The best time to go to Milan, New Hampshire, is during the summer months, from June to August, or in the autumn, from September to October.Summer offers the warmest weather, with average temperatures in the low to mid-20s Celsius, making it ideal for outdoor activities such as hiking, fishing, and boating on the local lakes and rivers. The days are long, allowing for extended exploration of the surrounding White Mountain National Forest. It's a great time for families looking to enjoy nature and outdoor adventures.Autumn is particularly popular for its stunning foliage. The landscape transforms into a breathtaking display of reds, oranges, and yellows, drawing visitors who come to experience the scenic drives and hiking trails. Temperatures are cooler, typically ranging from 10 to 18 degrees Celsius, which is great for comfortable walks and enjoying the crisp air.