Gerroa, Australia offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Gerroa, New South Wales, Australia, is known for Seven Mile Beach, a popular destination for surfing and coastal walks. The best time to travel to Gerroa, Australia, is from December to February, with average air temperatures around 25°C (77°F) and water temperatures about 22°C (72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!