The average temperature in Chengdu in early September is 20℃-28℃, and it is 28℃ during the day. The weather is cool and won't be wet. You can wear long-sleeved T-shirts, hooded sweaters, long skirts and windbreakers.

Chengdu is located in the subtropical monsoon climate zone, which is rich in heat and rainfall, with four distinct seasons and both rain and heat. There is no intense heat in summer, less snow and ice in winter, mild climate, long summer and short winter, long frost-free period, heavy rain in autumn and night, low wind speed, high humidity, more clouds and less sunshine.