What to wear when going to Chengdu now?

Down jacket.

1. The average temperature in Chengdu in December is between 5 and 12 degrees. There is a large temperature difference between morning and evening, and the temperature will be lower at night. Wearing a down jacket can effectively keep you warm and prevent colds and cold weather from affecting your health.

2. The climate in Chengdu is humid and the moisture content in the air is high. This humid climate will make people feel colder. Wearing a down jacket can effectively isolate humid air and keep the body warm and dry. So wear a down jacket.