World Resorts USA Key West Weather

Key West 7 Days Forecast

08.04
wed
Day
75°F
SW 6 mph
Precip.
100%
Night
75°F
W 11 mph
Precip.
0%
09.04
thu
Day
75°F
SW 12 mph
Precip.
0%
Night
75°F
W 24 mph
Precip.
100%
10.04
fri
Day
75°F
W 22 mph
Precip.
0%
Night
75°F
W 26 mph
Precip.
0%
11.04
sat
Day
75°F
W 23 mph
Precip.
0%
Night
75°F
W 26 mph
Precip.
62%
12.04
sun
Day
75°F
W 27 mph
Precip.
100%
Night
77°F
W 24 mph
Precip.
100%
13.04
mon
Day
75°F
W 23 mph
Precip.
29%
Night
77°F
W 24 mph
Precip.
43%
14.04
tue
Day
77°F
W 19 mph
Precip.
57%
Night
77°F
W 24 mph
Precip.
100%

Sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 78.0°F. The highest and lowest sea temperatures during the month were 80.1°F and 75.6°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

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 72.0 °F
February 73.7 °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
12:49
Key West
+75°F
SW 6 mph
Feels like: +79°F
Precip.: 100%
Places in USA:
Name
°F
Washington
+50°F
Hawaii
+72°F
Honolulu
+72°F
Las Vegas
+75°F
Los Angeles
+61°F
Miami
+77°F
Miami Beach
+77°F
Maui
+68°F
New York
+50°F
San Diego
+63°F
San Francisco
+61°F
Sarasota
+73°F
Tampa
+75°F
Houston
+75°F
Chicago
+50°F
all places
24 Hours Forecast
Key West
Local time: 12:49
April 08, wednesday
1500
77°F
SW
4 mph
1800
77°F
SW
4 mph
2100
75°F
SW
9 mph
April 09, thursday
0000
75°F
W
11 mph
0300
75°F
W
9 mph
0600
75°F
SW
7 mph
0900
75°F
SW
9 mph
1200
75°F
SW
12 mph
Units of measurement: °C / °F