May
Best time
23°C / 12.6°C
14 rain days
warm, rainy
- comfortable temperatures (avg high 23°C / 73°F)
- outside peak hazard season
Best time to visit Indianapolis
Indianapolis, United States — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. The standouts: May, April, June.
Best · May & April
About Indianapolis
Indianapolis, colloquially known as Indy, is the capital and most populous city of the U.S. state of Indiana and the county seat of Marion County. Indianapolis is situated in the state's central till plain region along the west fork of the White River.
— condensed from Wikipedia
Best months to visit
April
Best time
17.2°C / 6.2°C
12 rain days
mild, rainy
- outside peak hazard season
June
Best time
28°C / 17.7°C
12 rain days
hot, rainy
- outside peak hazard season
- warm evenings without humidity overload
July
Best time
29.1°C / 19.5°C
13 rain days
hot, rainy
- outside peak hazard season
- warm evenings without humidity overload
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OK — shoulder months
November
OK
10.8°C / 2.2°C
8 rain days
cool
- manageable rain (8 days)
- outside peak hazard season
March
OK
11.2°C / 0.8°C
12 rain days
cool, rainy
- outside peak hazard season
December
OK
6.6°C / -1.2°C
10 rain days
chilly, freezing nights, rainy
- manageable rain (10 days)
- outside peak hazard season
February
OK
5.5°C / -4.3°C
10 rain days
chilly, freezing nights, rainy
- manageable rain (10 days)
- outside peak hazard season
Months to skip
January
Skip
3.1°C / -5.2°C
10 rain days
cold, freezing nights, rainy
- bitterly cold (overnight -5.2°C)
September
Skip
26°C / 16°C
8 rain days
⚠ peak season
warm
- peak hurricane season
October
Skip
19°C / 9.9°C
11 rain days
⚠ peak season
mild, rainy
- peak hurricane season
August
Skip
28.4°C / 18.8°C
11 rain days
⚠ peak season
hot, rainy
- peak hurricane season
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.