South Dakota weather in July 2025

Expect 30°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in South Dakota in July. Check more long-term weather averages for South Dakota in July before you book your next holiday to South Dakota in 2025/2026.

  • 30°C maximum daytime temperature in July in South Dakota (Sioux Falls)30
    30°C max day temperature
  • 11 hours of sunshine per day
  • 10 days with some rainfall in July in South Dakota (Sioux Falls)10
    10 days with some rainfall
  • 17°C minimum night-time temperature in July in South Dakota (Sioux Falls)17
    17°C min night temperature
  • 15 hours of daylight per day in July in South Dakota (Sioux Falls)15
    15 hours of daylight per day
  • Moderate heat & humidity in July in South Dakota (Sioux Falls)M
    Moderate heat & humidity
  • 71 mm monthly rainfall in July in South Dakota (Sioux Falls)71
    71 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in July in South Dakota (Sioux Falls)9
    9 (Very High) UV index

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The July 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.

Top South Dakota destinations

Below are average maximum temperatures at popular countries, regions and places in South Dakota in July. Select a holiday destination to see more weather parameters.

All South Dakota destinations

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

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How hot is it in South Dakota in July?

Daytime temperatures usually reach 30°C in Sioux Falls, South Dakota in July with moderate heat and humidity, falling to 17°C at night.

How sunny is it in South Dakota in July?

There are normally 11 hours of bright sunshine each day in Sioux Falls, South Dakota in July - that's 74% of daylight hours.

Does it rain in South Dakota in July?

There are usually 10 days with some rain in Sioux Falls, South Dakota in July and the average monthly rainfall is 71mm.

South Dakota July sunrise & sunset times

Browse the sunrise and sunset times for South Dakota in July 2025. 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
Tuesday, 1st July 2025 04:50 20:12
Wednesday, 16th July 2025 05:01 20:05
Thursday, 31st July 2025 05:16 19:50

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