Emerald Beach, Australia offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Emerald Beach, New South Wales, Australia, is known for its proximity to the Solitary Islands Marine Park and Moonee Beach Nature Reserve. The best time to visit Emerald Beach, Australia, is from December to February, with average air temperatures around 25°C (77°F) and water temperatures near 23°C (73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!