The best time to visit Dummer, New Hampshire, is during the summer months, from June to August, or in the fall, from September to October.Summer offers pleasant temperatures, typically ranging from 60°F to 80°F, ideal for outdoor activities. The Magalloway River is great for kayaking, canoeing, and fishing during this season, and the surrounding forests are great for hiking and wildlife viewing. Families often find summer ideal for enjoying the natural beauty of the area.Fall brings cooler temperatures, generally between 40°F and 60°F, and is renowned for its spectacular fall foliage. The vibrant reds, oranges, and yellows of the changing leaves make for breathtaking scenic drives along Route 16 and through the Pontook Reservoir area.