Sainthamaruthu, Sri Lanka offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sainthamaruthu is known for its proximity to the scenic Kumana National Park and the historic city of Batticaloa. The best time to travel to Sainthamaruthu, Sri Lanka, is from January to March, with average air temperatures around 27-30°C (81-86°F) and water temperatures about 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!