Best Time to Visit Indianapolis: Month-by-Month Guide

Best months for Indianapolis: September, August, July.

  • Best months for Indianapolis: September, August, July.
  • Peak season is July, August, June. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
  • Shoulder season: May, September, October. Good weather without the busiest period.
  • Wettest months: May, April, June.
  • The least pleasant month is January (score 4.2).

Year at a glance

3° -5° J 5° -4° F 11° 1° M 18° 7° A 23° 13° M 28° 18° J 29° 20° J 28° 19° A 25° 14° S 19° 8° O 11° 2° N 5° -2° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 3°C-5°C79 mm 10– – 4.2
February 5°C-4°C68 mm 9– – 4.9
March 11°C1°C96 mm 11– – 5.7
April 18°C7°C121 mm 12– – 6.6
May 23°C13°C121 mm 14– – 7.1
June 28°C18°C108 mm 12– – 7.4
July 29°C20°C91 mm 12– – 7.5
August 28°C19°C72 mm 9– – 7.9
September 25°C14°C72 mm 8– – 8.1
October 19°C8°C82 mm 9– – 7.4
November 11°C2°C87 mm 9– – 6.1
December 5°C-2°C78 mm 10– – 4.7

Frequently asked questions

When is the best time to visit Indianapolis?

The best months are September, August, July.

When is the rainy season in Indianapolis?

The wettest months are May, April, June.