Diotin, Haiti offers 1 beach perfect for sunbathing, surfing, swimming, and more. Diotin is known for the historic Fort des Oliviers and the annual Diotin Cultural Festival. The best time to travel to Diotin, Haiti, is from November to March, with average air temperatures around 75-85°F (24-29°C) and water temperatures near 80°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!