New Alexandria, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. New Alexandria is known for Keystone State Park, which offers outdoor recreational activities and scenic natural beauty. The best time to travel to New Alexandria, United States, is in late spring (May), when the average air temperature is around 65°F (18°C) and water temperature is approximately 60°F (16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!