ClimateAverages

Indianapolis Weather in September

JanFebMarAprMayJunJulAugSepOctNovDec
Right now
9°C
Clear · feels like 6°C
Humidity
48%
Wind
4 kph S
UV
0
Rain
0%
Updated Oct 19, 07:45 AMWeather data by WeatherAPI.com
September daytime high
25.5°C
September overnight low
12.3°C
September average
18.9°C

In September, Indianapolis typically sees daytime highs of 25.5°C and overnight lows around 12.3°C. Compared to the annual average high of 16.5°C, September runs +9.0°C.

vs. annual avg high
+9.0°C
Rank among 12 months
#4 warmest
Hottest year overall
2011

Where September ranks in Indianapolis

JanFebMarAprMayJunJulAugSep26°OctNovDec

FAQ

What is the average temperature in Indianapolis in September?

September in Indianapolis averages a daytime high of 25.5°C and an overnight low of 12.3°C.

Is September warm or cold in Indianapolis?

September runs +9.0°C compared to Indianapolis's annual average high of 16.5°C, ranking #4 of 12 months by warmth.

What should I pack for Indianapolis in September?

Plan for daytime highs near 25.5°C and cooler evenings around 12.3°C.

Other months for Indianapolis

JanuaryFebruaryMarchAprilMayJuneJulyAugustOctoberNovemberDecember

September in nearby cities

Fort WayneEvansvilleSouth BendCarmelBloomingtonHammondGaryFishersLafayetteMuncieTerre HauteNoblesville