Which is the hottest month in Mackinac Island?

The hottest time of year in Mackinac Island is normally July. Expect maximum daytime temperatures to reach 25°C with low heat and humidity.

Which month has the most rain in Mackinac Island?

In terms of rainfall, September is usually the wettest month in Mackinac Island with 99mm on average. There are normally 13 days in September with some rain.

When is it sunniest in Mackinac Island?

The sunniest time of year in Mackinac Island is normally July with bright sunshine on average for 63% of daylight hours; that's 10 hours of sunshine per day.

When is the sea warmest in Mackinac Island?

The sea is usually at its warmest in Mackinac Island in August when the water temperature reaches 16°C.

Best time to visit Mackinac Island

Q: When is the best time to visit Mackinac Island?

The best time to visit Mackinac Island is July based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Mackinac Island by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Mackinac Island?

The best time to visit Mackinac Island is July based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0
Jan
0.5
Feb
1
Mar
1.5
Apr
2.5
May
4.5
Jun
5
Jul
4
Aug
2.5
Sep
0.5
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°C)

-4
Jan
-3
Feb
2
Mar
9
Apr
17
May
22
Jun
25
Jul
24
Aug
19
Sep
13
Oct
5
Nov
-1
Dec

Hours of Sunshine (daily)

3
Jan
4
Feb
5
Mar
7
Apr
8
May
9
Jun
10
Jul
8
Aug
6
Sep
4
Oct
2
Nov
2
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Michigan (Mackinac Island) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)