I want to go to Jiuzhaigou in May 18. What's the weather like? What clothes should I bring?

The weather in Aba Prefecture is changeable, and it is normal to rain outside the ditch. So it is recommended to bring rain gear. There are many ultraviolet rays, so you should bring sunscreen, sunglasses and sun hat. You need to bring a long-sleeved T-shirt (out of the sun) and a medium-thick coat (out of the sun), a pair of thin slacks (out of the sun) and a pair of long jeans (out of the sun). Anyway, clothes in spring and autumn are ok. You can buy a shawl when it is cold, and it is not expensive for tens of dollars.