Travel to Dunhuang, Gansu on September 26th. What is the temperature? What do I need to wear?

Travel to Dunhuang, Gansu on September 26th. What is the temperature? What should I wear? Dunhuang is very hot now, and the temperature difference between day and night is very large. I come from Hexi, Gansu. The average temperature in Dunhuang at the end of September is about 15℃, and the temperature in the morning and evening is not higher than 10℃. If it is sunny at noon, it will be around 20℃. I suggest you go to Dunhuang to wear a long-sleeved T-shirt (or shirt), a thin sweater and long-sleeved trousers (very important), and a slightly thicker coat, but don't. It won't be hot in Dunhuang in September, so it's cold to prepare clothes. This is a desert area, so there is a great temperature difference between day and night. Dress reasonably and change clothes without catching a cold! I hope you have a wonderful trip! Wear long sleeves and short sleeves when traveling, and it is best to bring sunscreen. Hello, I'm from Hexi, Gansu. The average temperature in Dunhuang at the end of September is about 15℃, and the temperature in the morning and evening is not higher than 10℃. If it is sunny at noon, it will be around 20℃. I suggest you wear a long-sleeved T-shirt (or shirt), a thin sweater and trousers (very important) in Dunhuang. The coat is a little thicker, but don't bring it in winter! It won't be hot in Dunhuang in September, so it's cold to prepare clothes. This is a desert area, so there is a great temperature difference between day and night. Dress reasonably and change clothes without catching a cold! Have a nice trip.