Sebagin, Indonesia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Sebagin, Bangka Belitung Islands, Indonesia, is known for its beautiful beaches and the nearby Lepar Island. The best time to travel to Sebagin, Indonesia, is from May to September, with average air temperatures around 27°C (81°F) and water temperatures near 29°C (84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!