St. Charles weather in September (Missouri, United States of America)
What's the typical weather in St. Charles for September? Explore our page to find a thorough overview of this month's weather conditions.
Temperatures
The weather in St. Charles during September is usually perfect, offering high temperatures and moderate rainfall. During the day, temperatures can climb to about 27°C. At night, they may fall to a cooler 15°C.
Precipitation
St. Charles in September usually receives moderate rainfall, averaging around 96 mm for the month. Historically, approximately 8 days this month are expected to have rain.Average sunshine
Expect sunny days throughout the month, with an estimated 235 hours of sunshine. Making it a pleasant time to visit St. Charles.If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit St. Charles. September and October typically offer the best circumstances. While January, February and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized St. Charles climate page with graphs.
St. Charles, monthly averages in September
Min Temperature
15°C
Max Temperature
27°C
Chance of Rain
28%
Precipitation
96 mm
Rainy days
8 days
Humidity
71% *
Sunshine
235 hours *
Percentage Sunshine
63% *
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?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.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 St. Charles.
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.
