Indiana Dunes in December: Crowds, Weather & What to Pack

Shoulder · VisitWhen score 60/100 · #10 of 12 months

December is a quiet month with trade-offs at Indiana Dunes National Park: crowds run 20% of the July peak (100,250 average visits). Weather: highs average 37°F and lows 24°F, with 2.3″ of precipitation and 9.2 hours of daylight. Computed from NPS and NOAA data.

Indiana Dunes in December: what the park service says

December returns Indiana Dunes to its cloudy winter, with highs in the low to mid-30s°F, and the park's weather is strongly shaped by Lake Michigan and can change quickly. Hiking is rewarding in every season, the park says, but do not hike alone in winter and dress in loose layers with a hat. The park offers nearly 500 guided tours and activities a year.

Source: NPS 1, NPS 2, NPS 3, checked 2026-11-05.

Crowds in December

Indiana Dunes averages 100,250 recreation visits in December — 20% of what July, the peak month, draws — this is the third-quietest month of the year. Plan lodging and entries with that in mind — crowds are thin by this park's standards.

Weather & daylight

Expect cold conditions (highs average 37°F), and nights drop below freezing (lows average 24°F). Average precipitation is 2.3″ for the month. Normal snowfall is 7″ — expect snow on the ground. Mid-month daylight runs 9.2 hours.

NOAA 1991–2020 monthly normals, station INDIANA DUNES NL, IN US (1 mi from park coordinates, 680 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of December.

What to pack for Indiana Dunes in December

Computed from the month's weather normals above — not a generic list.

• Insulated jacket, beanie and gloves — nights average 24°F, below freezing
• Packable rain jacket — 2.3″ of precipitation is normal this month
• Traction devices (microspikes) and gaiters — 7″ normal snowfall (compare other options)
• Headlamp — only 9.2 hours of daylight in mid-December (compare other options)
• Insulated, waterproof boots — plus navigation and a basic first-aid kit — 7″ of snow is normal this month

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Looking for a better window? The computed best months for Indiana Dunes are March and April.

Also at their best in December

Other parks whose computed December verdict is a best window — same NPS × NOAA formula:

• American Samoa in December — 17% of peak crowds, highs 88°F, score 66/100
• Everglades in December — 72% of peak crowds, highs 80°F, score 64/100
• Biscayne in December — 77% of peak crowds, highs 80°F, score 62/100

Common questions

See also: the best national parks to visit in December · Last verified 2026-09-24