Bornholm, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Bornholm, the city is known for its picturesque landscapes and historical sites like Hammershus Castle. Western Australia, the city is known for its stunning natural attractions such as the Pinnacles Desert and Ningaloo Reef. Australia, the city is known for iconic landmarks like the Sydney Opera House and the Great Barrier Reef. The best time to travel to Bornholm is during the summer months of June to August, with average air temperatures around 20°C (68°F) and water temperatures around 17°C (63°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!