Weather | 5–10°C (41–50°F), damp, darker afternoons | 2–8°C (36–46°F), cold, windy, occasional rain | 2–8°C (36–46°F), coldest feel, grey mornings |
Crowds | Moderate, rising late month | Moderate to high; busiest Dec 20–31 | Low, except New Year's Day areas |
Atmosphere | Early winter, lights begin switching on | Full festive season, markets, carols, window displays | Quiet, post-holiday, more local pace |
Key events | Bonfire Night, Jazz Festival, winter market openings | Winter Wonderland, Hanukkah, carols, Boxing Day, NYE fireworks | New Year's Day Parade, January sales, ice rinks still running |
Public holidays | None affecting the whole month | Christmas Day, Boxing Day, New Year's Eve | New Year's Day |
Budget | Better hotel value before festive rush | Higher from mid-December, especially Christmas week | Among the year's best central London rates |
Best for | Lower-key museum trips and early festive visits | Christmas lights, markets, theatre, festive short breaks | Cheap cultural trips and fewer queues |
Book early? | Helpful for late-November festive openings | Yes, especially for Dec 20–31 | Less urgent outside premium theatre |