Bloomington weather in September 2025

Expect 79°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Bloomington in September. Check more long-term weather averages for Bloomington in September before you book your next holiday to Indiana in 2025/2026.

  • 79°F maximum daytime temperature in September in Bloomington79
    79°F max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in September in Bloomington8
    8 days with some rainfall
  • 55°F minimum night-time temperature in September in Bloomington55
    55°F min night temperature
  • 12 hours of daylight per day in September in Bloomington12
    12 hours of daylight per day
  • Low heat & humidity in September in BloomingtonL
    Low heat & humidity
  • 3.1 inches monthly rainfall in September in Bloomington3.1
    3.1 inches of monthly rainfall
  • UV (maximum) index 7 (High) in September in Bloomington7
    7 (High) UV index

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The September weather guide for Indiana (Bloomington) 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)  |  Imperial (°F)

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How hot is it in Bloomington in September?

Daytime temperatures usually reach 79°F in Bloomington in September with low heat and humidity, falling to 55°F at night.

How sunny is it in Bloomington in September?

There are normally 8 hours of bright sunshine each day in Bloomington in September - that's 64% of daylight hours.

Does it rain in Bloomington in September?

There are usually 8 days with some rain in Bloomington in September and the average monthly rainfall is 3.1 inches.

Bloomington September sunrise & sunset times

Browse the sunrise and sunset times for Bloomington in September 2025. Select a month to view Bloomington sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:15 19:16
Monday, 15th September 2025 06:28 18:54
Tuesday, 30th September 2025 06:42 18:30

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