Current sea water temperature:
+78.1°F
| Minimum sea water temperature in April: | 83.8°F |
| Maximum sea water temperature in April: | 72.5°F |
| Average sea water temperature in April: | 78.7°F |
| more information | |
14 days
forecast
forecast
| Key West |
monthly
weather
weather
| Key West |
Sea water temperature for the last 10 days:
| April 25 | 78.1°F | April 20 | 77.2°F |
| April 24 | 78.4°F | April 19 | 77.2°F |
| April 23 | 78.4°F | April 18 | 77.0°F |
| April 22 | 77.2°F | April 17 | 76.3°F |
| April 21 | 77.4°F | April 16 | 76.5°F |
Monthly sea water temperature, °F
When is the warmest sea in Key West?
Based on the data about daily sea water temperature for the last three years the warmest sea in Key West was noticed in August, July and September.
Monthly Sea Temperatures in Key West, °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
78.7
75.8
73.7
73.2
Sea water temperature in August, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
81
84
87
90
93
96
The average sea water temperature in August of 2024 was 87.8°F. The highest and lowest sea temperatures during the month were 89.2°F and 86.2°F.
Sea water temperature in July, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
81
84
87
90
93
96
The average sea water temperature in July of 2024 was 87.6°F. The highest and lowest sea temperatures during the month were 89.1°F and 85.8°F.
Sea water temperature in September, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
79
82
85
88
91
94
The average sea water temperature in September of 2024 was 87.4°F. The highest and lowest sea temperatures during the month were 89.6°F and 83.8°F.
current
weather
weather
| Key West |
weather in
April
April
| 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: 23:34
April 26, saturday
0000
77°F
W
21 mph
21 mph
0300
75°F
W
19 mph
19 mph
0600
75°F
W
18 mph
18 mph
0900
73°F
W
20 mph
20 mph
1200
75°F
W
17 mph
17 mph
1500
77°F
W
15 mph
15 mph
1800
77°F
W
16 mph
16 mph
2100
75°F
W
19 mph
19 mph
