Vandenberg, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Vandenberg, California, United States, is known for Vandenberg Space Force Base, which is a prominent site for space launches and missile testing. The best time to travel to Vandenberg, United States, is from June to September, with average air temperatures around 65-75°F (18-24°C) and water temperatures near 60-65°F (15-18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!