Casuarina Beach, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Casuarina Beach is known for its stunning coastline and proximity to the popular tourist destination of Byron Bay. The best time to visit Casuarina Beach, Australia, is from December to February, with average air temperatures around 25-30°C (77-86°F) and water temperatures about 24-27°C (75-81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!