London in the rain: what actually works

Two things are true about London weather. It rains far less than its reputation suggests — London gets less annual rainfall than Rome, Sydney or New York. And when it does rain, it's usually the light persistent kind that soaks you slowly rather than the kind that stops the day.

Which means the right response isn't a rainy-day plan. It's a small adjustment.

What rain actually costs you

Very little. Here's the honest split:

Unaffected: every museum and gallery, the Tower of London (mostly indoors), Westminster Abbey, St Paul's, theatre, markets under cover, restaurants, pubs, the Underground, department stores.

Degraded but fine: walking tours, Borough Market, the South Bank, Greenwich, most neighbourhoods. Wetter, less pleasant, still worth doing.

Genuinely not worth it: the London Eye and every rooftop viewpoint, Hyde Park and the royal parks, river cruises for the view, the open-top bus tours, Hampstead Heath, outdoor markets like Columbia Road.

That last list is short, and half of it is things we'd tell you to skip anyway.

The best free indoor day in the world

This is where London is genuinely, unusually well equipped. On a wet day you have, at no cost:

• The British Museum — vast, and you could spend a full day
• The National Gallery — on Trafalgar Square, top-tier collection
• Tate Modern — the Turbine Hall alone is worth the walk
• The V&A — the most beautiful building of the group
• The Natural History Museum — best with children, busiest at weekends
• The Science Museum — next door to the above
• The National Portrait Gallery — smaller, more focused, less crowded
• The Imperial War Museum — heavier subject, superbly done
• The London Museum — the city explaining itself

South Kensington is the obvious wet-day base: the V&A, the Natural History Museum and the Science Museum are on one street, and there's a subway tunnel from the tube station so you barely go outside.

Indoor things people don't think of

The arcades and covered markets. Leadenhall Market, Burlington Arcade, the Royal Exchange. Victorian glass roofs, genuinely lovely, and free to walk through.

Sky Garden. A viewpoint, so the view suffers — but it's indoors, warm, free and glass-roofed. On a grey day it's still a pleasant hour, which is more than can be said for the Eye.

A department store. Fortnum & Mason and Liberty are attractions in their own right, whether or not you buy anything.

The Barbican Conservatory. A tropical greenhouse hidden inside a concrete estate, free, open on limited days. Check before going.

A long pub lunch. Not a consolation prize. A proper Sunday roast in a warm pub while it hammers down outside is one of the genuinely good London experiences.

What to wear, honestly

A waterproof coat with a hood beats an umbrella. London rain frequently arrives sideways, pavements are crowded, and umbrellas are awkward on the Tube and in doorways. Locals overwhelmingly use coats.

Waterproof shoes matter more than you expect. You will walk further than planned and stand on wet platforms. Wet feet at 11am ruins a day in a way wet shoulders don't.

Layers, not thickness. Buildings and the Underground are heated hard. A thick coat means carrying it for six hours.

Skip the cheap umbrella. The £5 ones sold near stations invert on the first gust. If you want one, buy a decent compact.

Timing tricks

Rain here usually passes. Long all-day downpours are less common than showers with gaps. Check an hourly forecast rather than a daily one, and plan outdoor bits around the gaps.

Museums are busiest when it rains. Everyone has the same idea. If it's wet, go early — most open at 10am and the first ninety minutes are calm.

The Tube is your covered corridor. Central London is dense enough that you can chain a day together with short hops and barely be outside. Buses are drier to wait for than you'd think, since most stops have shelters.

The one plan worth moving

If you've booked a timed slot for a viewpoint — Horizon 22, Sky Garden, the Eye if you ignored us — and the forecast is heavy, move it. They're free or expensive, and either way the view is the entire product. Everything else on a London itinerary survives the weather.