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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Monthly sea water temperature in Key West, °F
Which USA resorts have warmest sea in March?
| Place name | March 2026 | March 2025 |
|---|---|---|
| Everglades | 77.4°F | 74.4°F |
| Kailua Kona | 77.2°F | 77.7°F |
| West Palm Beach | 77.1°F | 75.8°F |
| Key Largo | 76.8°F | 75.1°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 |
| Hialeah | 76.1°F | 74.6°F |
| Miami | 76.0°F | 74.4°F |
| Kahului | 75.7°F | 76.3°F |
| Maui | 75.5°F | 76.0°F |
| Oahu | 74.9°F | 75.7°F |
| Cape Coral | 73.9°F | 71.7°F |
| Marco Island | 73.5°F | 71.8°F |
| Naples | 72.6°F | 71.4°F |
| Corpus Christi | 71.9°F | 67.0°F |
| Tampa | 71.7°F | 69.3°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: 15:37
April 26, sunday
1800
79°F
SE
2 mph
2 mph
2100
77°F
SE
6 mph
6 mph
April 27, monday
0000
77°F
SW
6 mph
6 mph
0300
77°F
SW
4 mph
4 mph
0600
77°F
S
6 mph
6 mph
0900
77°F
SW
5 mph
5 mph
1200
77°F
SW
6 mph
6 mph
1500
77°F
S
6 mph
6 mph
