Koattagoda, Sri Lanka offers 1 beach perfect for sunbathing, surfing, swimming, and more.  Koattagoda is known for its proximity to the Sinharaja Forest Reserve, a UNESCO World Heritage Site.  The best time to travel to Koattagoda, 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!