Sasak, Indonesia offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Sasak, West Sumatra, Indonesia, is known for its proximity to the Mentawai Islands, renowned for world-class surfing spots. The best time to travel to Sasak, Indonesia, is from May to September, with average air temperatures around 28°C (82°F) and water temperatures near 27°C (81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!