Weather in Mackinac Island: October
![]() |
Average day temperature: | 52.2°F |
Average night temperature: | 49.0°F | |
![]() |
Sea water temperature: | 55.5°F |
![]() |
Number of sunny days: | 8 days |
Day length: | 10.1 - 11.7 hours | |
![]() |
Number of rainy days: | 2 days |
Precipitation totals: | 1.4 in. | |
more information |
forecast
Mackinac Island |
temperature
Mackinac Island |
Air temperature in October, °F
Day temperature | Night temperature |
The highest day temperature during October of 2024 was 62°F. At the same time the lowest night temperature was 40°F. Daily and nightly averages during October were 54.1°F and 52.1°F.
Sea water temperature in Mackinac Island in October, °F
The average sea water temperature in October of 2024 was 56.5°F. The highest and lowest sea temperatures during the month were 64.4°F and 50.5°F.
Sunny days | |
Partly cloudy days | |
Cloudy days |
Mostly all days in October are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in October, in.
Precipitation total value in Mackinac Island in October is 1.4 in. Other months of the year show relatively similar values.
The average wind speed value in October is 11.2 mph
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in October is: 5.4.
Best time for vacation in Mackinac Island
Mackinac Island on a weather map

4 mph

3 mph

4 mph

4 mph

2 mph

2 mph

4 mph

4 mph