Monroe weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Monroe in September. Check more long-term weather averages for Monroe in September before you book your next holiday to Louisiana in 2025/2026.

  • 30°C maximum daytime temperature in September in Monroe30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in September in Monroe8
    8 days with some rainfall
  • 18°C minimum night-time temperature in September in Monroe18
    18°C min night temperature
  • 12 hours of daylight per day in September in Monroe12
    12 hours of daylight per day
  • High heat & humidity in September in MonroeH
    High heat & humidity
  • 86 mm monthly rainfall in September in Monroe86
    86 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Monroe8
    8 (Very High) UV index

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

Daytime temperatures usually reach 30°C in Monroe in September with high heat and humidity, falling to 18°C at night.

How sunny is it in Monroe in September?

There are normally 8 hours of bright sunshine each day in Monroe in September - that's 66% of daylight hours.

Does it rain in Monroe in September?

There are usually 8 days with some rain in Monroe in September and the average monthly rainfall is 86mm.

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

On average less than 1 day in September in Monroe is likely to be affected by the passage of one or more tropical storms.

Monroe September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:44 18:33
Monday, 15th September 2025 05:52 18:14
Tuesday, 30th September 2025 06:02 17:54

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