Sioux City weather in September (Iowa, United States of America)
What kind of weather does September bring to Sioux City? Get all the weather information you need to plan your visit.
Temperatures
The weather in Sioux City during September is typically perfect, with high temperatures and moderate rainfall. Daytime temperatures are expected to be around 25°C, cooling off to about 11°C at night.
Precipitation
Sioux City in September usually receives moderate rainfall, averaging around 70 mm for the month. Analyzing past climate data, one can expect approximately 9 days of rain.If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Sioux City. September typically offers 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 September
Min Temperature
11°C
Max Temperature
25°C
Chance of Rain
30%
Precipitation
70 mm
Rainy days
9 days
Where to go in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
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.
Interested in more climate information?
This site 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 travel conditions. Find out where to go with our weather planner.
