December Prague is the postcard: the great tree on Old Town Square, market stalls steaming with mulled wine, lights strung over every lane, and dusk at four turning the whole city into an evening set. It's the most magical month — and the one that most rewards smart timing.
1. Old Town Square under the tree
Old Town
The definitive December proposal — go weekday morning or shoulder-evening, and the tree does the rest.
2. Charles Bridge at winter dawn
The river
A 7:55 sunrise, mist on the water, the bridge to yourselves before the market day begins.
3. Powder Tower & Municipal House
Old Town gateway
Gothic-meets-art-nouveau under Christmas lights, arcades for shelter, and Prague's warmest grand café inside.
Light: the 16:00 gift
Sunset around 16:00 mid-month — the earliest of the year. That's a gift: full twinkling-lights atmosphere by late afternoon, celebration dinner at seven. Mornings stay calm even in December; the markets before 10am are almost private.
Market magic vs market crowds
Old Town Square evenings are genuinely dense in December. The play: weekday mornings at the square, or evenings at the smaller markets and viewpoints above the lights. The complete plan — including where the tree photographs best — is in our Christmas market guide.
Christmas week and New Year
The city fills between Christmas and New Year. A proposal on the 24th–26th borrows real Czech Christmas intimacy (carp, carols, closed shops); New Year's Eve is its own spectacular animal — see the NYE guide before committing to midnight.