On what day in September will you wear a coat?

According to climate change, the temperature difference between morning and evening in September is large, and the temperature difference between day and night is large, so it is necessary to wear a coat. Specifically, after the Millennium solar term on September 7, the climate in some areas became cold and it was necessary to wear a coat. On the other hand, from September 10 to 20, in most cases, you wear a blouse or a thin shirt with half sleeves in the morning and evening, but from 20 to 30, you can wear a bottoming shirt and a small coat outside, which is enough to cope with the temperature at this time.

Please note that this is only a general reference, and the specific dressing arrangements need to be decided according to the weather forecast and personal temperature of the day.