Kentucky weather in September 2025

Expect 27°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Kentucky in September. Check more long-term weather averages for Kentucky in September before you book your next holiday to Kentucky in 2025/2026.

  • 27°C maximum daytime temperature in September in Kentucky (Louisville)27
    27°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in September in Kentucky (Louisville)8
    8 days with some rainfall
  • 14°C minimum night-time temperature in September in Kentucky (Louisville)14
    14°C min night temperature
  • 12 hours of daylight per day in September in Kentucky (Louisville)12
    12 hours of daylight per day
  • Low heat & humidity in September in Kentucky (Louisville)L
    Low heat & humidity
  • 80 mm monthly rainfall in September in Kentucky (Louisville)80
    80 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Kentucky (Louisville)7
    7 (High) UV index

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The September weather guide for Kentucky (Louisville) 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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Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Kentucky in September?

Daytime temperatures usually reach 27°C in Louisville, Kentucky in September with low heat and humidity, falling to 14°C at night.

How sunny is it in Kentucky in September?

There are normally 8 hours of bright sunshine each day in Louisville, Kentucky in September - that's 62% of daylight hours.

Does it rain in Kentucky in September?

There are usually 8 days with some rain in Louisville, Kentucky in September and the average monthly rainfall is 80mm.

Kentucky September sunrise & sunset times

Browse the sunrise and sunset times for Kentucky in September 2025. Select a month to view Kentucky sunrise and sunset times for the next 12 months. The Kentucky sunrise and sunset times shown below are for Louisville.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:13 19:12
Monday, 15th September 2025 06:25 18:51
Tuesday, 30th September 2025 06:38 18:27

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