What December in New York actually looks like
The city genuinely transforms in December — the Rockefeller Center Christmas tree, the window displays along Fifth Avenue, the holiday markets, the ice rinks, and the particular quality of the light on cold clear days make it one of the most photogenic versions of New York that exists. It is also the most crowded and most expensive version, peaking in the two weeks before Christmas and spiking again around New Year's Eve.
The Rockefeller Center Christmas Tree
The tree lighting ceremony is in late November; the tree remains lit through early January. The surrounding plaza and the ice rink are packed from mid-November through New Year's. The crowds are real and unavoidable — go early in the morning (before 9am) or on a weekday evening to see the tree without the full midday crush.
Ice skating
Rink at Rockefeller Center: iconic setting, small rink, premium pricing. Bryant Park: free to skate (rental fees for skates), central Midtown location, heated lodges around the perimeter with food and drinks. Wollman Rink in Central Park: larger, good skyline views, less crowded than the Rock. All three typically open in late October/early November.
Holiday markets
The Union Square Holiday Market (late November through Christmas Eve) is the largest and most established, with food, crafts, and gifts. Bryant Park Winter Village surrounds the skating rink with vendors. The Columbus Circle holiday market is smaller but convenient for Upper West Side visitors. None of them are cheap, but the atmosphere is genuine.
The holiday window displays
Bergdorf Goodman, Saks Fifth Avenue, Bloomingdale's, and Macy's all produce elaborate window displays from late November onward — worth the walk along Fifth Avenue and 34th Street purely as public art, at no cost.
Costs in December
Hotel prices peak during the two weeks before Christmas and around New Year's Eve. Book well in advance for this period; the same hotel that costs $200/night in February may cost $400+ in mid-December. The period between Christmas and New Year is also expensive; the cheapest December window is the first two weeks of the month before the holiday rush peaks.