Guaxuma, Brazil offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Guaxuma, Rio de Janeiro, Brazil, is known for its beautiful beaches and vibrant local culture. The best time to travel to Guaxuma, Brazil, is from September to March, with average air temperatures around 80°F (27°C) and water temperatures near 79°F (26°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!