Alpena weather in September 2024

Expect 20°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Alpena in September. Check more long-term weather averages for Alpena in September before you book your next holiday to Michigan in 2024/2025.

  • 20°C maximum daytime temperature in September in Alpena20
    20°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in September in Alpena12
    12 days with some rainfall
  • 8°C minimum night-time temperature in September in Alpena8
    8°C min night temperature
  • 12 hours of daylight per day in September in Alpena12
    12 hours of daylight per day
  • No heat & humidity in September in Alpena0
    No heat & humidity
  • 79 mm monthly rainfall in September in Alpena79
    79 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Alpena5
    5 (Moderate) UV index
  • 16°C sea temperature in September in Alpena16
    16°C sea temperature

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The September weather guide for Michigan (Alpena) 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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More about the USA

How hot is it in Alpena in September?

Daytime temperatures usually reach 20°C in Alpena in September, falling to 8°C at night.

How sunny is it in Alpena in September?

There are normally 6 hours of bright sunshine each day in Alpena in September - that's 50% of daylight hours.

How warm is the sea around Alpena in September?

The average sea temperature around Alpena in September is 16°C.

Does it rain in Alpena in September?

There are usually 12 days with some rain in Alpena in September and the average monthly rainfall is 79mm.

Alpena September sunrise & sunset times

Browse the sunrise and sunset times for Alpena in September 2024. Select a month to view Alpena sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2024 06:56 20:10
Sunday, 15th September 2024 07:13 19:44
Monday, 30th September 2024 07:31 19:15

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