I went to Dalian in May 1. How's the weather? What clothes and shoes do you need to wear?

Dalian has been quite cool recently. It's ok to wear a thin sweater indoors. Now it's about 16- 17 degrees outside. Dalian has a maritime climate and is very humid. The beach is humid, so you can wear single shoes, and sandals are not needed. If it is cold, it is easy to get windy. It is recommended to wear windbreaker, suit and shirt. You can take it off if you wear too much, but it will freeze if you wear too little!