O Sullivan Beach, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. O Sullivan Beach is known for its proximity to the McLaren Vale wine region and the stunning coastline of the Fleurieu Peninsula. The best time to visit O'Sullivan Beach, Australia, is during the summer months from December to February, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 21°C (70°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
