I will be in Dunhuang on the 19 to 23 September with my kids. what about the weather?

Wong, according to previous records, the average temperature in September is from 9 to 27 Celsius Degrees. Due to the sharp temperature differences, sweater, hoodie, fleece jacket are needed in the early morning and late night. And you'd better bring sunscreen and sun glasses because of strong ultraviolet rays. I still suggest you bring a hat and a headcloth to prevent sands.