Castelhanos, Brazil offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Dudley, Massachusetts, United States, is known for its scenic rural landscapes and historical sites. The best time to travel to Castelhanos, Brazil, is from April to September, when the average air temperature ranges from 20°C to 28°C (68°F to 82°F) and the water temperature is around 24°C to 26°C (75°F to 79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!