Ketap, Indonesia offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Ketap, Bangka Belitung Islands, Indonesia, is known for its proximity to the beautiful beaches and granite rock formations of Tanjung Kelayang. The best time to travel to Ketap, Indonesia, is during the dry season from May to September, with average air temperatures around 27-30°C (81-86°F) and water temperatures near 28°C (82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!