South Dakota weather in September 2022

  • 23°C maximum daytime temperature in September in South Dakota (Sioux Falls)23
    23°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in September in South Dakota (Sioux Falls)8
    8 days with some rainfall
  • 9°C minimum night-time temperature in September in South Dakota (Sioux Falls)9
    9°C min night temperature
  • 12 hours of daylight per day in September in South Dakota (Sioux Falls)12
    12 hours of daylight per day
  • No heat & humidity in September in South Dakota (Sioux Falls)0
    No heat & humidity
  • 74 mm monthly rainfall in September in South Dakota (Sioux Falls)74
    74 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in South Dakota (Sioux Falls)6
    6 (High) UV index

Below are average maximum temperatures at popular destinations in South Dakota in September. Select a destination to see more weather parameters.

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Recommended for South Dakota

The September weather guide for South Dakota (Sioux Falls) 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.

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

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More about the USA

How hot is it in South Dakota in September?

Daytime temperatures usually reach 23°C in Sioux Falls, South Dakota in September, falling to 9°C at night.

How sunny is it in South Dakota in September?

There are normally 8 hours of bright sunshine each day in Sioux Falls, South Dakota in September - that's 64% of daylight hours.

Does it rain in South Dakota in September?

There are usually 8 days with some rain in Sioux Falls, South Dakota in September and the average monthly rainfall is 74mm.

South Dakota September sunrise & sunset times

Browse the sunrise and sunset times for South Dakota in September 2022. Select a month to view South Dakota sunrise and sunset times for the next 12 months. The South Dakota sunrise and sunset times shown below are for Sioux Falls.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st September 2022 06:51 20:02
Thursday, 15th September 2022 07:06 19:37
Friday, 30th September 2022 07:23 19:09

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