London vs Seattle

London

London's reputation for rain is somewhat exaggerated — it actually receives less annual rainfall than Sydney, Rome, or New York. However, drizzle is frequent and skies are often overcast. Pack layers and a waterproof jacket regardless of season.

Seattle

Seattle has a temperate oceanic climate — mild year-round with a pronounced wet season from October through April. Summers are dry, sunny, and cool. The famous rain is usually a fine drizzle ("Seattle mist") rather than downpours. Snow at sea level is rare.

London

London's transport network (TfL) is extensive and efficient. Use a contactless bank card or Oyster card for the best fares — a daily cap of £8.10 (Zone 1-2) means you'll never overpay. Paper tickets cost significantly more. The Tube is the backbone, but buses and walking are often better for seeing the city.

Walkability: Central London is very walkable and walking is often faster than the Tube for short distances. The South Bank riverside walk from Westminster to Tower Bridge is one of Europe's best urban walks. Green parks (Hyde Park, St. James's Park, Regent's Park) connect neighborhoods beautifully on foot.

Seattle

Seattle transit is run by Sound Transit (regional) and King County Metro (buses, streetcar, water taxi). Light rail, buses, streetcars, and Washington State Ferries form a useful network. An ORCA card works across all systems. Driving downtown is painful — traffic is consistently ranked among America's worst.

Walkability: Downtown, Pike Place Market, Pioneer Square, and Seattle Center are all walkable — but prepare for steep hills. Capitol Hill, Ballard, and Fremont are each walkable neighborhoods, but you'll want transit between them. The Link light rail plus walking will cover most of what you want to see.