Guia de Pacobaiba, Brazil offers 1 beach perfect for sunbathing, surfing, swimming, and more. Guia de Pacobaiba, Rio de Janeiro, Brazil, is known for the historic Guia de Pacobaiba Railway Station, which was the terminus of the first railroad in Brazil. The best time to travel to Guia de Pacobaiba, Brazil, is from May to September, 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!