Telaga Bertong, Indonesia offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Telaga Bertong, West Nusa Tenggara, Indonesia, is known for its proximity to the stunning Mount Rinjani and the beautiful Gili Islands. The best time to travel to Telaga Bertong, 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!