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Michigan weather in September 2021
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Below are average maximum temperatures at popular destinations in Michigan in September. Select a destination to see more weather parameters.
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The September weather guide for 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.
How hot is it in Michigan in September?
Daytime temperatures usually reach 23°C in Detroit, Michigan in September, falling to 13°C at night.
How sunny is it in Michigan in September?
There are normally 7 hours of bright sunshine each day in Detroit, Michigan in September - that's 54% of daylight hours.
How warm is the sea around Michigan in September?
The average sea temperature around Detroit, Michigan in September is 20°C.
Does it rain in Michigan in September?
There are usually 10 days with some rain in Detroit, Michigan in September and the average monthly rainfall is 73mm.
Michigan sunrise & sunset times for September 2021
Browse the sunrise & sunset times for Michigan in September 2021. Select a month to view Michigan sunrise & sunset times for the next twelve months. The Michigan sunrise & sunset times shown below are for Detroit.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st September 2021||06:58||20:06|
|Wednesday, 15th September 2021||07:12||19:41|
|Thursday, 30th September 2021||07:29||19:15|
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Metric (°C / mm) | Imperial (°F / inches)
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More Michigan destinations
- Grand Marais
- Iron Mountain
- Sault Ste. Marie
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