If you accidentally arrive in early November, don’t panic! You’ll find Leicester Square and Trafalgar Square already looking festive, plus the department stores have their lights on. But the full market experience? It’ll be a ghost town until the second week of November. You might get a stray carousel operator looking at you with pity.
10 London Christmas Markets to Explore | The Nature Seeker
My advice? Do your research (which you’re doing right now—gold star!). Bookmark the official “Visit London” website for dates. And remember: the markets rarely open before November 10th. Save yourself the disappointment of a cold, marketless walk.