World Resorts USA Key West Weather

Winter weather in Key West

Weather in Key West in Winter

December January February
Average day temperature:
Average day temperature: 75.7°F 72.4°F 74.0°F
Average night temperature:
Average night temperature: 72.5°F 69.5°F 70.6°F
Sea water temperature:
Sea water temperature: 75.8°F 73.4°F 73.6°F
Number of sunny days:
Number of sunny days: 11 days 11 days 12 days
Day length:
Day length: 10.6 - 10.7 h. 10.6 - 11.0 h. 10.3 - 11.6 h.
Number of rainy days:
Number of rainy days: 2 days 2 days 1 day
Precipitation totals:
Precipitation totals: 1.2 in. 1.3 in. 0.9 in.

Day & Night air temperature, °F

Sea water temperature, °F

Precipitation total, in.

Sunny, partly cloudy and cloudy days
Wind speed, mph
Average sunny hours

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

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 13 mph
Feels like: +66°F
Precip.: 0%
Places in USA:
Name
°F
+16°F
+25°F
+75°F
+75°F
+54°F
+54°F
+63°F
+21°F
+52°F
+54°F
+54°F
+50°F
+48°F
+46°F
+23°F
24 Hours Forecast
Key West
Local time: 04:10
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