Alpine, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Alpine, New Jersey, United States, is known for its luxurious estates and proximity to the Palisades Interstate Park. The best time to travel to Alpine, United States, is in late spring or early fall when the average air temperature is around 70°F and water temperature in nearby lakes is approximately 60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!