Best Time to Visit Indianapolis, Indiana (2026)
The best time to visit Indianapolis is April through October, when average highs are 64-86°F with minimal rain. Avoid December when cold temperatures and heavy snow (6.5") make it the harshest month.
Month-by-Month Weather Overview
| Month | High | Low | Rain | Snow | Score |
|---|---|---|---|---|---|
| Jan | 35°F | 20°F | 2.7" | 9" | 3/10 |
| Feb | 40°F | 24°F | 2.4" | 6.5" | 3/10 |
| Mar | 52°F | 33°F | 3.4" | 2.5" | 4/10 |
| Apr | 64°F | 43°F | 3.9" | 0.5" | 8/10 |
| May | 74°F | 53°F | 4.5" | — | 10/10 |
| Jun | 83°F | 63°F | 4.2" | — | 10/10 |
| Jul | 86°F | 66°F | 4.3" | — | 10/10 |
| Aug | 84°F | 65°F | 3.6" | — | 10/10 |
| SepBest | 78°F | 56°F | 3.1" | — | 10/10 |
| Oct | 66°F | 45°F | 3" | — | 8/10 |
| Nov | 51°F | 35°F | 3.3" | 1.5" | 4/10 |
| Dec | 38°F | 24°F | 3" | 6.5" | 3/10 |
Tourism score: 1-10 (higher = better for visiting). Based on temperature comfort, rainfall, and humidity.
When NOT to Visit Indianapolis
December is the least ideal time to visit Indianapolis. Conditions are less favorable for tourism, with highs of 38°F and 3" of rain. The winter months from December through February bring the most challenging weather.
Seasonal Breakdown
Spring
Spring brings mild weather to Indianapolis, with highs around 63°F. Expect some rain (11.8" total) but increasingly pleasant days.
Summer
Indianapolis summers are warm with average highs of 84°F. Perfect for outdoor activities with longer daylight hours.
Fall
Fall brings comfortable temperatures to Indianapolis, with highs around 65°F. Often considered the best season to visit.
Winter
Winter in Indianapolis means snow (22" average) and cold, with highs around 38°F. Bundle up and enjoy winter activities.
What to Pack for September in Indianapolis
- ✓Light layers
- ✓Sunglasses
- ✓Comfortable walking shoes
- ✓Umbrella or rain jacket
Frequently Asked Questions
What is the best month to visit Indianapolis?
The best time to visit Indianapolis is April through October, when highs average 64-86°F with comfortable temperatures and manageable rainfall. September scores highest for tourism at 10/10.
What is the weather like in Indianapolis in September?
In September, Indianapolis has average highs of 78°F and lows of 56°F. Expect 3.1" of rainfall and 67% humidity. Snow is not expected.
Does it snow in Indianapolis?
Yes, Indianapolis gets an average of 26.5" of snow per year across 5 months. Snow is a regular winter occurrence.
How hot does Indianapolis get?
The hottest month in Indianapolis is July, with average highs of 86°F and lows of 66°F. Humidity averages 67%. Summer heat can be intense.
What should I pack for Indianapolis?
For the best time to visit (September): Light layers, Sunglasses, Comfortable walking shoes, Umbrella or rain jacket. If visiting in winter, add a heavy coat, warm hat, and insulated boots.