15.01
thu
thu
Day
73°F
E 27 mph
Precip.
0%
0%
Night
63°F
S 23 mph
Precip.
0%
0%
16.01
fri
fri
Day
61°F
SW 14 mph
Precip.
0%
0%
Night
70°F
W 15 mph
Precip.
0%
0%
17.01
sat
sat
Day
68°F
SW 9 mph
Precip.
100%
100%
Night
72°F
W 6 mph
Precip.
64%
64%
18.01
sun
sun
Day
72°F
E 17 mph
Precip.
0%
0%
Night
63°F
S 24 mph
Precip.
84%
84%
19.01
mon
mon
Day
57°F
S 19 mph
Precip.
0%
0%
Night
64°F
SW 15 mph
Precip.
0%
0%
20.01
tue
tue
Day
64°F
SW 19 mph
Precip.
53%
53%
Night
66°F
SW 24 mph
Precip.
0%
0%
21.01
wed
wed
Day
66°F
SW 26 mph
Precip.
0%
0%
Night
70°F
SW 24 mph
Precip.
24%
24%
22.01
thu
thu
Day
72°F
SW 22 mph
Precip.
100%
100%
Night
73°F
SW 27 mph
Precip.
77%
77%
23.01
fri
fri
Day
73°F
W 25 mph
Precip.
59%
59%
Night
75°F
W 24 mph
Precip.
100%
100%
24.01
sat
sat
Day
75°F
W 14 mph
Precip.
100%
100%
Night
75°F
NW 12 mph
Precip.
100%
100%
25.01
sun
sun
Day
75°F
NE 4 mph
Precip.
0%
0%
Night
72°F
NE 14 mph
Precip.
0%
0%
26.01
mon
mon
Day
73°F
SW 29 mph
Precip.
25%
25%
Night
72°F
W 30 mph
Precip.
100%
100%
27.01
tue
tue
Day
73°F
W 26 mph
Precip.
100%
100%
Night
75°F
W 24 mph
Precip.
69%
69%
28.01
wed
wed
Day
75°F
W 20 mph
Precip.
78%
78%
Night
75°F
W 16 mph
Precip.
64%
64%
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 January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 73.6°F. The highest and lowest sea temperatures during the month were 75.4°F and 71.6°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: 06:44
January 15, thursday
0900
72°F
E
19 mph
19 mph
1200
73°F
E
27 mph
27 mph
1500
72°F
SE
30 mph
30 mph
1800
70°F
SE
29 mph
29 mph
2100
66°F
S
22 mph
22 mph
January 16, friday
0000
63°F
S
23 mph
23 mph
0300
61°F
S
21 mph
21 mph
0600
59°F
SW
18 mph
18 mph
