The ideal time to visit Dunhuang is during the spring (April to early June) and autumn (September to October). These seasons offer the most comfortable weather, with pleasant daytime temperatures, cool nights and minimal rainfall. It's perfect for exploring the Mogao Caves, hiking the sand dunes and visiting outdoor sites without extreme heat or cold.

Always check the Mogao Caves' official reservation website for ticket availability, as daily visitor numbers are strictly limited year-round to protect the fragile artifacts.