Chilaw, Sri Lanka offers 1 beach perfect for sunbathing, surfing, swimming, and more. Chilaw is known for the Munneswaram Temple and its vibrant annual festival. The best time to travel to Chilaw, 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!