London vs Washington, D.C.

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.

Washington, D.C.

Washington, DC has a humid subtropical climate with four distinct seasons. Summers are famously hot and sticky (the city was built on reclaimed swampland), while winters are cold but rarely extreme. Spring and fall are glorious and are the best times to visit.

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.

Washington, D.C.

DC has an excellent public transit system run by WMATA (Washington Metropolitan Area Transit Authority). The Metro (subway) and Metrobus cover the city and much of the Maryland and Virginia suburbs. A SmarTrip card (or contactless phone tap) works across all Metro, bus, and Capital Bikeshare. Driving downtown is frustrating and parking is very expensive — transit or walking is the way to go.

Walkability: Central DC is one of the most walkable cities in the US, with wide sidewalks, a clear street grid, and short blocks. The National Mall itself is longer than it looks on maps (roughly 3 km end to end), so plan accordingly. Georgetown and Capitol Hill are especially pleasant on foot, though some DC hills can be steep.