January weather forecast
Mackinac Island, MI

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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 brings a decidedly winter pattern to Mackinac Island, Michigan as the first month of the year. A characteristic cold, with temperatures dropping to an average lower limit of 14.7°F (-9.6°C), dominates this month. Despite the chill in the air, the island is shrouded in considerable cloud cover, significantly reducing the available daylight. Snowfall is routine, creating a picturesque icy wonderland. The island quietly welcomes the New Year beneath a sweeping blanket of white.

Temperature

January is the coldest month in Mackinac Island, exhibiting average temperatures of 23.4°F (-4.8°C) at the peak and 14.7°F (-9.6°C) at the base.

Humidity

January and February, with an average relative humidity of 89%, are the most humid months.

Rainfall

January is the month with the least rainfall. Rain falls for 5.8 days and accumulates 1.3" (33mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Mackinac Island. The month with the most snowfall is January, when snow falls for 21.9 days and typically aggregates up to 5.91" (150mm) of snow.

Ocean temperature

In January, the average ocean temperature is 37.4°F (3°C).
Note: During swimming activities, this is a serious life-threatening hazard. Rapid loss of control over breathing impairs cognitive abilities. A specialized swimsuit is essential to limit thermal wastage.

Daylight

In January, the average length of the day is 9h and 9min.
On the first day of the month, sunrise is at 8:19 am and sunset at 5:04 pm. On the last day of January, in Mackinac Island, sunrise is at 8:01 am and sunset at 5:42 pm EST.

Sunshine

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

UV index

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In January, the maximum UV index of 1 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What month is the coldest in Mackinac Island?

In Mackinac Island, the average lowest temperatures are observed in January, with a high of 23.4°F (-4.8°C) and a low of 14.7°F (-9.6°C).

How cold is it in Mackinac Island in January?

The average high-temperature and low-temperature in Mackinac Island, Michigan, during January are 23.4°F (-4.8°C) and 14.7°F (-9.6°C) respectively.

What is the most humid month in Mackinac Island?

The months with the highest humidity are January and February, with an average relative humidity of 89%.

What is the average humidity in January in Mackinac Island?

In January, the average relative humidity in Mackinac Island is 89%.

What is the driest month in Mackinac Island?

The month with the least rainfall in Mackinac Island 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 in January?

In Mackinac Island, in January, it is raining for 5.8 days, with typically 1.3" (33mm) of accumulated precipitation.

When does it snow the most in Mackinac Island?

The month with the most snowfall in Mackinac Island is January, when snow falls for 21.9 days and typically aggregates up to 5.91" (150mm) of snow.

How many days does it snow in January in Mackinac Island?

In January, in Mackinac Island, Michigan, it is snowing for 21.9 days. Throughout January, 5.91" (150mm) of snow is accumulated.

How cold is the water in January in Mackinac Island?

In Mackinac Island, the average seawater temperature in January is 37.4°F (3°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

How many hours of daylight does Mackinac Island have in January?

The average day length in January in Mackinac Island is 9h and 9min.

What time are sunrise and sunset in January in Mackinac Island?

On the first day of January in Mackinac Island, sunrise is at 8:19 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:42 pm EST.

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.

How long on average sun shines in January in Mackinac Island?

In Mackinac Island, the average sunshine duration in January is 1.9h.

What are the months 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.

What is the UV index intensity in January in Mackinac Island?

In Mackinac Island, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
30.2°F -1°C
23.4°F -4.8°C
24.3°F -4.3°C
Average low temperature
23°F -5°C
14.7°F -9.6°C
14.4°F -9.8°C
Average pressure
30.02" 763mmHg
30.01" 762mmHg
30.03" 763mmHg
Average wind speed
10.9mph 17.5km/h
10.4mph 16.7km/h
10mph 16.1km/h
Average max. wind speed
11.6mph 18.7km/h
11.1mph 17.9km/h
10.7mph 17.2km/h
Average wind speed gusts
16mph 25.7km/h
15.5mph 24.9km/h
15.3mph 24.6km/h
Average humidity
85%
89%
89%
Average rainfall
1.73" 44mm
1.3" 33mm
1.34" 34mm
Average rainfall days
9.2
5.8
5.3
Average snowfall
5.59" 142mm
5.91" 150mm
5.67" 144mm
Average snowfall days
19.2
21.9
18.3
Average sea temperature
39°F 3.9°C
37°F 2.8°C
36°F 2.2°C
Average daylight
8h 4min
9h 1min
10h 2min
Average sunshine
2h 2min
1h 5min
2h 4min
Average sunshine days
7.6
7.1
8.6
Average UV index
1
1
1
Average cloud cover
75%
80%
76%
Average visibility
5mi 8km
5mi 8km
5mi 8km

Average temperature in January
Mackinac Island, MI

Average temperature in January - Mackinac Island, MI
  • Average high temperature in January: 23.4°F

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).

  • Average low temperature in January: 14.7°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 in January
Mackinac Island, MI

Average pressure in January - Mackinac Island, MI
  • Average pressure in January: 30.01"Hg

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 in January
Mackinac Island, MI

Average wind speed in January - Mackinac Island, MI
  • Average wind speed in January: 10.4mph

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 in January
Mackinac Island, MI

Average humidity in January - Mackinac Island, MI
  • Average humidity in January: 89%

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 in January
Mackinac Island, MI

Average rainfall in January - Mackinac Island, MI
  • Average rainfall in January: 1.3"

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 in January
Mackinac Island, MI

Average rainfall days in January - Mackinac Island, MI
  • Average rainfall days in January: 5.8 days

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 in January
Mackinac Island, MI

Average snowfall in January - Mackinac Island, MI
  • Average snowfall in January: 5.91"

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 in January
Mackinac Island, MI

Average snowfall days in January - Mackinac Island, MI
  • Average snowfall days in January: 21.9 days

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 in January
Mackinac Island, MI

Average sea temperature in January - Mackinac Island, MI
  • Average sea temperature in January: 37°F

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 in January /
Average sunshine in January
Mackinac Island, MI

Average daylight in January / Average sunshine in January - Mackinac Island, MI
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in January: 1h and 5min

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 in January
Mackinac Island, MI

Average sunshine days in January - Mackinac Island, MI
  • Average sunshine days in January: 7.1 days

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 in January
Mackinac Island, MI

Average UV index in January - Mackinac Island, MI
  • Average UV index in January: 1

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 cloud cover in January
Mackinac Island, MI

Average cloud cover in January - Mackinac Island, MI
  • Average cloud cover in January: 80

The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in January
Mackinac Island, MI

Average visibility in January - Mackinac Island, MI
  • Average visibility in January: 5mi

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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Mackinac Island, Michigan, USA

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