Climate and monthly weather forecast
Mackinac Island, MI

A tranquil neighborhood with homes and a church in a scenic natural park in Mackinac Island, Michigan
A tranquil neighborhood with homes and a church in a scenic natural park in Mackinac Island, Michigan

Weather in January

January, like December, is a freezing cold winter month in Mackinac Island, Michigan, with an average temperature varying between 23.4°F (-4.8°C) and 14.7°F (-9.6°C). With an average high-temperature of 23.4°F (-4.8°C) and an average low-temperature of 14.7°F (-9.6°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Mackinac Island, Michigan, with an average temperature fluctuating between 24.3°F (-4.3°C) and 14.4°F (-9.8°C). In February, the average high-temperature is essentially the same as in January - a still subzero cold 24.3°F (-4.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a cold month in Mackinac Island, Michigan, with an average temperature ranging between min 22.3°F (-5.4°C) and max 32.7°F (0.4°C). In Mackinac Island, the average high-temperature in March marginally rises from a subzero cold 24.3°F (-4.3°C) in February to a cold 32.7°F (0.4°C). Weather in March »

Weather in April

April, like March, in Mackinac Island, Michigan, is a wintry spring month, with an average temperature fluctuating between 42.3°F (5.7°C) and 31.8°F (-0.1°C). In Mackinac Island, the average high-temperature in April rises from 32.7°F (0.4°C) in March to a still wintry 42.3°F (5.7°C). Weather in April »

Weather in May

May, the last month of the spring in Mackinac Island, is a fresh month, with an average temperature fluctuating between 55°F (12.8°C) and 41.4°F (5.2°C). In May, the average high-temperature increases from a wintry 42.3°F (5.7°C) in April to a fresh 55°F (12.8°C). Weather in May »

Weather in June

June, the first month of the summer in Mackinac Island, is an enjoyable month, with temperature in the range of an average low of 49.5°F (9.7°C) and an average high of 63.5°F (17.5°C). In June, the average high-temperature slightly increases from a fresh 55°F (12.8°C) in May to an enjoyable 63.5°F (17.5°C). Weather in June »

Weather in July

July in Mackinac Island, Michigan, is a pleasant summer month, with an average temperature ranging between min 57.6°F (14.2°C) and max 71.4°F (21.9°C). The warmest month is July, with an average high-temperature of 71.4°F (21.9°C) and an average low-temperature of 57.6°F (14.2°C). Weather in July »

Weather in August

The last month of the summer, August, is another pleasant month in Mackinac Island, Michigan, with temperature in the range of an average low of 58.6°F (14.8°C) and an average high of 71.1°F (21.7°C). In August, the average high-temperature is almost the same as in July - a still pleasant 71.1°F (21.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in Mackinac Island, Michigan, with temperature in the range of an average high of 64.8°F (18.2°C) and an average low of 53.1°F (11.7°C). In September, the average high-temperature slightly decreases from a pleasant 71.1°F (21.7°C) in August to an enjoyable 64.8°F (18.2°C). Weather in September »

Weather in October

October, the same as September, is a cool autumn month in Mackinac Island, Michigan, with an average temperature varying between 52.3°F (11.3°C) and 43.7°F (6.5°C). In Mackinac Island, the average high-temperature in October drops from a comfortable 64.8°F (18.2°C) in September to a cool 52.3°F (11.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Mackinac Island, is also a wintry month, with an average temperature ranging between max 40.3°F (4.6°C) and min 32.9°F (0.5°C). In Mackinac Island, the average high-temperature in November decreases from a cool 52.3°F (11.3°C) in October to a cold 40.3°F (4.6°C). Weather in November »

Weather in December

December, the first month of the winter in Mackinac Island, is also a subzero cold month, with temperature in the range of an average low of 23°F (-5°C) and an average high of 30.2°F (-1°C). In December, the average high-temperature decreases from a cold 40.3°F (4.6°C) in November to a freezing cold 30.2°F (-1°C). Weather in December »
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FAQ

What is the coldest month in Mackinac Island?

With an average high-temperature of 23.4°F (-4.8°C) and an average low-temperature of 14.7°F (-9.6°C), January is the coldest month in Mackinac Island, Michigan.

What are the most humid months in Mackinac Island?

January and February, with an average relative humidity of 89%, are most humid months in Mackinac Island, Michigan.

What is the driest month in Mackinac Island?

The month with the least rainfall is January, when the rain falls for 5.8 days and typically collects 1.3" (33mm) of precipitation.

How much does it rain in Mackinac Island?

Throughout the year, in Mackinac Island, there are 131 rainfall days, and 21.22" (539mm) of precipitation is accumulated.

When does it snow in Mackinac Island?

Months with snowfall are January through May, October through December.

What is the snowiest month in Mackinac Island?

January is the month with the most snowfall. Snow falls for 21.9 days and accumulates 5.91" (150mm) of snow.

How much does it snow in Mackinac Island?

Throughout the year, in Mackinac Island, Michigan, there are 93.6 snowfall days, and 27.91" (709mm) of snow is accumulated.

What is the month with the least sunshine in Mackinac Island?

January has the least sunshine of the year in Mackinac Island, Michigan, with an average of 1.9h of sunshine.

What is the month with the lowest UV index in Mackinac Island?

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Mackinac Island, Michigan.

What months are the ocean coldest in Mackinac Island?

February through April, with an average ocean temperature of 35.6°F (2°C), are months with the coldest seawater.

When is Daylight Saving Time (DST) in Mackinac Island?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Mackinac Island, Michigan, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Mackinac Island?

May is the least humid month in Mackinac Island, with an average relative humidity of 75%.

When it does not snow in Mackinac Island?

June through September are months without snowfall.

When are the longest days in Mackinac Island?

The month with the longest days is June, with an average of 15h and 40min of daylight.

What is the month with the highest UV index in Mackinac Island?

June through August, with an average maximum UV index of 5, are months with the highest UV index in Mackinac Island, Michigan.

What is the warmest month in Mackinac Island?

July is the warmest month in Mackinac Island, Michigan, with an average high-temperature of 71.4°F (21.9°C) and an average low-temperature of 57.6°F (14.2°C).

What month has the most sunshine in Mackinac Island?

With an average of 10.1h of sunshine, July has the most sunshine of the year.

What month is the ocean warmest in Mackinac Island?

With an average ocean temperature of 60.8°F (16°C), August is the month with the warmest seawater.

What is the wettest month in Mackinac Island?

October is the month with the most rainfall in Mackinac Island, Michigan. Rain falls for 16.5 days and accumulates 2.72" (69mm) of precipitation.

What is the month with the shortest days in Mackinac Island?

With an average of 8h and 44min of daylight, December has the shortest days of the year.

Average temperature
Mackinac Island, MI

Average temperature - Mackinac Island, MI

The warmest month (with the highest average high temperature) is July (71.4°F).
The month with the lowest average high temperature is January (23.4°F).

The month with the highest average low temperature is August (58.6°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).

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Average pressure
Mackinac Island, MI

Average pressure - Mackinac Island, MI

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Mackinac Island, MI

Average wind speed - Mackinac Island, MI

The windiest months (with the highest average wind speed) are November and December (10.9mph).
The calmest months (with the lowest average wind speed) are June and July (7.6mph).

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Average humidity
Mackinac Island, MI

Average humidity - Mackinac Island, MI

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (75%).

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Average rainfall
Mackinac Island, MI

Average rainfall - Mackinac Island, MI

The wettest month (with the highest rainfall) is October (2.72").
The driest month (with the least rainfall) is January (1.3").

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Average rainfall days
Mackinac Island, MI

Average rainfall days - Mackinac Island, MI

The month with the highest number of rainy days is October (16.5 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall
Mackinac Island, MI

Average snowfall - Mackinac Island, MI

The month with the highest snowfall is January (5.91").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Mackinac Island, MI

Average snowfall days - Mackinac Island, MI

The month with the highest number of snowfall days is January (21.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature
Mackinac Island, MI

Average sea temperature - Mackinac Island, MI

The best month for swimming (with the highest average sea temperature) is August (61°F).
The coldest months (with the lowest average sea temperature) are February, March and April (36°F).

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Average daylight / Average sunshine
Mackinac Island, MI

Average daylight / Average sunshine - Mackinac Island, MI

The month with the longest days is June (Average daylight: 15h and 40min).
The month with the shortest days is December (Average daylight: 8h and 44min).

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).

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Average sunshine days
Mackinac Island, MI

Average sunshine days - Mackinac Island, MI

The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is January (7.1 days).

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Average UV index
Mackinac Island, MI

Average UV index - Mackinac Island, MI

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

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Average visibility
Mackinac Island, MI

Average visibility - Mackinac Island, MI

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

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