Idaho Falls weather in September 2024

Expect 23°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Idaho Falls in September. Check more long-term weather averages for Idaho Falls in September before you book your next holiday to Idaho in 2024/2025.

  • 23°C maximum daytime temperature in September in Idaho Falls23
    23°C max day temperature
  • 10 hours of sunshine per day
  • 6 days with some rainfall in September in Idaho Falls6
    6 days with some rainfall
  • 5°C minimum night-time temperature in September in Idaho Falls5
    5°C min night temperature
  • 12 hours of daylight per day in September in Idaho Falls12
    12 hours of daylight per day
  • No heat & humidity in September in Idaho Falls0
    No heat & humidity
  • 22 mm monthly rainfall in September in Idaho Falls22
    22 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Idaho Falls6
    6 (High) UV index

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The September weather guide for Idaho (Idaho Falls) 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 Idaho Falls in September?

Daytime temperatures usually reach 23°C in Idaho Falls in September, falling to 5°C at night.

How sunny is it in Idaho Falls in September?

There are normally 10 hours of bright sunshine each day in Idaho Falls in September - that's 76% of daylight hours.

Does it rain in Idaho Falls in September?

There are usually 6 days with some rain in Idaho Falls in September and the average monthly rainfall is 22mm.

Idaho Falls September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2024 06:53 20:02
Sunday, 15th September 2024 07:08 19:37
Monday, 30th September 2024 07:25 19:10

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