Mackinac Island weather in July 2025

Expect 25°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Mackinac Island in July. Check more long-term weather averages for Mackinac Island in July before you book your next holiday to Michigan in 2025/2026.

  • 25°C maximum daytime temperature in July in Mackinac Island25
    25°C max day temperature
  • 10 hours of sunshine per day
  • 10 days with some rainfall in July in Mackinac Island10
    10 days with some rainfall
  • 12°C minimum night-time temperature in July in Mackinac Island12
    12°C min night temperature
  • 15 hours of daylight per day in July in Mackinac Island15
    15 hours of daylight per day
  • Low heat & humidity in July in Mackinac IslandL
    Low heat & humidity
  • 71 mm monthly rainfall in July in Mackinac Island71
    71 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in July in Mackinac Island8
    8 (Very High) UV index
  • 12°C sea temperature in July in Mackinac Island12
    12°C sea temperature

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The July weather guide for Michigan (Mackinac Island) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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

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How hot is it in Mackinac Island in July?

Daytime temperatures usually reach 25°C in Mackinac Island in July with low heat and humidity, falling to 12°C at night.

How sunny is it in Mackinac Island in July?

There are normally 10 hours of bright sunshine each day in Mackinac Island in July - that's 63% of daylight hours.

How warm is the sea around Mackinac Island in July?

The average sea temperature around Mackinac Island in July is 12°C.

Does it rain in Mackinac Island in July?

There are usually 10 days with some rain in Mackinac Island in July and the average monthly rainfall is 71mm.

Mackinac Island July sunrise & sunset times

Browse the sunrise and sunset times for Mackinac Island in July 2025. Select a month to view Mackinac Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 04:53 20:32
Wednesday, 16th July 2025 05:04 20:24
Thursday, 31st July 2025 05:21 20:08

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