Surry, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Surry, New Hampshire, United States, is known for the Surry Mountain Lake and the Surry Mountain Dam. The best time to travel to Surry, United States, is in late spring (May to June) when the average air temperature is around 70°F (21°C) and water temperature is approximately 65°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!