Port O'Connor, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Port O'Connor, Texas, United States, is known for the Matagorda Island Wildlife Management Area and its excellent fishing opportunities. The best time to travel to Port O'Connor, United States, 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!