Kellits, Jamaica offers 1 beach perfect for sunbathing, surfing, swimming, and more. Kellits, Saint Mary, Jamaica, is known for its proximity to the scenic Blue Mountains and the historic Port Maria. The best time to travel to Kellits, Jamaica, is from December to April, with average air temperatures around 75-85°F (24-29°C) and water temperatures near 81°F (27°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!