Koggala, Sri Lanka offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Koggala is known for its beautiful beaches and the Martin Wickramasinghe Folk Museum. The best time to travel to Koggala, 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!