Portballintrae, United Kingdom offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Portballintrae is known for its proximity to the Giant's Causeway and Dunluce Castle. The best time to visit Portballintrae, United Kingdom, is from June to August, with average air temperatures around 15-18°C (59-64°F) and sea temperatures around 13-15°C (55-59°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!