Sirombu, Indonesia offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Sirombu is known for its proximity to the Hinako Islands, which are popular for surfing and beautiful beaches. The best time to travel to Sirombu, 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!