Is Jiuzhaigou cold in September?

According to Chengdu Easytour International Travel Service, the temperature in Jiuzhaigou rises rapidly and stably in summer (July-September), with an average temperature of 19-22 degrees. It won't be cold to go to Jiuzhaigou at this time, and it is also the tourist season in Jiuzhaigou. September is the most comfortable month except July and August, so as far as the weather is concerned, September is better than most months.