Does Chengdu wear down jacket in February?

Need to wear it. The average temperature in Chengdu in February is about 5 degrees Celsius. It may reach about 8 degrees Celsius during the day and 2 degrees Celsius at night. Although it is much warmer than the north. But we still need a thinner down jacket or a thinner cotton-padded jacket, because the temperature difference between morning and evening is relatively large, and it is a little cold when there is no sun.