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Isle Royale National Park in December

Very quiet0.0× average month · best-time score 0/100

December at Isle Royale National Park averages a daytime high near 26°F and an overnight low around 9°F, with about 1.7" of precipitation and roughly 12" of snow. Visitation runs about 0× the park's average month, which makes December a very quiet month here.

Average low
9°F
Average high
26°F

Range across the year: 1°F to 74°F

Crowds
0.0× averageVery quiet
  1. J
  2. F
  3. M
  4. A
  5. M
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  8. A
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  12. D
Precipitation
1.7 in
Snowfall
12 in
Daylight
8.2 hours

Check access before you plan around December

December draws about 3% of the visits Isle Royale sees in an average month. Numbers that low usually mean limited access: closed roads, closed facilities or deep-winter conditions. The count alone does not say which, so check the park's current conditions before planning around December. Official Isle Royale park page.

Roughly 0% of the park's yearly visitors come in December: about 40 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.

That makes December the 8th-busiest of the park's twelve months, sitting between the August peak (4.2×) and the January low (0×).

On our Best Time to Visit score December rates 0/100 ("Poor"). Our recommended month is September: the lightest crowds of the park's good-weather months.

The daily average of about 18°F is cold, with winter conditions likely on higher ground. These figures are 1991–2020 NOAA climate normals from the nearest station, about 40 miles from the park.

Because June, July and August together draw about 83% of annual visitors, choosing December instead steps outside that summer crush — the single biggest lever on how crowded the park feels.

You'll have about 8.2 hours of daylight in December to explore — near the year-round minimum.

Park-wide, 2019 drew 26,410 recreation visits, up 2.4% from 25,798 in 2018.

Across the past decade overall visitation has risen about 56.7%, so a December visit is likely to feel busier than it did a few years ago.

How December compares with the months around it

MonthAvg high / lowCrowdsBest-time score
November38°F / 22°F0.0× Very quiet2 Poor
December26°F / 9°F0.0× Very quiet0 Poor
January20°F / 1°F0.0× Very quiet1 Poor

All twelve months at Isle Royale, with the best time to visit.

Seasonal closures in December 2026

The National Park Service lists these Isle Royale facilities as closed during December 2026. The dates are the park's own, read on October 11, 2026. A facility that is not listed here may still be closed, so confirm on the park's site before you go.

25 more facilities are listed as closed in December.

Reviewed by WhenToVisitParks Editorial Team · Updated

Frequently Asked Questions

December averages a daytime high near 26°F and an overnight low around 9°F at Isle Royale National Park, with about 1.7 inches of precipitation and roughly 12 inches of snow. These are 1991–2020 NOAA climate normals from the nearest station, about 40 miles from the park, so conditions inside the park can differ, especially at other elevations.

December is very quiet at Isle Royale National Park (about 0.0× the average month). Our best-time score rates it "Poor" at 0/100. Our recommended month is September. December draws about 3% of the visits Isle Royale sees in an average month. Numbers that low usually mean limited access: closed roads, closed facilities or deep-winter conditions. The count alone does not say which, so check the park's current conditions before planning around December.

The busiest month is August and the quietest is January. December sits at about 0.0× the park's average, or 0% of annual visitation.

A typical December sees about 0,000 recreation visits at Isle Royale National Park, based on National Park Service monthly counts from 1979–2025.

Where to stay near Isle Royale in December

Booking a December trip to Isle Royale National Park? Compare hotels, cabins and vacation rentals near the park with live December availability and prices.

Top-rated places to stay near Isle Royale

Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Visiting Isle Royale in December?

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See the full ranking of the best national parks to visit in December.

Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.