Oklahoma weather in September 2025

Expect 29°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Oklahoma in September. Check more long-term weather averages for Oklahoma in September before you book your next holiday to Oklahoma in 2025/2026.

  • 29°C maximum daytime temperature in September in Oklahoma (Oklahoma City)29
    29°C max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in September in Oklahoma (Oklahoma City)8
    8 days with some rainfall
  • 17°C minimum night-time temperature in September in Oklahoma (Oklahoma City)17
    17°C min night temperature
  • 12 hours of daylight per day in September in Oklahoma (Oklahoma City)12
    12 hours of daylight per day
  • Moderate heat & humidity in September in Oklahoma (Oklahoma City)M
    Moderate heat & humidity
  • 98 mm monthly rainfall in September in Oklahoma (Oklahoma City)98
    98 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Oklahoma (Oklahoma City)8
    8 (Very High) UV index

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The September weather guide for Oklahoma (Oklahoma City) 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 Oklahoma destinations

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

All Oklahoma destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Oklahoma in September?

Daytime temperatures usually reach 29°C in Oklahoma City, Oklahoma in September with moderate heat and humidity, falling to 17°C at night.

How sunny is it in Oklahoma in September?

There are normally 9 hours of bright sunshine each day in Oklahoma City, Oklahoma in September - that's 70% of daylight hours.

Does it rain in Oklahoma in September?

There are usually 8 days with some rain in Oklahoma City, Oklahoma in September and the average monthly rainfall is 98mm.

Oklahoma September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:03 18:57
Monday, 15th September 2025 06:13 18:37
Tuesday, 30th September 2025 06:24 18:15

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