Oklahoma City weather in September 2025

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

  • 29°C maximum daytime temperature in September in Oklahoma City29
    29°C max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in September in Oklahoma City8
    8 days with some rainfall
  • 17°C minimum night-time temperature in September in Oklahoma City17
    17°C min night temperature
  • 12 hours of daylight per day in September in Oklahoma City12
    12 hours of daylight per day
  • Moderate heat & humidity in September in Oklahoma CityM
    Moderate heat & humidity
  • 98 mm monthly rainfall in September in Oklahoma City98
    98 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Oklahoma City8
    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.

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

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How hot is it in Oklahoma City in September?

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

How sunny is it in Oklahoma City in September?

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

Does it rain in Oklahoma City in September?

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

Oklahoma City September sunrise & sunset times

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

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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