August would be a good time to visit Himachal Pradesh. It is just a peaceful town on the National highway to Shimla. As I said, it looks beautifully green in monsoon time, Prashar lake is also one of the top offbeat places in Himachal to visit in August. Kullu Manali, Dharamshala, Shimla, Dalhousie, Khajjiar, Chamba, Chail, and Kufri are the best places to visit in Himachal Pradesh during the monsoon season.