Green Cape, Australia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Green Cape, New South Wales, Australia, is known for the Green Cape Lighthouse and Ben Boyd National Park. The best time to travel to Green Cape, Australia, is from December to February, with average air temperatures around 20-25°C (68-77°F) and water temperatures around 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!