Denham, Australia offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Denham is known for its proximity to the UNESCO World Heritage-listed Shark Bay, famous for its marine life and natural beauty. The best time to travel to Denham, Australia, is from April to October, with average air temperatures ranging from 18°C to 26°C and water temperatures around 22°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!