Conceicao de Jacarei, Brazil offers 1 beach perfect for sunbathing, surfing, swimming, and more. Conceicao de Jacarei is known for its beautiful beaches and as a gateway to Ilha Grande. The best time to travel to Conceição de Jacareí, Brazil, is from December to March, when the average air temperature is around 77°F (25°C) and the water temperature is approximately 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!