Warilla, Australia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Warilla, New South Wales, Australia, is known for Warilla Beach and Lake Illawarra. The best time to travel to Warilla, Australia, is from December to February, with average air temperatures around 25°C (77°F) and water temperatures near 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!