Oklahoma City weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: March – May, September – November
What is the weather like in Oklahoma City in September?
In September, Oklahoma City is hot: daytime highs average 29 °C, and nights cool down to about 20 °C. The sun shines for around 8 hours a day. Rain falls on about 6 days, adding up to 62 mm. On about 14 days the thermometer climbs to 30 °C or more. All in all, September is a good month for a holiday in Oklahoma City.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 52 | 76 | 86 |
| Day | 34° | 29° | 23° |
| Night | 24° | 20° | 13° |
| Sun | 9 h | 8 h | 7 h |
| Rain days | 7 | 6 | 7 |
More details for September
- Daylight
- 12 h 27 min07:12 – 19:39
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 8 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 36 %on averageAll months
- Hot days
- 14 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC−5America/Chicago
How the score comes together
- Temperatureweight 50 %70 %
- Sunshineweight 20 %77 %
- Few rainy daysweight 30 %87 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
Oklahoma City in September: quick answers
Is Oklahoma City hot in September?
Yes. In September, Oklahoma City is hot: daytime highs average 29 °C and nights stay around 20 °C. On about 14 days the thermometer climbs to 30 °C or more.
Does it rain much in Oklahoma City in September?
Rain falls on about 6 days, adding up to 62 mm.
Oklahoma City month by month
The whole year in Oklahoma CityAll destinations: USAWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences