Average sea water temperature in March:
+75.8°F
| Minimum sea water temperature in March: | 80.2°F |
| Maximum sea water temperature in March: | 70.7°F |
Daily sea water temperature in March, °F
Show year:
2025
2024
2023
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68
71
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77
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86
The average sea water temperature in March of 2025 was 74.3°F. The highest and lowest sea temperatures during the month were 77.2°F and 72.3°F.
sea water
temperature
temperature
| Key West |
monthly
weather
weather
| Key West |
current
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| Key West |
14 days
forecast
forecast
| Key West |
Monthly sea water temperature 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
Which USA resorts have warmest sea in March?
| Place name | March 2025 | March 2024 |
|---|---|---|
| Kailua Kona | 77.7°F | 76.5°F |
| Honolulu | 76.7°F | 75.8°F |
| Hawaii | 76.6°F | 75.7°F |
| Maui | 76.0°F | 75.1°F |
| Fort Lauderdale | 75.8°F | 75.7°F |
| West Palm Beach | 75.7°F | 76.6°F |
| Oahu | 75.6°F | 74.5°F |
| Miami Beach | 75.2°F | 76.0°F |
| Kauai | 74.9°F | 74.5°F |
| Everglades | 74.4°F | 77.3°F |
| Key West | 74.3°F | 76.5°F |
| Miami | 74.3°F | 75.5°F |
| Marco Island | 71.7°F | 74.5°F |
| Cape Coral | 71.6°F | 74.2°F |
| Naples | 71.3°F | 73.8°F |
| Cocoa Beach | 69.7°F | 71.5°F |
| Tampa | 69.1°F | 71.7°F |
| Sarasota | 68.4°F | 71.4°F |
| Siesta Key | 68.3°F | 71.3°F |
| Clearwater Beach | 67.3°F | 70.4°F |
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: 13:54
March 29, saturday
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
1200
75°F
NW
14 mph
14 mph
