Average sea water temperature in April:
+78.7°F
| Minimum sea water temperature in April: | 83.8°F |
| Maximum sea water temperature in April: | 72.5°F |
Daily sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 78.2°F. The highest and lowest sea temperatures during the month were 80.8°F and 76.3°F.
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Monthly sea water temperature in Key West, °F
Which USA resorts have warmest sea in April?
| Place name | April 2026 | April 2025 |
|---|---|---|
| Everglades | 78.6°F | 78.8°F |
| Key Largo | 78.2°F | 78.5°F |
| West Palm Beach | 78.2°F | 78.3°F |
| Key West | 78.2°F | 78.0°F |
| Fort Lauderdale | 78.1°F | 78.0°F |
| Miami Beach | 78.0°F | 78.3°F |
| Hialeah | 77.7°F | 77.9°F |
| Miami | 77.5°F | 77.9°F |
| Hilo | 77.0°F | 77.2°F |
| Honolulu | 76.5°F | 77.4°F |
| Cape Coral | 76.4°F | 77.2°F |
| Marco Island | 76.3°F | 77.3°F |
| Hawaii | 76.2°F | 77.3°F |
| Maui | 75.9°F | 76.6°F |
| Kauai | 75.9°F | 74.9°F |
| Naples | 75.8°F | 77.0°F |
| Tampa | 75.3°F | 76.6°F |
| St. Petersburg | 75.2°F | 76.3°F |
| Cocoa Beach | 75.0°F | 75.1°F |
| Corpus Christi | 75.0°F | 74.7°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: 18:43
May 16, saturday
2100
82°F
W
15 mph
15 mph
May 17, sunday
0000
82°F
W
17 mph
17 mph
0300
82°F
NW
16 mph
16 mph
0600
81°F
W
13 mph
13 mph
0900
82°F
W
16 mph
16 mph
1200
82°F
W
17 mph
17 mph
1500
82°F
W
16 mph
16 mph
1800
82°F
W
18 mph
18 mph
