Sioux City weather in May (Iowa, United States of America)

How is the weather in Sioux City in May? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.

In May, Sioux City typically experiences high temperatures and high rainfall. Anticipate daytime temperatures around 23°C, while night temperatures can drop to 9°C.

Sioux City in May usually receives high rainfall, averaging around 104 mm for the month. Rain is expected on roughly 12 days.

If your ideal day consists of dry skies and moderate temperatures September generally stands out with the best circumstances. While January, February, March and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Sioux City climate page with graphs.

 

Sioux City, monthly averages in May

Min Temperature 9°C  
Max Temperature 23°C  
Chance of Rain 40%  
Precipitation 104 mm  
Rainy days 12 days  

Where to go in the United States of America in May

Find out more about the weather in the United States of America in May and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Sioux City in May?

For visitors traveling to Sioux City, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in May.

Cycling
9/10
Walking
9/10
Camping
3/10
Outdoor sports
9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Sioux City.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.