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:
2026
2025
2024
The average sea water temperature in March of 2026 was 76.5°F. The highest and lowest sea temperatures during the month were 79.5°F and 72.7°F.
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| Key West |
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Monthly sea water temperature in Key West, °F
Which USA resorts have warmest sea in March?
| Place name | March 2026 | March 2025 |
|---|---|---|
| West Palm Beach | 77.1°F | 75.8°F |
| Miami Beach | 76.8°F | 75.3°F |
| Honolulu | 76.7°F | 76.8°F |
| Fort Lauderdale | 76.6°F | 75.8°F |
| Hawaii | 76.5°F | 76.7°F |
| Kauai | 76.5°F | 75.0°F |
| Key West | 76.5°F | 74.5°F |
| Hilo | 76.3°F | 76.3°F |
| Molokai | 76.2°F | 76.6°F |
| Miami | 76.0°F | 74.4°F |
| Maui | 75.5°F | 76.0°F |
| Oahu | 74.9°F | 75.7°F |
| Naples | 72.6°F | 71.4°F |
| Corpus Christi | 71.9°F | 67.0°F |
| Tampa | 71.7°F | 69.3°F |
| Cocoa Beach | 71.7°F | 70.0°F |
| St. Petersburg | 71.2°F | 68.8°F |
| Sarasota | 70.6°F | 68.6°F |
| Clearwater Beach | 70.2°F | 67.6°F |
| Siesta Key | 70.1°F | 68.5°F |
Best time for vacation in Key West
Key West on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Key West
Local time: 03:58
June 26, friday
0600
84°F
NW
19 mph
19 mph
0900
86°F
NW
16 mph
16 mph
1200
90°F
NW
12 mph
12 mph
1500
88°F
W
12 mph
12 mph
1800
86°F
W
14 mph
14 mph
2100
86°F
W
16 mph
16 mph
June 27, saturday
0000
86°F
W
18 mph
18 mph
0300
86°F
W
16 mph
16 mph
