Sigaol Simbolon, Indonesia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sigaol Simbolon is known for its proximity to Lake Toba, a large natural lake in North Sumatra, Indonesia. The best time to travel to Sigaol Simbolon, Indonesia, is from May to September, with average air temperatures around 25-30°C (77-86°F) and water temperatures around 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!