Mattiro Tasi, Indonesia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Mattiro Tasi, South Sulawesi, Indonesia, is known for its proximity to the vibrant marine biodiversity of the Spermonde Archipelago. The best time to travel to Mattiro Tasi, 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!