Indiana Dunes National Park

Quick answers

When is Indiana Dunes National Park open?

Usually Mon–Sun 6:00–23:00. Details

When is the best time to visit Indiana Dunes National Park?

By typical weather, the best months for a day outdoors here are June, September, and October. Details

When is Indiana Dunes National Park open?

• Mon–Sun 6:00–23:00

From 56 published days, 2026-11-07 to 2027-01-01; community-mapped.

About

Entrance / day-use fee applies.

Lake Michigan's might has influenced Indiana Dunes for millennia. Wind and waves have shaped the land, leaving a rich mosaic of habitats along these 15 miles of Indiana coast. Over 50 miles of trails lead through shifting sand dunes, quiet woodlands, sunny prairies and lush wetlands. Known for its striking plant and bird diversity, it's easy to find inspiration throughout the park’s 16,000 acres.

This park's official page lists: Wheelchair-accessible facilities, Pet-friendly (leashed), Restrooms, Visitor center, Drinking water, Picnic areas, Showers, Store / concessions.

When is the best time to visit Indiana Dunes National Park?

By typical weather, the best months for a day outdoors here are June, September, and October.

The weather works against it in January, February, March, November, and December.

The warmest month is July, with average highs near 83°F (28°C); the coolest is January, near 32°F (0°C).

May is the wettest month, with about 4.4 in (112 mm) of precipitation in a typical May.

Typical weather, 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025). Data from NASA Langley Research Center POWER Project (CC BY 4.0)

Official facts

On the Forest Service's 2023 map, Indiana Dunes National Park's mapped point sits in the low wildfire hazard class; the map describes the land rather than any day's fire danger.

For river levels near Indiana Dunes National Park, the USGS gauge Little Calumet River At Porter, IN (04094000) posts live readings, 3.3 km away.

Protected waters: 64.4 km². None of it is no-take.

Boating: Vessel use restricted; anchoring unrestricted.

Fishing: Commercial and Recreational Fishing Restricted.

Conservation focus: Natural Heritage and Cultural Heritage. Protects the whole ecosystem. Site-Specific Management Plan.

IUCN category: V (Protected landscape or seascape).

Protection level: Zoned Multiple Use.

Marine protection: National Lakeshore. Listed as "Indiana Dunes National Lakeshore" in NOAA's Marine Protected Areas Inventory, managed by National Park Service, established 1966.

Public access: Open access.

Protected area: 10,617 acres (4,297 ha).

Designation: National Park. Listed as "Indiana Dunes National Park" in the Protected Areas Database of the United States. Protection: managed for biodiversity (GAP 2). IUCN category II.

Established: 1966.

Managed by: NPS.

Critical habitat: Piping Plover (endangered). Charadrius melodus. Endangered Species Act critical habitat (final rule published 2001-05-07, 66 FR 22938), mapped at or near this park.

NOAA Marine Protected Areas Center (Office of National Marine Sanctuaries) with the US Department of the Interior, MPA Inventory 2023 · U.S. Geological Survey (USGS) Gap Analysis Project (GAP), 2025, Protected Areas Database of the United States (PAD-US) 4.1 · U.S. Fish and Wildlife Service, Endangered Species Act critical habitat (FWS HQ ES Critical Habitat) · U.S. Geological Survey, National Water Information System · Dillon, Gregory K. 2023. Wildfire Hazard Potential for the United States (270-m), version 2023. 4th Edition. Forest Service Research Data Archive

At the park

• Visitor center exhibit
• Beaches scenic feature
• Wildlife & bird watching scenic feature
• Hiking trails trail

Shows and experiences

• Junior Ranger program

What's on at Indiana Dunes National Park

The park's own calendar lists six dated events from November 7 to November 11, 2026.

Five of the six one-day events fall on a weekend; Saturday has the most, with five.

By kind, the calendar holds two regular events.

Start times are spread through the day, from 8 am to 3:30 pm.

Two events need a separate ticket.

Events

• Fall Colors Hike Nov 7, 2026 · 03:30 PM–04:30 PM · The Bailly Homestead / Chellberg Farm parking lot is located at 618 N Mineral Springs Rd, Porter, IN 46304.
• Foliage to Frost Hiking Series at Indiana Dunes National Park Nov 7, 2026 · 08:00 AM–11:00 AM · Paul H. Douglas Center for Environmental Education, 100 North Lake Street, Gary, IN 46403
• Miller Woods Hike Nov 7, 2026 · 01:00 PM–03:00 PM · Paul H. Douglas Center for Environmental Education, 100 North Lake Street, Gary, IN 46403
• Volunteering - Porter Beach Restoration Nov 7, 2026 · 09:00 AM–12:00 PM · Porter Beach Parking Lot, intersection of Wabash Avenue and Johnson Beach Road, Porter, IN 46304.
• Winter Maritime Wanderers Nov 7, 2026 · 08:30 AM–10:30 AM · Portage Lakefront Parking Lot, 100 Riverwalk Road, Portage, IN 46368 — Directions starting from the intersection of U.S. Highway 20 and Indiana State Route 249: Follow State Road 249 north and take…
• Veterans Day Film Nov 11, 2026 · 02:00 PM–03:00 PM · 100 North Lake Street, Gary, IN 46403

Before you go

Outside food

have picnic areas?: Yes, covered picnic shelters with tables are located at the following locations along with modern restrooms. Cooking fires are permitted in the provided grills or an approved carry-in grill.

Mobility

Does Indiana Dunes National Park have wheelchair accessible locations?: Major sites within the national park that are accessible with assistance include:

Disability access

This park's official page states it has wheelchair-accessible facilities. Specific routes, transfer access and equipment vary — confirm with the park for your needs.

Limits

In the parking lot and picnic area, all horse excrement must be bagged, removed from the area, and disposed of appropriately

Limits

Pets are permitted and must stay on a leash at all times (six feet or less)

Limits

Pets must be restrained on a leash no longer than 6 feet (2 meters)

Limits

Responsible alcohol use is permitted

Limits

No glass containers

Getting there

Visitors can access the national park via Interstate 94, the Indiana Toll Road (Interstate 80/90), U.S. Highway 12, U.S. Highway 20, Indiana State Road 49, and various other local roads. The Indiana Dunes Visitor Center is located on Indiana State Road 49, between U.S. Highway 20 and Interstate 94 (1215 IN-49, Porter, IN 46304). For a driving map to the Indiana Dunes Visitor Center or other locations, check out our maps page.

Weather & when to go

On average, the warmest month is July and the highest recorded temperature was 105F in 1934. The coolest month is January, with the lowest recorded temperature of -25F in 1985. June sees the most precipitation with an average rainfall of 4.66 Inches.

History

Opened

2019

• Park opened