Weather in Key West in Summer
| June | July | August | ||||
| Average day temperature: | 84.8°F | 87.0°F | 87.5°F | |||
| Average night temperature: | 81.4°F | 82.9°F | 83.1°F | |||
| Sea water temperature: | 84.6°F | 86.5°F | 87.0°F | |||
| Number of sunny days: | 11 days | 12 days | 10 days | |||
| Day length: | 13.6 - 13.7 h. | 13.3 - 13.6 h. | 12.6 - 13.3 h. | |||
| Number of rainy days: | 7 days | 7 days | 7 days | |||
| Precipitation totals: | 3.9 in. | 4.4 in. | 4.2 in. | |||
current
weather
weather
| Key West |
monthly
weather
weather
| Key West |
sea water
temperature
temperature
| Key West |
14 days
forecast
forecast
| Key West |
Day & Night air temperature, °F
June
July
August
0
14
28
42
56
70
84
98
112
86.3
86.1
83.9
83.8
83.8
82.1
| Day temperature | Night temperature |
Sea water temperature, °F
June
July
August
0
14
28
42
56
70
84
98
112
87
86.5
84.6
Precipitation total, in.
June
July
August
0.0
0.9
1.8
2.7
3.6
4.5
5.5
6.4
4.8
5.3
4.3
Sunny, partly cloudy and cloudy days
June
July
August
0
5
10
15
20
25
30
35
8
5
6
15
17
14
7
9
9
| Cloudy days | Partly cloudy days | Sunny days |
weather in
winter
winter
| Key West |
weather in
spring
spring
| Key West |
weather in
summer
summer
| Key West |
weather in
autumn
autumn
| Key West |
Wind speed, mph
June
July
August
0.0
1.9
3.7
5.6
7.4
9.3
11.2
13.0
10.8
10.1
10
Average sunny hours
June
July
August
0
1
2
3
4
5
6
7
8
7
7.3
7.4
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.
Best time for vacation in Key West
Key West on a weather map
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Key West
Local time: 23:23
April 01, tuesday
0000
75°F
W
7 mph
7 mph
0300
73°F
W
7 mph
7 mph
0600
73°F
W
6 mph
6 mph
0900
73°F
W
8 mph
8 mph
1200
73°F
W
8 mph
8 mph
1500
73°F
W
9 mph
9 mph
1800
73°F
W
10 mph
10 mph
2100
75°F
W
12 mph
12 mph
