When is a good time to go to Limutai in Jixian County?

It's good to go in July, August and September (personal opinion only). I think the purpose of going to Limutai is to cool off, with mountains and water. In summer, the air is especially cool at night, and it will not be too hot during the day, because there are more trees and more water! So I think it is a good place to go there for the summer in hot weather.