Lafayette weather in September 2025

Expect 88°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Lafayette in September. Check more long-term weather averages for Lafayette in September before you book your next holiday to Louisiana in 2025/2026.

  • 88°F maximum daytime temperature in September in Lafayette88
    88°F max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in September in Lafayette9
    9 days with some rainfall
  • 68°F minimum night-time temperature in September in Lafayette68
    68°F min night temperature
  • 12 hours of daylight per day in September in Lafayette12
    12 hours of daylight per day
  • High heat & humidity in September in LafayetteH
    High heat & humidity
  • 5.0 inches monthly rainfall in September in Lafayette5.0
    5.0 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Lafayette9
    9 (Very High) UV index

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The September weather guide for Louisiana (Lafayette) 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 Lafayette in September?

Daytime temperatures usually reach 88°F in Lafayette in September with high heat and humidity, falling to 68°F at night.

How sunny is it in Lafayette in September?

There are normally 8 hours of bright sunshine each day in Lafayette in September - that's 63% of daylight hours.

Does it rain in Lafayette in September?

There are usually 9 days with some rain in Lafayette in September and the average monthly rainfall is 5.0 inches.

What is the chance of a hurricane in Lafayette in September?

On average 1.2 days in September in Lafayette are likely to be affected by the passage of one or more tropical storms.

Lafayette September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:45 18:30
Monday, 15th September 2025 05:53 18:13
Tuesday, 30th September 2025 06:01 17:54

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