Please click on any column to get detailed information about Key West weather in that particular month. You will get daily weather information for that month for the last several years.
Day & Night air temperature, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
74.0
77.5
82.0
84.9
86.3
86.1
83.9
80.9
78.3
75.5
73.8
71.3
72.6
75.7
80.1
83.0
83.8
83.8
82.1
79.0
75.9
72.8
71.1
69.1
Day temperature | Night temperature |
The warmest month in Key West is august. The average daily temp is 86.3°F. The average nightly temp is 83.8°F.
Sea water temperature, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
75.7
78.8
83.1
86
87
86.5
84.6
81.9
78.8
75.8
73.7
73.2
The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 87.0°F.
Precipitation total, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.0
2.0
3.0
3.9
4.9
5.9
6.9
1.2
1.9
3.9
5.8
4.8
5.3
4.3
4.4
1.4
0.6
1
1.3
Number of rainy days
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
2
3
6
6
8
8
8
6
3
1
1
2
This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.
Wind speed, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
2
4
6
8
10
12
14
16
18
13.6
14.2
14
10.3
10.8
10.1
10
11.4
13
13.7
13
13.7
Sunny, partly cloudy and cloudy days
1
2
3
4
5
6
7
8
9
10
11
12
0
5
10
15
20
25
30
35
9
7
8
7
8
5
6
5
4
4
7
11
11
11
13
14
15
17
14
11
12
12
12
11
11
11
10
9
7
9
9
14
14
14
10
9
Cloudy days | Partly cloudy days | Sunny days |
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
6.1
6.3
7
7.1
7
7.3
7.4
8.8
8
7.7
6.8
5.8
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
* Charts above show average data for the last 3 years.
sea water
temperature
temperature
Key West |
14 days
forecast
forecast
Key West |
current
weather
weather
Key West |
7 days
forecast
forecast
Key West |
Best time for vacation in Key West
Key West on a weather map
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Places in USA:
Name
°F
24 Hours Forecast
Key West
Local time: 09:40
March 29, saturday
1200

75°F
W
22 mph
22 mph
1500

77°F
W
22 mph
22 mph
1800

79°F
W
23 mph
23 mph
2100

77°F
W
22 mph
22 mph
March 30, sunday
0000

75°F
W
22 mph
22 mph
0300

75°F
NW
19 mph
19 mph
0600

75°F
NW
19 mph
19 mph
0900

75°F
NW
17 mph
17 mph