Matta Kotuwa, Sri Lanka offers 1 beach perfect for sunbathing, surfing, swimming, and more. Matta Kotuwa, North Western Province, Sri Lanka, is known for the historic Yapahuwa Rock Fortress. The best time to travel to Matta Kotuwa, Sri Lanka, is from December to March, with average air temperatures around 27°C (81°F) and water temperatures near 28°C (82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!