The best time to go to Cornamucklagh is during the months of May, June, and September. These months offer the most pleasant weather for exploring the area.During May and June, the days are longer and generally sunnier, with temperatures that are comfortable for outdoor activities like walking or visiting historical sites. You'll find the countryside is lush and green, and there's a good chance of enjoying mild evenings.September also provides a lovely experience, with the summer crowds having thinned out, but the weather often remains mild and agreeable. The autumn colours can start to emerge in the surrounding landscapes, offering a different kind of beauty.