Moratuwa, Sri Lanka offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Moratuwa is known for the University of Moratuwa and the Bolgoda Lake. The best time to travel to Moratuwa, 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!