World Resorts USA Key West Weather

Key West Sea Temperature in September

Average sea water temperature in September:
+86.0°F
Minimum sea water temperature in September: 89.6°F
Maximum sea water temperature in September: 82.8°F

Daily sea water temperature in September, °F

Show year:
2024
2023
2022

The average sea water temperature in September of 2024 was 87.4°F. The highest and lowest sea temperatures during the month were 89.6°F and 83.8°F.

Monthly sea water temperature in Key West, °F

Which USA resorts have warmest sea in September?

Place name September 2024 September 2023
Key West 87.4°F 87.3°F
Naples 87.2°F 86.8°F
Marco Island 87.2°F 86.7°F
Everglades 87.0°F 86.8°F
Siesta Key 86.8°F 85.8°F
Sarasota 86.7°F 85.8°F
Cape Coral 86.5°F 86.0°F
Fort Lauderdale 86.4°F 86.2°F
West Palm Beach 86.4°F 86.2°F
Miami Beach 86.3°F 86.3°F
Clearwater Beach 86.2°F 85.5°F
Miami 86.0°F 86.0°F
Tampa 86.0°F 85.5°F
South Padre Island 85.8°F 86.3°F
Cocoa Beach 85.2°F 84.4°F
Panama City Beach 84.8°F 85.1°F
Santa Rosa Beach 84.8°F 85.3°F
Corpus Christi 84.7°F 87.1°F
Miramar Beach 84.6°F 85.2°F
Destin 84.5°F 85.0°F

Best time for vacation in Key West

Sunniest months:
March 16 days
April 16 days
May 16 days
Warmest months:
August 87.5 °F
July 87.0 °F
September 85.8 °F
Warmest sea temp:
August 87.0 °F
July 86.5 °F
September 86.0 °F
Coldest months:
January 72.4 °F
February 74.0 °F
December 75.7 °F
Rainiest months:
August 7 days
July 7 days
September 7 days
Windiest months:
November 14.7 mph
December 13.7 mph
March 13.7 mph

Key West on a weather map

Key West
+66°F
S 15 mph
Feels like: +66°F
Precip.: 0%
Places in USA:
Name
°F
+14°F
+23°F
+75°F
+75°F
+50°F
+54°F
+61°F
+19°F
+50°F
+54°F
+54°F
+48°F
+46°F
+46°F
+23°F
24 Hours Forecast
Key West
Local time: 05:16
December 22, sunday
0600
66°F
S
15 mph
0900
64°F
S
14 mph
1200
68°F
SW
11 mph
1500
68°F
S
12 mph
1800
70°F
S
11 mph
2100
68°F
S
12 mph
December 23, monday
0000
70°F
SW
10 mph
0300
70°F
SW
15 mph
Units of measurement: °C / °F