The best time to visit New Durham, New Hampshire, is during the summer months, from June to August, when the weather is ideal for outdoor activities, and during the fall, from late September to October, for stunning foliage.Summer in New Durham offers warm temperatures, typically in the 70s and 80s Fahrenheit, making it superb for enjoying the lakes and hiking trails. Families will find this time particularly appealing for swimming, boating on Merrymeeting Lake, or exploring the many trails in the surrounding forests. The longer daylight hours also allow for extended outdoor enjoyment.For couples or those seeking picturesque scenery, the fall season is unparalleled. The region transforms with vibrant reds, oranges, and yellows as the leaves change, creating breathtaking landscapes ideal for scenic drives and photography.