: September to November offers crisp breezes and changing leaves, while March to May features the iconic National Cherry Blossom Festival .
: Popular sites like the White House , U.S. Capitol tours , and the National Museum of African American History and Culture require booking weeks or months in advance.
: A historic waterfront neighborhood with cobblestone streets, colonial-era architecture, and high-end shopping. Seasonal Planning
: Generally cold but less crowded, with holiday displays around the White House and National Mall . Transportation & Navigation