Tuktuk Siadong, Indonesia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Tuktuk Siadong is known for its proximity to Lake Toba, the largest volcanic lake in the world. The best time to travel to Tuktuk Siadong, Indonesia, is from May to September, with average air temperatures around 25-30°C (77-86°F) and water temperatures approximately 27-29°C (81-84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!