July 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 July

July signifies the height of summer on Mackinac Island. The Island experiences its warmest weather, an average high reaching up to 71.4°F (21.9°C). The days are the longest and the sunshine reaches its zenith. Despite the scorching sun, generous rain ensures the greenery remains hydrated and in full bloom. The sultry weather coupled with the beautiful scenery makes this month a peak time for outdoor activities.

Temperature

The warmest month in Mackinac Island 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).

Humidity

The average relative humidity in July is 78%.

Rainfall

In Mackinac Island, during July, the rain falls for 13 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, there are 131 rainfall days, and 21.22" (539mm) of precipitation is accumulated.

Snowfall

In Mackinac Island, snow does not fall in June through September.

Ocean temperature

In July, the average ocean temperature in Mackinac Island, Michigan, is 53.6°F (12°C).
Note: Swimming in 53.6°F (12°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In July, the average length of the day in Mackinac Island is 15h and 19min.
On the first day of the month, sunrise is at 5:52 am and sunset at 9:32 pm. On the last day of July, sunrise is at 6:21 am and sunset at 9:08 pm EDT.

Sunshine

The month with the most sunshine in Mackinac Island is July, with an average of 10.1h of sunshine.

UV index

The months with the highest UV index in Mackinac Island are June through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 5 in July translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest in Mackinac Island?

In Mackinac Island, July is identified by the average highest temperatures, reaching a peak of 71.4°F (21.9°C) and a low of 57.6°F (14.2°C).

What is the average July temperature in Mackinac Island?

The average high-temperature and low-temperature in Mackinac Island during July are 71.4°F (21.9°C) and 57.6°F (14.2°C) respectively.

What is the average humidity in July in Mackinac Island?

The average relative humidity in July in Mackinac Island is 78%.

How much does it rain in Mackinac Island in July?

In Mackinac Island, in July, during 13 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When it does not snow in Mackinac Island?

In Mackinac Island, Michigan, snow does not fall in June through September.

What is the ocean temperature in July in Mackinac Island?

In July, the average ocean temperature in Mackinac Island is 53.6°F (12°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in July in Mackinac Island?

In Mackinac Island, the average day length in July is 15h and 19min.

When are sunrise and sunset in July in Mackinac Island?

On the first day of July in Mackinac Island, sunrise is at 5:52 am and sunset at 9:32 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 9:08 pm EDT.

What month has the most sunshine in Mackinac Island?

July has the most sunshine of the year in Mackinac Island, Michigan, with an average of 10.1h of sunshine.

How many hours of sunshine does Mackinac Island have in July?

The average sunshine duration in July in Mackinac Island is 10.1h.

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

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

What is the UV index reading in July in Mackinac Island?

In July, the average daily maximum UV index in Mackinac Island, Michigan, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Mackinac Island, MI

Average temperature in July - Mackinac Island, MI
  • Average high temperature in July: 71.4°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 July: 57.6°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).

Average pressure in July
Mackinac Island, MI

Average pressure in July - Mackinac Island, MI
  • Average pressure in July: 29.94"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).

Average wind speed in July
Mackinac Island, MI

Average wind speed in July - Mackinac Island, MI
  • Average wind speed in July: 7.6mph

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).

Average humidity in July
Mackinac Island, MI

Average humidity in July - Mackinac Island, MI
  • Average humidity in July: 78%

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

Average rainfall in July
Mackinac Island, MI

Average rainfall in July - Mackinac Island, MI
  • Average rainfall in July: 1.46"

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

Average rainfall days in July
Mackinac Island, MI

Average rainfall days in July - Mackinac Island, MI
  • Average rainfall days in July: 13 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).

Average snowfall in July
Mackinac Island, MI

Average snowfall in July - Mackinac Island, MI
  • Average snowfall in July: 0"

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

Average snowfall days in July
Mackinac Island, MI

Average snowfall days in July - Mackinac Island, MI
  • Average snowfall days in July: 0 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).

Average sea temperature in July
Mackinac Island, MI

Average sea temperature in July - Mackinac Island, MI
  • Average sea temperature in July: 54°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).

Average daylight in July /
Average sunshine in July
Mackinac Island, MI

Average daylight in July / Average sunshine in July - Mackinac Island, MI
  • Average daylight in July: 15h and 2min

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 July: 10h and 1min

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).

Average sunshine days in July
Mackinac Island, MI

Average sunshine days in July - Mackinac Island, MI
  • Average sunshine days in July: 16.3 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).

Average UV index in July
Mackinac Island, MI

Average UV index in July - Mackinac Island, MI
  • Average UV index in July: 5

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).

Average cloud cover in July
Mackinac Island, MI

Average cloud cover in July - Mackinac Island, MI
  • Average cloud cover in July: 32

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).

Average visibility in July
Mackinac Island, MI

Average visibility in July - Mackinac Island, MI
  • Average visibility in July: 6mi

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).

Mackinac Island, Michigan, USA

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