1 1 month 1 1 day What's the weather like in Dalian? What's appropriate to wear?

Last year, it rained around 1 1, and it was sunny from the 3rd to the 5th. Generally speaking, wearing a long-sleeved T-shirt is enough, but the weather in Dalian is not very stable this year. In September, it will be fine if it reaches 16 to 19 degrees in the morning and evening. If you are traveling, it is recommended to bring a small coat. The main concern is the weather forecast.