Sulphur weather in September 2025

Expect 29°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Sulphur in September. Check more long-term weather averages for Sulphur in September before you book your next holiday to Oklahoma in 2025/2026.

  • 29°C maximum daytime temperature in September in Sulphur29
    29°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in September in Sulphur8
    8 days with some rainfall
  • 17°C minimum night-time temperature in September in Sulphur17
    17°C min night temperature
  • 12 hours of daylight per day in September in Sulphur12
    12 hours of daylight per day
  • Moderate heat & humidity in September in SulphurM
    Moderate heat & humidity
  • 112 mm monthly rainfall in September in Sulphur112
    112 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Sulphur8
    8 (Very High) UV index

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

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

How sunny is it in Sulphur in September?

There are normally 8 hours of bright sunshine each day in Sulphur in September - that's 67% of daylight hours.

Does it rain in Sulphur in September?

There are usually 8 days with some rain in Sulphur in September and the average monthly rainfall is 112mm.

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

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

Sulphur September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:01 18:54
Monday, 15th September 2025 06:11 18:34
Tuesday, 30th September 2025 06:22 18:13

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