key West on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Key West
Local time: 17:52
April 28, sunday
1800
77°F
W
23 mph
23 mph
2100
77°F
W
24 mph
24 mph
April 29, monday
0000
77°F
W
24 mph
24 mph
0300
75°F
W
23 mph
23 mph
0600
75°F
W
22 mph
22 mph
0900
75°F
W
21 mph
21 mph
1200
77°F
W
22 mph
22 mph
1500
77°F
W
19 mph
19 mph
