Best Time to Visit Indiana Dunes National Park
The best months to visit Indiana Dunes National Park are March, April and May — computed from official NPS visitation (2021–2025 average), NOAA weather normals and daylight. July is the crowd peak (509,715 monthly visits); January is quietest at 15% of peak.
- Partial Trail Closures on Bailly / Chellberg Trail (Park Closure)
- Partial Trail Closure - Dunewood Trace (Park Closure)
- Closure - Hobart Woodland Trail (Park Closure)
Monthly crowd curve
Average monthly recreation visits, 2021–2025 (NPS Visitor Use Statistics). Amber bar = current month.
Indiana Dunes month by month
| Month | Verdict | Avg visits | % of peak | High / Low | Precip | Daylight |
|---|---|---|---|---|---|---|
| January | Shoulder | 75,633 | 15% | 32°F / 18°F | 2.2″ | 9.5h |
| February | Shoulder | 82,933 | 16% | 36°F / 21°F | 2.0″ | 10.6h |
| March | Best window | 133,910 | 26% | 46°F / 30°F | 2.3″ | 11.9h |
| April | Best window | 166,419 | 33% | 57°F / 40°F | 3.5″ | 13.3h |
| May | Best window | 291,748 | 57% | 68°F / 50°F | 4.3″ | 14.5h |
| June | Peak crowds | 438,267 | 86% | 78°F / 60°F | 4.3″ | 15.2h |
| July | Peak crowds | 509,715 | 100% | 82°F / 64°F | 4.0″ | 14.9h |
| August | Peak crowds | 423,561 | 83% | 80°F / 63°F | 4.1″ | 13.9h |
| September | Shoulder | 272,078 | 53% | 74°F / 56°F | 3.6″ | 12.5h |
| October | Shoulder | 212,361 | 42% | 62°F / 45°F | 3.8″ | 11.1h |
| November | Shoulder | 115,522 | 23% | 49°F / 34°F | 2.8″ | 9.9h |
| December | Shoulder | 100,250 | 20% | 37°F / 24°F | 2.3″ | 9.2h |
Crowds: NPS Visitor Use Statistics, mean of 2021–2025 (2020 excluded as a COVID-19 anomaly). Weather: NOAA 1991–2020 monthly normals, station INDIANA DUNES NL, IN US (1 mi from park coordinates). Daylight: computed for the 15th of each month at the park's location. Methodology.
How many people visit Indiana Dunes each year
Indiana Dunes National Park had 2,629,497 recreation visits in 2025, 3% fewer than 2024 (NPS Visitor Use Statistics). The busiest year since 2015 was 2021, with 3,177,210. Over 2021–2025 it averaged 2,822,397 visits a year, which makes it the 13th most-visited of the 63 national parks.
| Year | Recreation visits | vs. year before |
|---|---|---|
| 2025 | 2,629,497 | −3% |
| 2024 | 2,705,209 | −2% |
| 2023 | 2,765,892 | −2% |
| 2022 | 2,834,180 | −11% |
| 2021 | 3,177,210 | +39% |
| 2020 | 2,293,106 | +7% |
| 2019 | 2,134,285 | +22% |
| 2018 | 1,756,079 | −19% |
| 2017 | 2,158,471 | +27% |
| 2016 | 1,698,223 | +4% |
| 2015 | 1,640,195 | — |
Calendar-year recreation visits as published by NPS Visitor Use Statistics. 2020 is shown here but left out of the monthly averages above, because the COVID-19 pandemic makes it unrepresentative. See how every park compares: all 63 parks ranked by visits.
What to pack for Indiana Dunes in March
Computed from March's weather normals — Indiana Dunes's best month above. Visiting another month? Each month page has its own weather-computed list.
- Insulated jacket, beanie and gloves — nights average 30°F, below freezing
- Packable rain jacket — 2.3″ of precipitation is normal this month
- Traction devices (microspikes) and gaiters — 6″ normal snowfall (compare other options)
- Insulated, waterproof boots — plus navigation and a basic first-aid kit — 6″ of snow is normal this month
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Common questions
What is the best month to visit Indiana Dunes?
March, April and May rank best for Indiana Dunes on VisitWhen's computed score — the strongest balance of low crowds (NPS data), comfortable weather (NOAA normals) and daylight.
What is the most crowded month at Indiana Dunes?
July: an average of 509,715 recreation visits (NPS, 2021–2025). The quietest is January, at 15% of the July peak.
When is Indiana Dunes least crowded with decent conditions?
January. It is the park's quietest month (15% of the July peak, 75,633 average visits) without harsh-season weather.
How many people visit Indiana Dunes per year?
Indiana Dunes National Park had 2,629,497 recreation visits in 2025, 3% fewer than 2024 (NPS Visitor Use Statistics). The busiest year since 2015 was 2021, with 3,177,210. Over 2021–2025 it averaged 2,822,397 visits a year.
What is the weather like at Indiana Dunes through the year?
The warmest month is July, with average highs of 82°F. The coldest nights come in January, averaging 18°F. The wettest month is June, with 4.3″ of precipitation. (NOAA 1991–2020 normals, INDIANA DUNES NL, IN US station.)
Dive into a month
Comparing parks for the same trip? See how Indiana Dunes ranks against all 63 parks in March, April and May.
Last verified 2026-09-24 · all parks