Hot Springs weather in September 2025

Expect 79°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Hot Springs in September. Check more long-term weather averages for Hot Springs in September before you book your next holiday to South Dakota in 2025/2026.

  • 79°F maximum daytime temperature in September in Hot Springs79
    79°F max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in September in Hot Springs7
    7 days with some rainfall
  • 45°F minimum night-time temperature in September in Hot Springs45
    45°F min night temperature
  • 12 hours of daylight per day in September in Hot Springs12
    12 hours of daylight per day
  • No heat & humidity in September in Hot Springs0
    No heat & humidity
  • 1.4 inches monthly rainfall in September in Hot Springs1.4
    1.4 inches of monthly rainfall
  • UV (maximum) index 6 (High) in September in Hot Springs6
    6 (High) UV index

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The September weather guide for South Dakota (Hot Springs) 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 Hot Springs in September?

Daytime temperatures usually reach 79°F in Hot Springs in September with no heat and humidity, falling to 45°F at night.

How sunny is it in Hot Springs in September?

There are normally 9 hours of bright sunshine each day in Hot Springs in September - that's 71% of daylight hours.

Does it rain in Hot Springs in September?

There are usually 7 days with some rain in Hot Springs in September and the average monthly rainfall is 1.4 inches.

Hot Springs September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:18 18:28
Monday, 15th September 2025 05:34 18:03
Tuesday, 30th September 2025 05:51 17:36

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