Colombo, Sri Lanka offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Colombo is known for the Gangaramaya Temple, Galle Face Green, and the National Museum of Colombo. The best time to visit Colombo, Sri Lanka, is from January to March, with average air temperatures around 27°C (81°F) and sea 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!