Saint Augustine Beach, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Saint Augustine Beach is known for its proximity to the historic Castillo de San Marcos and the beautiful Anastasia State Park. The best time to travel to Saint Augustine Beach is from March to May, with average air temperatures ranging from 65°F to 85°F and water temperatures around 70°F to 75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!