Oklahoma weather in September 2025

Q: 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.

Q: 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.

Q: 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.

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
29°C max day temperature
9
9 hours of sunshine per day
8
8 days with some rainfall
17
17°C min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
98
98 mm of monthly rainfall
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)

More about the USA

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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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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Oklahoma - quick facts
Flight time^✝	12.5 hours
Time difference	UK -6 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Nature
Tourist info	Oklahoma Tourism & Recreation Department