Saint Marc, Haiti offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Saint Marc is known for its proximity to the historic Fort des Oliviers and the beautiful beaches of Cotes des Arcadins. The best time to travel to Saint Marc, Haiti, is from November to March, with average air temperatures around 77-82°F (25-28°C) and water temperatures about 79-82°F (26-28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!