Texas weather in September 2025

Expect 90°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Texas in September. Check more long-term weather averages for Texas in September before you book your next holiday to Texas in 2025/2026.

  • 90°F maximum daytime temperature in September in Texas (Austin)90
    90°F max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in September in Texas (Austin)8
    8 days with some rainfall
  • 68°F minimum night-time temperature in September in Texas (Austin)68
    68°F min night temperature
  • 12 hours of daylight per day in September in Texas (Austin)12
    12 hours of daylight per day
  • High heat & humidity in September in Texas (Austin)H
    High heat & humidity
  • 3.5 inches monthly rainfall in September in Texas (Austin)3.5
    3.5 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Texas (Austin)9
    9 (Very High) UV index

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The September weather guide for Texas (Austin) 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.

Top Texas destinations

Below are average maximum temperatures at popular countries, regions and places in Texas in September. Select a holiday destination to see more weather parameters.

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Metric (°C)  |  Imperial (°F)

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How hot is it in Texas in September?

Daytime temperatures usually reach 90°F in Austin, Texas in September with high heat and humidity, falling to 68°F at night.

How sunny is it in Texas in September?

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

Does it rain in Texas in September?

There are usually 8 days with some rain in Austin, Texas in September and the average monthly rainfall is 3.5 inches.

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

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

Texas September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:08 18:53
Monday, 15th September 2025 06:16 18:36
Tuesday, 30th September 2025 06:24 18:17

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