Port Bolivar, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Port Bolivar is known for the Bolivar Peninsula, the Bolivar Lighthouse, and the Crystal Beach. The best time to travel to Port Bolivar, United States, is from March to May, when the average air temperature is around 70-80°F and the water temperature is approximately 65-75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!