Indiana Dunes · September · Indiana

Indiana Dunes National Park in September

September is a prime month to visit Indiana Dunes National Park. Crowds are moderate. Highs average 73°F and lows 61°F, with about 3.39 inches of rain.

September gets a prime rating at Indiana Dunes. The very best months are Jul–Sep.

RatingPrime
CrowdsModerate
Avg high / low73°F / 61°F
Rain3.39 in

Last prime month Best value

What to expect

September is prime at Indiana Dunes. Warm September water, fall color in the woods and far fewer people.

Local tip

Weekend parking at the beaches fills up early in summer. Arrive before 10 a.m. or come on a weekday.

Good to know

  • Best months overall: Jul–Sep.
  • Closest airport: Chicago (ORD or MDW), about 1 hour.
  • Before you go: The 3 Dune Challenge is in Indiana Dunes State Park, which charges a separate fee. Check current conditions on nps.gov.

2-day Indiana Dunes itinerary · Packing list

Questions

Is September a good time to visit Indiana Dunes National Park?

September is a prime month to visit Indiana Dunes National Park. Crowds are moderate. Highs average 73°F and lows 61°F, with about 3.39 inches of rain.

What is the weather like in Indiana Dunes National Park in September?

Highs average 73°F and lows 61°F, with about 3.39 inches of rain. September is rated prime for visiting.

How crowded is Indiana Dunes National Park in September?

Crowds are moderate in September.