Wennappuwa, Sri Lanka offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Dymchurch is known for the Romney, Hythe and Dymchurch Railway, a popular tourist attraction. The best time to travel to Wennappuwa, 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!