Nilaveli Beach, Sri Lanka offers 1 beach perfect for sunbathing, surfing, swimming, and more. Nilaveli Beach, Eastern Province, Sri Lanka, is known for Pigeon Island National Park. The best time to visit Nilaveli Beach, Sri Lanka, is from May to September, when the average air temperature is around 28-32°C (82-90°F) and the water temperature is approximately 27-29°C (81-84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!