Membalong, Indonesia offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Membalong, Bangka Belitung Islands, Indonesia, is known for its stunning beaches like Penyusuk Beach and the unique Batu Baginde rock formations. The best time to travel to Membalong, Indonesia, is from May to September, with average air temperatures around 27-30°C (81-86°F) and water temperatures approximately 28-29°C (82-84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!