25.12
thu
thu
Day
73°F
SW 16 mph
Precip.
0%
0%
Night
70°F
S 13 mph
Precip.
0%
0%
26.12
fri
fri
Day
72°F
SW 11 mph
Precip.
0%
0%
Night
66°F
SW 6 mph
Precip.
0%
0%
27.12
sat
sat
Day
66°F
SW 7 mph
Precip.
0%
0%
Night
72°F
S 6 mph
Precip.
0%
0%
28.12
sun
sun
Day
72°F
SW 9 mph
Precip.
0%
0%
Night
73°F
W 10 mph
Precip.
0%
0%
29.12
mon
mon
Day
72°F
NW 7 mph
Precip.
0%
0%
Night
72°F
SE 13 mph
Precip.
0%
0%
30.12
tue
tue
Day
70°F
NW 17 mph
Precip.
0%
0%
Night
68°F
NE 19 mph
Precip.
0%
0%
31.12
wed
wed
Day
64°F
S 17 mph
Precip.
0%
0%
Night
70°F
S 15 mph
Precip.
0%
0%
01.01
thu
thu
Day
70°F
SW 14 mph
Precip.
0%
0%
Night
72°F
SW 13 mph
Precip.
76%
76%
02.01
fri
fri
Day
68°F
SW 15 mph
Precip.
0%
0%
Night
70°F
SW 16 mph
Precip.
0%
0%
03.01
sat
sat
Day
70°F
SW 16 mph
Precip.
28%
28%
Night
73°F
W 18 mph
Precip.
0%
0%
04.01
sun
sun
Day
72°F
W 27 mph
Precip.
100%
100%
Night
73°F
W 22 mph
Precip.
0%
0%
05.01
mon
mon
Day
73°F
SW 16 mph
Precip.
0%
0%
Night
72°F
SW 17 mph
Precip.
100%
100%
06.01
tue
tue
Day
70°F
SW 13 mph
Precip.
0%
0%
Night
72°F
S 8 mph
Precip.
0%
0%
07.01
wed
wed
Day
70°F
S 8 mph
Precip.
0%
0%
Night
72°F
SE 7 mph
Precip.
0%
0%
sea water
temperature
temperature
| Key West |
monthly
weather
weather
| Key West |
current
weather
weather
| Key West |
7 days
forecast
forecast
| Key West |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 76.3°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
Key West on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Key West
Local time: 17:56
December 25, thursday
1800
73°F
SW
9 mph
9 mph
2100
72°F
SW
6 mph
6 mph
December 26, friday
0000
70°F
S
13 mph
13 mph
0300
70°F
S
14 mph
14 mph
0600
70°F
S
15 mph
15 mph
0900
72°F
SW
13 mph
13 mph
1200
72°F
SW
11 mph
11 mph
1500
72°F
SW
9 mph
9 mph
