If you want to enjoy lots of visitors then go during the summer months. If you would prefer less visitors and don't mind cooler weather then go during spring or early fall. My trips have always been end of September and in October. We were there very close to Halloween one year and brougth some Halloween window clings to decorate. 2013 I will going in August with Bill & Judy, Randall and Linda, and other members of our lighthouse club.