World Resorts USA Key West Weather

Key West weather in December

Weather in Key West: December

Average day temperature: 75.7°F
Average night temperature: 72.5°F
Sea water temperature: 75.9°F
Number of sunny days: 11 days
Day length: 10.6 - 10.7 hours
Number of rainy days: 2 days
Precipitation totals: 1.2 in.

Air temperature in December, °F

Show year:
2023
2022
2021

The highest day temperature during December of 2023 was 77°F. At the same time the lowest night temperature was 66°F. Day and night temperature averages during December were 71.8°F and 71.8°F.

Sea water temperature in Key West in December, °F

Show year:
2023
2022
2021

The average sea water temperature in December of 2023 was 74.9°F. The highest and lowest sea temperatures during the month were 79.2°F and 71.1°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in December is almost equal.

Precipitation total in December, in.

Precipitation total value in Key West in December is 1.4 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 13.3 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 6.1.

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
+70°F
S 21 mph
Feels like: +70°F
Precip.: 0%
Places in USA:
Name
°F
+37°F
+39°F
+75°F
+75°F
+59°F
+63°F
+75°F
+72°F
+45°F
+61°F
+59°F
+68°F
+63°F
+61°F
+27°F
24 Hours Forecast
Key West
Local time: 13:47
December 03, tuesday
1500
70°F
S
21 mph
1800
72°F
S
21 mph
2100
70°F
SW
22 mph
December 04, wednesday
0000
68°F
SW
24 mph
0300
66°F
SW
22 mph
0600
63°F
SW
22 mph
0900
64°F
SW
21 mph
1200
66°F
SW
20 mph
Units of measurement: °C / °F