01
Spring and autumn are the safest defaults
April to June and September to November often give comfortable walking weather for classic cities and many culture routes.
02
Western routes need seasonal matching
Xinjiang, Tibet, Qinghai, Gansu, and western Sichuan depend more on road access, altitude, temperature, and landscape timing.
03
Plan around crowd pressure
Major public holidays can affect trains, flights, hotels, and scenic areas. A private route should leave more buffer around peak periods.
