Pierre weather in September 2026

Expect daytime maximum temperatures of 75°F in Pierre, South Dakota in September based on long-term weather averages. There are 9 hours of sunshine per day on average.

  • 75°F maximum daytime temperature in September in Pierre75
    75°F max day temperature
  • 9 hours of sunshine per day
  • 6 days with some rainfall in September in Pierre6
    6 days with some rainfall
  • 48°F minimum night-time temperature in September in Pierre48
    48°F min night temperature
  • 12 hours of daylight per day in September in Pierre12
    12 hours of daylight per day
  • No heat & humidity in September in Pierre0
    No heat & humidity
  • 1.3 inches monthly rainfall in September in Pierre1.3
    1.3 inches of monthly rainfall
  • UV (maximum) index 6 (High) in September in Pierre6
    6 (High) UV index

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Recommended for South Dakota

  • Kids stay & eat for free at Marriot Bonvoy
  • Destinations include Europe, Middle East & Africa
  • Valid for up to 2 adults & 2 kids aged up to 12

The September weather guide for South Dakota (Pierre) 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)  |  Imperial (°F)

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How hot is it in Pierre in September?

Daytime temperatures usually reach 75°F in Pierre in September, falling to 48°F at night.

How sunny is it in Pierre in September?

There are normally 9 hours of bright sunshine each day in Pierre in September - that's 69% of daylight hours.

Does it rain in Pierre in September?

There are usually 6 days with some rain in Pierre in September and the average monthly rainfall is 1.3 inches.

Pierre September sunrise & sunset times

Browse the sunrise and sunset times for Pierre in September 2026. Select a month to view Pierre sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 06:04 19:17
Tuesday, 15th September 2026 06:21 18:52
Wednesday, 30th September 2026 06:38 18:24

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