South Dakota weather in July 2025

Q: 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.

Q: 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.

Q: 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.

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
30°C max day temperature
11
11 hours of sunshine per day
10
10 days with some rainfall
17
17°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
71
71 mm of monthly rainfall
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)

More about the USA

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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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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South Dakota - quick facts
Flight time^✝	12.5 hours
Time difference	UK -6 to -7 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Nature
Tourist info	South Dakota Department of Tourism