Sinnamuhattuvaram, Sri Lanka offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sinnamuhattuvaram is known for its proximity to the scenic beaches and cultural heritage sites in the Eastern Province of Sri Lanka. The best time to travel to Sinnamuhattuvaram, 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!