Mackinac Island weather in September 2020

  • 19°C maximum daytime temperature in September in Mackinac Island19
    19°C max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in September in Mackinac Island13
    13 days with some rainfall
  • 8°C minimum night-time temperature in September in Mackinac Island8
    8°C min night temperature
  • 12 hours of daylight per day in September in Mackinac Island12
    12 hours of daylight per day
  • No heat & humidity in September in Mackinac Island0
    No heat & humidity
  • 99 mm monthly rainfall in September in Mackinac Island99
    99 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Mackinac Island5
    5 (Moderate) UV index
  • 15°C sea temperature in September in Mackinac Island15
    15°C sea temperature
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The September weather guide for Mackinac Island, Michigan 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.

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How hot is it in Mackinac Island in September?

Daytime temperatures usually reach 19°C in Mackinac Island in September, falling to 8°C at night.

How sunny is it in Mackinac Island in September?

There are normally 6 hours of bright sunshine each day in Mackinac Island in September - that's 45% of daylight hours.

How warm is the sea around Mackinac Island in September?

The average sea temperature around Mackinac Island in September is 15°C.

Does it rain in Mackinac Island in September?

There are usually 13 days with some rain in Mackinac Island in September and the average monthly rainfall is 99mm.

Mackinac Island sunrise & sunset times for September 2020

Browse the sunrise & sunset times for Mackinac Island in September 2020. Select a month to view Mackinac Island sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2020 07:00 20:16
Tuesday, 15th September 2020 07:17 19:49
Wednesday, 30th September 2020 07:36 19:19
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where's hot in Michigan in September?

Below are average maximum temperatures at popular destinations in Michigan in September. Select a destination to see more weather parameters.

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