What are the specialties of Suzhou and Hangzhou, West Lake and Xitang? What's the temperature now? What clothes are suitable for wearing?

When I was in Hangzhou, I talked about too many specialties, such as West Lake Longjing, silk, etc. Everyone is familiar with them. There are many other things. After you come, I want to look around and choose. As for the temperature, there has been cold air in the last two days and it is cooling down. The highest temperature is about ten degrees, and the lowest is about seven or eight degrees. I want a thin T-shirt inside and a slightly thicker coat outside. It is estimated that it will get better when it comes on the tenth. You can look at the weather forecast again then. If the highest temperature is above 20 degrees, long-sleeved or short-sleeved T-shirts are ok, and thin coats are also ok.