Current sea water temperature:
+74.7°F
| Minimum sea water temperature in March: | 80.2°F |
| Maximum sea water temperature in March: | 70.7°F |
| Average sea water temperature in March: | 75.8°F |
| more information | |
14 days
forecast
forecast
| Key West |
monthly
weather
weather
| Key West |
Sea water temperature for the last 10 days:
| March 25 | 74.7°F | March 20 | 73.4°F |
| March 24 | 74.7°F | March 19 | 74.5°F |
| March 23 | 72.3°F | March 18 | 76.1°F |
| March 22 | 72.5°F | March 17 | 77.2°F |
| March 21 | 73.6°F | March 16 | 76.6°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
78.8
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
March
March
| Key West |
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: 00:43
March 26, wednesday
0300
72°F
S
9 mph
9 mph
0600
70°F
SE
9 mph
9 mph
0900
68°F
S
14 mph
14 mph
1200
68°F
S
12 mph
12 mph
1500
70°F
S
9 mph
9 mph
1800
70°F
SW
6 mph
6 mph
2100
70°F
W
10 mph
10 mph
March 27, thursday
0000
72°F
SW
17 mph
17 mph
