Average sea water temperature in October:
+83.0°F
| Minimum sea water temperature in October: | 87.1°F |
| Maximum sea water temperature in October: | 76.5°F |
Daily sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 85.3°F. The highest and lowest sea temperatures during the month were 86.4°F and 83.8°F.
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| Key Largo |
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| Key Largo |
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Monthly sea water temperature in Key Largo, °F
Which USA resorts have warmest sea in October?
| Place name | October 2026 | October 2025 |
|---|---|---|
| West Palm Beach | 85.4°F | 83.5°F |
| Key West | 85.4°F | 83.8°F |
| Fort Lauderdale | 85.3°F | 83.5°F |
| Key Largo | 85.3°F | 83.0°F |
| Miami Beach | 84.8°F | 83.4°F |
| Miami | 84.3°F | 82.7°F |
| Naples | 84.1°F | 81.9°F |
| Port St. Lucie | 84.0°F | 80.2°F |
| Corpus Christi | 83.8°F | 82.2°F |
| Siesta Key | 83.6°F | 80.4°F |
| Cape Coral | 83.4°F | 81.1°F |
| Sarasota | 83.4°F | 80.2°F |
| Galveston | 83.1°F | 80.8°F |
| Houston | 82.6°F | 80.4°F |
| Cocoa Beach | 82.5°F | 79.2°F |
| Tampa | 82.5°F | 79.4°F |
| Clearwater Beach | 82.0°F | 78.9°F |
| Panama City Beach | 81.9°F | 79.2°F |
| Fort Walton Beach | 81.7°F | 79.2°F |
| St. George Island | 81.6°F | 77.7°F |
Best time for vacation in Key Largo
Key Largo on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Key Largo
Local time: 04:21
October 15, thursday
0600
82°F
NW
11 mph
11 mph
0900
82°F
W
13 mph
13 mph
1200
84°F
W
13 mph
13 mph
1500
82°F
W
12 mph
12 mph
1800
82°F
W
13 mph
13 mph
2100
82°F
W
17 mph
17 mph
October 16, friday
0000
82°F
W
17 mph
17 mph
0300
82°F
W
16 mph
16 mph
