Weather will likely play an important role when you plan your trip to Cajueiro da Praia, and keep in mind that cheaper options are usually available when the weather isn’t as good. The hottest months are usually September and October with an average temp of 82°F, while the coldest months are July and June with an average of 81°F. The rainiest months in Cajueiro da Praia are April, March, February, and May, with each month seeing an average of 10 inches of rainfall.