Mackinac Island Weather in September

September in Mackinac Island sees daytime temperatures around 20°C (68°F) and lows of 11°C (52°F) at night. With around 107 mm (4.2 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Mackinac Island in September

Expect around 13 days of rain based on historical data, with 107 mm (4.2 in) average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Mackinac Island in September

September in Mackinac Island brings typical temperatures with highs around 20°C (68°F) and lows of 11°C (52°F). Conditions are often most pleasant around the middle of the day. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Should you favor a climate that's both dry and comfortably warm, June, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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• January
• February
• March
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• May
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• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Mackinac Island's climate page.

Mackinac Island Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 43%  

Precipitation 107 mm (4.2 in)  

Rainy days 13 days  

What to Wear in Mackinac Island in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags.

What To Do in Mackinac Island in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Mackinac Island's climate page.

More climate data for Mackinac Island

Temperature Rainfall

See the full Mackinac Island climate overview or explore weather in the United States of America.