Average sea water temperature in October:
+81.8°F
| Minimum sea water temperature in October: | 87.1°F |
| Maximum sea water temperature in October: | 75.7°F |
Daily sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 82.0°F. The highest and lowest sea temperatures during the month were 85.5°F and 79.7°F.
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| Marco Island |
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| Marco Island |
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| Marco Island |
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| Marco Island |
Monthly sea water temperature in Marco Island, °F
Which USA resorts have warmest sea in October?
| Place name | October 2025 | October 2024 |
|---|---|---|
| Key West | 83.8°F | 82.9°F |
| West Palm Beach | 83.5°F | 83.3°F |
| Fort Lauderdale | 83.5°F | 83.0°F |
| Miami Beach | 83.4°F | 83.4°F |
| Key Largo | 83.0°F | 83.1°F |
| Hialeah | 82.9°F | 83.0°F |
| Miami | 82.7°F | 82.9°F |
| Everglades | 82.5°F | 82.6°F |
| Corpus Christi | 82.2°F | 80.6°F |
| Marco Island | 82.0°F | 81.9°F |
| Naples | 81.9°F | 81.6°F |
| Kauai | 81.3°F | 79.2°F |
| Cape Coral | 81.1°F | 81.2°F |
| Galveston | 80.8°F | 78.8°F |
| Honolulu | 80.7°F | 80.6°F |
| Hawaii | 80.6°F | 80.5°F |
| Siesta Key | 80.4°F | 80.7°F |
| Houston | 80.4°F | 78.8°F |
| Hilo | 80.3°F | 79.7°F |
| Sarasota | 80.2°F | 80.5°F |
Best time for vacation in Marco Island
Marco Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Marco Island
Local time: 09:49
May 19, tuesday
1200
90°F
NW
7 mph
7 mph
1500
90°F
W
12 mph
12 mph
1800
86°F
W
11 mph
11 mph
2100
82°F
W
14 mph
14 mph
May 20, wednesday
0000
79°F
W
15 mph
15 mph
0300
77°F
W
12 mph
12 mph
0600
77°F
W
12 mph
12 mph
0900
81°F
W
14 mph
14 mph
