Caplen, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Caplen, Texas, United States, is known for its proximity to the Bolivar Peninsula and the scenic beaches along the Gulf of Mexico. The best time to travel to Caplen, United States, is from March to May, with average air temperatures ranging from 65°F to 80°F and water temperatures around 70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!