Ondina, Brazil offers 1 beach perfect for sunbathing, surfing, swimming, and more. Ondina is known for its beautiful beaches and vibrant Carnival celebrations. The best time to travel to Ondina, Brazil, is from December to March, when the average air temperature is around 80°F (27°C) and the water temperature is approximately 82°F (28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!