Guymon weather in September 2025

Expect 28°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Guymon in September. Check more long-term weather averages for Guymon in September before you book your next holiday to Oklahoma in 2025/2026.

  • 28°C maximum daytime temperature in September in Guymon28
    28°C max day temperature
  • 9 hours of sunshine per day
  • 6 days with some rainfall in September in Guymon6
    6 days with some rainfall
  • 12°C minimum night-time temperature in September in Guymon12
    12°C min night temperature
  • 12 hours of daylight per day in September in Guymon12
    12 hours of daylight per day
  • Moderate heat & humidity in September in GuymonM
    Moderate heat & humidity
  • 44 mm monthly rainfall in September in Guymon44
    44 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Guymon8
    8 (Very High) UV index

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The September weather guide for Oklahoma (Guymon) 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 Guymon in September?

Daytime temperatures usually reach 28°C in Guymon in September with moderate heat and humidity, falling to 12°C at night.

How sunny is it in Guymon in September?

There are normally 9 hours of bright sunshine each day in Guymon in September - that's 71% of daylight hours.

Does it rain in Guymon in September?

There are usually 6 days with some rain in Guymon in September and the average monthly rainfall is 44mm.

Guymon September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:17 19:14
Monday, 15th September 2025 06:28 18:53
Tuesday, 30th September 2025 06:41 18:30

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