Boa Vista Do Sul, Brazil offers 1 beach perfect for sunbathing, surfing, swimming, and more. Boa Vista Do Sul is not widely recognized for travel and beach tourism. The best time to travel to Boa Vista do Sul, Brazil, is from March to May, when the average air temperature ranges from 18°C to 25°C (64°F to 77°F) and water temperatures are generally mild, around 22°C (72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!