Average sea water temperature in October:
+83.2°F
| Minimum sea water temperature in October: | 86.9°F |
| Maximum sea water temperature in October: | 78.1°F |
Daily sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 84.7°F. The highest and lowest sea temperatures during the month were 86.2°F and 80.2°F.
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Monthly sea water temperature in Key West, °F
Which USA resorts have warmest sea in October?
| Place name | October 2026 | October 2025 |
|---|---|---|
| West Palm Beach | 84.9°F | 83.5°F |
| Fort Lauderdale | 84.9°F | 83.5°F |
| Key West | 84.7°F | 83.8°F |
| Miami Beach | 84.4°F | 83.4°F |
| Key Largo | 84.3°F | 83.0°F |
| Miami | 83.7°F | 82.7°F |
| Naples | 83.2°F | 81.9°F |
| Port St. Lucie | 83.1°F | 80.2°F |
| Siesta Key | 82.3°F | 80.4°F |
| Corpus Christi | 82.3°F | 82.2°F |
| Sarasota | 82.0°F | 80.2°F |
| Cape Coral | 82.0°F | 81.1°F |
| Cocoa Beach | 81.3°F | 79.2°F |
| Galveston | 81.1°F | 80.8°F |
| Houston | 80.9°F | 80.4°F |
| Tampa | 80.8°F | 79.4°F |
| Panama City Beach | 80.8°F | 79.2°F |
| Honolulu | 80.7°F | 80.7°F |
| Hawaii | 80.6°F | 80.6°F |
| Orlando | 80.5°F | 78.4°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: 00:53
October 25, sunday
0300
77°F
SW
19 mph
19 mph
0600
77°F
S
17 mph
17 mph
0900
77°F
S
17 mph
17 mph
1200
77°F
SW
16 mph
16 mph
1500
77°F
SW
13 mph
13 mph
1800
79°F
SW
15 mph
15 mph
2100
79°F
SW
25 mph
25 mph
October 26, monday
0000
77°F
SW
24 mph
24 mph
