How Crowded Is Assateague Island National Seashore in December?

December runs about 0.3× Assateague Island National Seashore's average month, which makes it a very quiet month here — roughly 2% of the park's yearly visitors come in December.

In a typical December the park sees about 49,000 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

It is the quietest month of the year at Assateague Island; by contrast July, the busiest, runs about 2.5× the average — so December is the easiest time to have the place largely to yourself.

On our Best Time to Visit score December rates 54/100 ("Fair"), versus the top-rated October at 70/100 — pleasant weather with noticeably thinner crowds (shoulder season).

Typical December weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 52°F and an overnight low around 35°F, with about 4" of precipitation.

That average of about 43°F is cool, so layers and a shorter daylight window matter.

Because June, July and August together draw about 55% 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 9.4 hours of daylight in December to explore — near the year-round minimum.

Park-wide, 2025 drew 2,325,195 recreation visits, up 1.9% from 2,282,498 in 2024.