Montellano, Dominican Republic offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Monte Cristi, Dominican Republic, is known for the Monte Cristi National Park and El Morro. The best time to travel to Montellano, Dominican Republic, is from December to April, with average air temperatures around 77-86°F (25-30°C) and water temperatures near 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!