Gainesville weather in September 2025

Expect 31°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Gainesville in September based on long-term weather averages. There is usually 12 days with some rainfall and 140 mm of average monthly rainfall in September.

  • 31°C maximum daytime temperature in September in Gainesville31
    31°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in September in Gainesville12
    12 days with some rainfall
  • 20°C minimum night-time temperature in September in Gainesville20
    20°C min night temperature
  • 12 hours of daylight per day in September in Gainesville12
    12 hours of daylight per day
  • High heat & humidity in September in GainesvilleH
    High heat & humidity
  • 140 mm monthly rainfall in September in Gainesville140
    140 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Gainesville9
    9 (Very High) UV index

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The September weather guide for Florida (Gainesville) 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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More about Florida

How hot is it in Gainesville in September?

Daytime temperatures usually reach 31°C in Gainesville in September with high heat and humidity, falling to 20°C at night.

How sunny is it in Gainesville in September?

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

Does it rain in Gainesville in September?

There are usually 12 days with some rain in Gainesville in September and the average monthly rainfall is 140mm.

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

On average 1.1 days in September in Gainesville are likely to be affected by the passage of one or more tropical storms.

Gainesville September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:07 18:51
Monday, 15th September 2025 06:14 18:34
Tuesday, 30th September 2025 06:22 18:16

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