Weather in Mackinac Island: December
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Average day temperature: | 31.7°F |
| Average night temperature: | 30.8°F | |
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Sea water temperature: | 40.0°F |
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Number of sunny days: | 4 days |
| Day length: | 8.7 - 8.9 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.6 in. | |
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forecast
| Mackinac Island |
temperature
| Mackinac Island |
Air temperature in December, °F
The highest day temperature during December of 2024 was 39°F. At the same time the lowest night temperature was 17°F. Daily and nightly averages during December were 30.6°F and 30.3°F.
Sea water temperature in Mackinac Island in December, °F
The average sea water temperature in December of 2024 was 40.3°F. The highest and lowest sea temperatures during the month were 45.3°F and 36.1°F.
Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in Mackinac Island in December is 0.6 in. Other months of the year show relatively similar values.
The average wind speed value in December is 12.9 mph It makes December one of the most windy months of the year.
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 December is: 2.4.
Best time for vacation in Mackinac Island
Mackinac Island on a weather map
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