Best time to visit South Dakota

The best times to visit South Dakota (Sioux Falls) are in May, June and September based on our default weather conditions. Update your weather preferences to see which months best match.

South Dakota by month

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

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Top South Dakota destinations

Below are the temperatures expected today at popular countries, regions and places in South Dakota. Select a destination to compare today's forecast with average weather conditions.

All South Dakota destinations

When is the best time to visit South Dakota?

The best times to visit South Dakota (Sioux Falls) are in May, June and September based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 8 hours or more [remove]

Change the criteria to reflect your weather preferences.

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Max Day Temperature (°C)

  • -4°C maximum daytime temperature in January in South Dakota (Sioux Falls)-4
    Jan
  • -1°C maximum daytime temperature in February in South Dakota (Sioux Falls)-1
    Feb
  • 6°C maximum daytime temperature in March in South Dakota (Sioux Falls)6
    Mar
  • 15°C maximum daytime temperature in April in South Dakota (Sioux Falls)15
    Apr
  • 22°C maximum daytime temperature in May in South Dakota (Sioux Falls)22
    May
  • 27°C maximum daytime temperature in June in South Dakota (Sioux Falls)27
    Jun
  • 30°C maximum daytime temperature in July in South Dakota (Sioux Falls)30
    Jul
  • 29°C maximum daytime temperature in August in South Dakota (Sioux Falls)29
    Aug
  • 23°C maximum daytime temperature in September in South Dakota (Sioux Falls)23
    Sep
  • 16°C maximum daytime temperature in October in South Dakota (Sioux Falls)16
    Oct
  • 6°C maximum daytime temperature in November in South Dakota (Sioux Falls)6
    Nov
  • -2°C maximum daytime temperature in December in South Dakota (Sioux Falls)-2
    Dec

Hours of Sunshine (daily)

Best time to visit

The weather guide for South Dakota (Sioux Falls) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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

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More about South Dakota

Explore our complete guide to South Dakota with the latest travel advice for travellers and holidaymakers including official updates and local travel tips for South Dakota.

South Dakota travel guide - essential info

Below is a beginner's guide to South Dakota with essential travel facts such as dominant language spoken, typical flight time from the UK and the local currency. You can also check whether visas are required and what plug adapter you need to pack.

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

✝ = Typical flight time from the UK and visa requirements for UK travellers.

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South Dakota travel deals

Check out the latest deals, discount codes and special offers on holidays, flights, hotels and more for South Dakota in 2026/2027. Pay low deposits and save with last minute holidays, early bird offers and free kids places where available.

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South Dakota travel guidance

Check the latest travel guidance and advice on visiting South Dakota from official government sources (in english) from around the world including entry requirements and travel restrictions.

Learn more about the current safety and security risks from terrorism, natural disasters and more. Read about the local laws and customs to consider when travelling around South Dakota.

Note: UK FCDO - UK Foreign, Commonwealth & Development Office

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South Dakota travel health

Find out more about staying safe when travelling to South Dakota with the latest guidance on required vaccinations and recommended medication to take with you.

Check out the general travel tips for staying safe and healthy in South Dakota, risks of preventable diseases and what to pack.

Note: CDC - Centers for Disease Control and Prevention

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South Dakota travel features

Do you want to learn more about South Dakota? Read our latest features covering travel tips and insider destination guides on where to go and what to do in South Dakota.

We don't currently have any travel features on South Dakota. Discover more about holiday destinations around the world with this selection of general travel articles.

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South Dakota FAQs

Read our frequently asked questions about travelling to South Dakota including the current entry restrictions, driving side, electrical plugs used and much more.

Which is the hottest month in South Dakota?

The hottest time of year in Sioux Falls, South Dakota is normally July. Expect maximum daytime temperatures to reach 30°C with moderate heat and humidity.

Which month has the most rain in South Dakota?

In terms of rainfall, June is usually the wettest month in Sioux Falls, South Dakota with 92mm on average. There are normally 11 days in June with some rain.

When is it sunniest in South Dakota?

The sunniest time of year in Sioux Falls, South Dakota is normally July with bright sunshine on average for 74% of daylight hours; that's 11 hours of sunshine per day.

What is the flight time to South Dakota from the UK?

The flight time to South Dakota from the UK is typically 12.5 hours.

What is the time difference between South Dakota and the UK?

The time difference between South Dakota and the UK is UK time-6 to UK time-7 hours.

What is the main language spoken in South Dakota?

The main language spoken in South Dakota is English.

Learn a language for South Dakota with Busuu*, Rocket Languages* and Rosetta Stone*.

What is the currency in South Dakota?

The currency in South Dakota is the US Dollar (USD).

Send money to South Dakota with TransferGo*.

Which plugs are used in South Dakota?

South Dakota uses electrical plug type A + B (120 Volts).

Which side of the road do they drive on in South Dakota?

They drive on the right side of the road in South Dakota.

Find out more about driving in USA with International Drivers Association*.

Do you need a visa for South Dakota?

Yes, UK passport holders do need a visa to enter South Dakota.

Check USA visa requirements for all passport holders with VisaHQ*.

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