Indianapolis weather in September (Indiana, United States of America)
Curious about the September weather in Indianapolis? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.
In Indianapolis the weather in September is generally perfect, with high temperatures and moderate rainfall. Daytime temperatures hover around 26°C, while nights can cool down to about 14°C.
Indianapolis in September usually receives moderate rainfall, averaging around 85 mm for the month. Rain is expected on roughly 10 days.
The days are predominantly sunny, with an estimated total of around 235 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.
If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. August and September generally stand out with 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 Indianapolis climate page with graphs.
Indianapolis, monthly averages in September
Min Temperature
14°C
Max Temperature
26°C
Chance of Rain
33%
Precipitation
85 mm
Rainy days
10 days
Humidity
75%
Sunshine
235 hours
Percentage Sunshine
62%
Where to go in the United States of America in September
Find out more about the weather in the United States of America in September and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Indianapolis in September?
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 in September.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Indianapolis.
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.
