Mackinac Island
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Mackinac Island Weather in May

May in Mackinac Island sees daytime temperatures around 16°C (61°F) and lows of 6°C (43°F) at night. With around 64 mm (2.5 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Mackinac Island in May

Historically, approximately 12 days this month are expected to have rain, averaging 64 mm (2.5 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Mackinac Island in May

May in Mackinac Island brings typical temperatures with highs around 16°C (61°F) and lows of 6°C (43°F). Conditions are often most pleasant around the middle of the day. Nights drop to 6°C (43°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

For Mackinac Island itself, June, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Mackinac Island Temperature in May

Min Temperature
6°C (43°F)
Max Temperature
16°C (61°F)
Chance of Rain
40%
Precipitation
64 mm (2.5 in)
Rainy days
12 days

Mackinac Island Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Mackinac Island - and find the best time to visit.

Best Places in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Mackinac Island in May

The weather can be unpredictable in May, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Rain is likely on several days, so bring a good rain jacket.

What To Do in Mackinac Island in May

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

  • Cycling
    6/10
  • Walking
    6/10
  • Barbeque
    5/10
  • Camping
    4/10
  • Outdoor sports
    10/10

Mackinac Island 3-Day Forecast

More climate data for Mackinac Island

Popular in May

Where to go in May - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.