Beijing's peak tourist seasons are from April to October (especially during the May Day holiday, summer vacation, and National Day holiday). Tips to avoid crowds: visit on weekdays, arrive at popular sites like the Forbidden City or the Great Wall before 8:00 AM or 2 hours before closing time; prefer the off-season (November–March) for fewer crowds and beautiful scenery; skip national holidays and explore non-traditional spots like Hutongs or the 798 Art Zone instead.