Most visitors who do not need a visa now need an Electronic Travel Authorisation (ETA) before flying; apply on the official UK government app or site.
Tap to travel
Use a contactless card or phone on the Tube, buses and Elizabeth line. Daily and weekly caps stop you overpaying.
Dress in layers
A warm waterproof coat, scarf and comfortable shoes; museums and shops are heated, so layers are easier than one thick jumper.
Rain is normal
Showers come and go. Carry a compact umbrella and keep an indoor plan for each day.
Daylight is short
Sunrise is around 8am and sunset just before 4pm in mid-December. Start sightseeing early.
Stand on the right
On Tube escalators, stand on the right and walk on the left.
Book the big things
Christmas at Kew, Winter Wonderland, afternoon tea and popular shows sell out in December.
Watch your phone
Phone snatching is common in busy areas. Keep phones away from the kerb and bags closed.
Cards everywhere
Almost everywhere is cashless; keep a little cash for some market stalls.
Tipping
A service charge of 12.5% is often added to restaurant bills; check before tipping again.
Holiday closures
Most museums close 24–26 December and there is no public transport on Christmas Day. Plan those days around walks and your hotel.
Stay connected
Buy a UK eSIM before you fly; free Wi-Fi is available in most stations, museums and cafés.
London is generally safe for visitors. Stay alert in crowds, use licensed taxis or ride-hailing apps late at night, and check the entry rules for your passport before you travel.