Muara Badak, Indonesia offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Muara Badak is known for its proximity to the Mahakam River and the Kutai National Park. The best time to travel to Muara Badak, Indonesia, is from June to September, with average air temperatures around 28°C (82°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!