Derry, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Derry, New Hampshire, United States, is known for the Robert Frost Farm, a historic site dedicated to the famous poet. The best time to travel to Derry, United States, is in late spring (May to June) when the average air temperature is around 60-70°F, and water temperatures in nearby lakes are approximately 55-65°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!