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Indianapolis weather in September

Weather in Indianapolis: September

Average day temperature: 77.1°F
Average night temperature: 63.6°F
Number of sunny days: 18 days
Day length: 11.8 - 13.0 hours
Number of rainy days: 1 day
Precipitation totals: 0.6 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 88°F. At the same time the lowest night temperature was 47°F. Day and night temperature averages during September were 78.8°F and 62.7°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Indianapolis in September is 0.6 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 6.6 mph It makes September one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 8.6.

Best time for vacation in Indianapolis

Sunniest months:
September 18 days
October 15 days
June 15 days
Warmest months:
July 82.1 °F
August 81.7 °F
June 78.8 °F
Coldest months:
January 34.5 °F
February 37.8 °F
December 41.2 °F
Rainiest months:
May 3 days
July 3 days
March 3 days
Windiest months:
March 9.4 mph
April 9.0 mph
February 8.7 mph

Indianapolis on a weather map

Indianapolis
+27°F
NW 4 mph
Feels like: +27°F
Precip.: 0%
Places in USA:
Name
°F
+16°F
+25°F
+75°F
+75°F
+54°F
+54°F
+63°F
+21°F
+52°F
+54°F
+54°F
+50°F
+48°F
+46°F
+23°F
24 Hours Forecast
Indianapolis
Local time: 03:46
December 22, sunday
0600
25°F
N
4 mph
0900
25°F
N
6 mph
1200
30°F
N
7 mph
1500
34°F
N
8 mph
1800
32°F
NW
7 mph
2100
30°F
NW
9 mph
December 23, monday
0000
28°F
N
9 mph
0300
28°F
N
9 mph
Units of measurement: °C / °F