Weather in Key West in Autumn
| September | October | November | ||||
| Average day temperature: | 85.8°F | 82.8°F | 78.3°F | |||
| Average night temperature: | 82.5°F | 79.5°F | 74.7°F | |||
| Sea water temperature: | 86.0°F | 83.1°F | 78.8°F | |||
| Number of sunny days: | 11 days | 11 days | 12 days | |||
| Day length: | 11.9 - 12.6 h. | 11.2 - 11.9 h. | 10.7 - 11.2 h. | |||
| Number of rainy days: | 7 days | 6 days | 3 days | |||
| Precipitation totals: | 5.0 in. | 3.8 in. | 1.6 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
September
October
November
0
14
28
42
56
70
84
98
112
77.5
82.0
84.9
75.7
80.1
83.0
| Day temperature | Night temperature |
Sea water temperature, °F
September
October
November
0
14
28
42
56
70
84
98
112
78.8
83.1
86
Precipitation total, in.
September
October
November
0.0
1.0
2.0
3.0
3.9
4.9
5.9
6.9
1.9
3.9
5.8
Sunny, partly cloudy and cloudy days
September
October
November
0
5
10
15
20
25
30
35
7
8
7
11
13
14
11
10
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
September
October
November
0.0
2.4
4.9
7.3
9.8
12.2
14.6
17.1
14.2
14
10.3
Average sunny hours
September
October
November
0
1
2
3
4
5
6
7
8
6.3
7
7.1
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
