Average sea water temperature in October:
+55.9°F
| Minimum sea water temperature in October: | 64.4°F |
| Maximum sea water temperature in October: | 46.8°F |
Daily sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 58.1°F. The highest and lowest sea temperatures during the month were 62.8°F and 52.2°F.
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| Mackinac Island |
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| Mackinac Island |
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| Mackinac Island |
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| Mackinac Island |
Monthly sea water temperature in Mackinac Island, °F
Which USA resorts have warmest sea in October?
| Place name | October 2025 | October 2024 |
|---|---|---|
| South Padre Island | 84.0°F | 82.4°F |
| 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 |
| Islamorada | 83.1°F | 82.9°F |
| Key Largo | 83.0°F | 83.1°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 |
| Sanibel Island | 81.6°F | 81.3°F |
| Kauai | 81.3°F | 79.2°F |
| Cape Coral | 81.1°F | 81.2°F |
| Galveston Island | 81.1°F | 79.2°F |
| Kailua Kona | 80.9°F | 80.6°F |
| Galveston | 80.8°F | 78.8°F |
| Honolulu | 80.7°F | 80.6°F |
| Hawaii | 80.6°F | 80.5°F |
Best time for vacation in Mackinac Island
Mackinac Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Mackinac Island
Local time: 08:50
December 24, wednesday
0900
21°F
SW
6 mph
6 mph
1200
25°F
NW
6 mph
6 mph
1500
28°F
NW
6 mph
6 mph
1800
30°F
NW
4 mph
4 mph
2100
32°F
NW
5 mph
5 mph
December 25, thursday
0000
32°F
NE
4 mph
4 mph
0300
34°F
SE
9 mph
9 mph
0600
34°F
SE
14 mph
14 mph
