Here’s the good news: once they’re on, they’re on. Most Christmas lights in London stay lit from their switch-on date right through until early January (usually around January 5th or 6th). That gives you plenty of time to wander around coughing from the cold, but smiling because it’s so pretty.
So, if you miss the switch-on ceremony, don’t panic. The lights don’t pack up the next day like a grumpy relative after Christmas dinner. They hang around, glowing and waiting for you to snap a blurry photo of them at 5pm when it’s already dark.
A Little Joke for the Road
Why are London’s Christmas lights always so bright? Because they’ve had years of practice hiding the city’s grey skies. Think of them as the world’s most optimistic mood ring.
The best Christmas lights in London 2026 | CN Traveller
In all seriousness, the best time to see them is after 4pm in December, when it’s dark enough for the full dazzle effect. Just wear comfortable shoes and bring a thermos of hot chocolate—you’ll thank me later.