I am going to travel to Chengdu, Jiuzhaigou and Huanglong. What should I wear during these two days?

Bring a thicker jacket. The temperature difference there is relatively large. The current temperature is about 13 degrees to 23 degrees. It will be cold when it rains. If you are afraid of the cold, it is better to bring more clothes than to have no clothes at all. There are places for renting cold weather clothing in Jiuzhaigou, but I didn’t see anyone selling clothes.