Harmonia, Brazil offers 1 beach perfect for sunbathing, surfing, swimming, and more. Harmonia is known for the Harmonia Waterfall and the annual Harmonia Grape Festival. The best time to travel to Harmonia, Brazil, is from March to May, with average air temperatures around 70-80°F (21-27°C) and water temperatures near 75°F (24°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!