World Resorts USA Key West Weather

Key West 14 Days Forecast

22.12
mon
Day
77°F
SW 21 mph
Precip.
0%
Night
73°F
W 24 mph
Precip.
0%
23.12
tue
Day
73°F
W 18 mph
Precip.
0%
Night
72°F
W 22 mph
Precip.
0%
24.12
wed
Day
72°F
SW 19 mph
Precip.
0%
Night
73°F
SW 19 mph
Precip.
70%
25.12
thu
Day
73°F
SW 18 mph
Precip.
76%
Night
75°F
W 14 mph
Precip.
71%
26.12
fri
Day
73°F
SW 12 mph
Precip.
100%
Night
73°F
SW 7 mph
Precip.
100%
27.12
sat
Day
73°F
SW 16 mph
Precip.
0%
Night
75°F
W 17 mph
Precip.
0%
28.12
sun
Day
73°F
SW 15 mph
Precip.
0%
Night
73°F
SW 13 mph
Precip.
100%
29.12
mon
Day
73°F
SW 21 mph
Precip.
0%
Night
73°F
SW 20 mph
Precip.
27%
30.12
tue
Day
72°F
SW 16 mph
Precip.
57%
Night
73°F
W 19 mph
Precip.
49%
31.12
wed
Day
73°F
W 12 mph
Precip.
0%
Night
73°F
NW 6 mph
Precip.
0%
01.01
thu
Day
72°F
SE 9 mph
Precip.
0%
Night
72°F
S 12 mph
Precip.
0%
02.01
fri
Day
70°F
SW 11 mph
Precip.
0%
Night
73°F
W 14 mph
Precip.
0%
03.01
sat
Day
73°F
W 14 mph
Precip.
0%
Night
73°F
W 15 mph
Precip.
0%
04.01
sun
Day
73°F
NW 9 mph
Precip.
0%
Night
73°F
SW 8 mph
Precip.
0%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 76.5°F. The highest and lowest sea temperatures during the month were 79.3°F and 74.1°F.

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 70.3°F. The highest and lowest sea temperatures during the month were 75.6°F and 66.0°F.

Air temperature in Key West, °F

Precipitation total in Key West, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Key West

Sunniest months:
May 16 days
March 16 days
April 16 days
Warmest months:
August 87.4 °F
July 86.9 °F
September 85.8 °F
Warmest sea temp:
August 87.2 °F
July 86.6 °F
September 86.1 °F
Coldest months:
January 72.1 °F
February 74.0 °F
December 75.4 °F
Rainiest months:
June 7 days
August 7 days
September 6 days
Windiest months:
November 14.7 mph
December 13.9 mph
January 13.8 mph

Key West on a weather map

Current weather
08:03
Key West
+73°F
SW 21 mph
Feels like: +77°F
Precip.: 0%
Places in USA:
Name
°F
Washington
+30°F
Hawaii
+75°F
Honolulu
+75°F
Las Vegas
+48°F
Los Angeles
+54°F
Miami
+72°F
Miami Beach
+77°F
Maui
+68°F
New York
+27°F
San Diego
+57°F
San Francisco
+57°F
Sarasota
+61°F
Tampa
+59°F
Houston
+70°F
Chicago
+32°F
all places
24 Hours Forecast
Key West
Local time: 08:03
December 22, monday
0900
73°F
SW
21 mph
1200
77°F
SW
21 mph
1500
79°F
W
22 mph
1800
77°F
W
25 mph
2100
72°F
W
25 mph
December 23, tuesday
0000
73°F
W
24 mph
0300
73°F
W
24 mph
0600
73°F
W
22 mph
Units of measurement: °C / °F