What clothes should Yanji wear in May?

Wear a T-shirt inside and a thin coat outside.

It's cold in the morning and evening and hot at noon.

This is my invincible way of dressing in Yanji for 20 years.

The temperature difference between day and night is large. Wearing only one long sleeve will be hot for a while at noon, and wearing only short sleeves will be cold sooner or later.