World Resorts USA Key West Weather

Key West 7 Days Forecast

01.01
thu
Day
63°F
S 10 mph
Precip.
0%
Night
64°F
S 8 mph
Precip.
0%
02.01
fri
Day
66°F
SW 5 mph
Precip.
0%
Night
66°F
W 2 mph
Precip.
0%
03.01
sat
Day
68°F
N 2 mph
Precip.
0%
Night
70°F
E 6 mph
Precip.
0%
04.01
sun
Day
73°F
E 13 mph
Precip.
0%
Night
70°F
S 16 mph
Precip.
0%
05.01
mon
Day
68°F
SW 14 mph
Precip.
0%
Night
70°F
SW 9 mph
Precip.
0%
06.01
tue
Day
70°F
SW 11 mph
Precip.
100%
Night
73°F
W 21 mph
Precip.
0%
07.01
wed
Day
73°F
W 20 mph
Precip.
0%
Night
73°F
W 17 mph
Precip.
0%

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
02:36
Key West
+64°F
S 13 mph
Feels like: +64°F
Precip.: 0%
Places in USA:
Name
°F
Washington
+34°F
Hawaii
+73°F
Honolulu
+73°F
Las Vegas
+46°F
Los Angeles
+59°F
Miami
+43°F
Miami Beach
+54°F
Maui
+66°F
New York
+30°F
San Diego
+63°F
San Francisco
+54°F
Sarasota
+45°F
Tampa
+43°F
Houston
+45°F
Chicago
+14°F
all places
24 Hours Forecast
Key West
Local time: 02:36
January 01, thursday
0300
64°F
S
13 mph
0600
64°F
S
14 mph
0900
63°F
S
12 mph
1200
63°F
S
10 mph
1500
63°F
SW
8 mph
1800
64°F
SW
7 mph
2100
64°F
S
7 mph
January 02, friday
0000
64°F
S
8 mph
Units of measurement: °C / °F