Port Aransas, United States offers 12 beaches perfect for sunbathing, surfing, swimming, and more. Port Aransas is known for Mustang Island, Port Aransas Beach, and the Texas SandFest. The best time to travel to Port Aransas is from March to May, with average air temperatures ranging from 70°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!