Taking into account the local weather in Campos Novos Paulista is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually September and October with an average temp of 75°F, while the coldest months are July and June with an average of 66°F. The rainiest months in Campos Novos Paulista are January, February, December, and March, with each month seeing an average of 9 inches of rainfall.