Negombo, Sri Lanka offers 13 beaches perfect for sunbathing, surfing, swimming, and more. Negombo is known for its beautiful beaches and vibrant fishing industry. The best time to travel to Negombo, 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!