Best time to visit Indianapolis, United States
Based on 2020–2024 of daily weather data, the best months to visit Indianapolis are September, June, August — when temperatures are comfortable, rainfall is low, and sunshine is plentiful.
Months ranked by travel comfort
| Rank | Month | High | Low | Precip | Rainy days | Sun | Score |
|---|---|---|---|---|---|---|---|
| 1 ★ | September | 25.8° | 15.2° | 310.4 mm | 62 | 10.2 h | 88 |
| 2 ★ | June | 28.5° | 17.3° | 427.7 mm | 75 | 11.6 h | 84 |
| 3 ★ | August | 28.8° | 18.6° | 430.6 mm | 88 | 11.4 h | 83 |
| 4 | May | 22.8° | 11.8° | 570 mm | 93 | 10.1 h | 79 |
| 5 | October | 19.2° | 9.1° | 375.9 mm | 65 | 8.1 h | 78 |
| 6 | July | 29.6° | 19.6° | 628.4 mm | 99 | 11.9 h | 77 |
| 7 | April | 16.8° | 5.7° | 462 mm | 84 | 9 h | 70 |
| 8 | November | 11.8° | 2.7° | 334.3 mm | 56 | 6.8 h | 61 |
| 9 | March | 12.6° | 1.8° | 746.3 mm | 83 | 7.4 h | 49 |
| 10 | February | 6.2° | -4° | 382.3 mm | 68 | 6.8 h | 45 |
| 11 | December | 6.9° | -1.2° | 429.5 mm | 81 | 5.1 h | 44 |
| 12 | January | 3.6° | -3.9° | 508 mm | 84 | 4.6 h | 34 |
Score (0–100) blends ideal-temperature comfort (50%), low-rainfall (30%), and sunshine (20%). Higher is better for a typical sightseeing trip.
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