I'm going to Aba on business recently. What clothes should I bring between May and July? What problems should we pay attention to? Thank you!

I don't know which county in Aba Prefecture you are going to. If you are in Maoxian, Lixian and Wenchuan counties, you can wear short sleeves during the day, but you still have to wear a thin coat sooner or later. If you are in Neixian county, you'd better bring some thick clothes. If it is near Neixian County, the basic altitude is high. Even if it's very hot, it's best not to wear short sleeves. The ultraviolet rays are very strong and the skin is easy to get sunburned. You can wear long sleeves. It's very cold in Neixian County. Many people have altitude sickness. We should be prepared and respect the living habits and customs of Tibetans inside. There are probably so many customs. You can also ask me any questions. I come from Aba Prefecture.