Weather will likely play an important role when you plan your trip to Salinópolis, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually October and November with an average temp of 81°F, while the coldest months are July and June with an average of 78°F. The rainiest months in Salinópolis are March, April, February, and May, with each month seeing an average of 16 inches of rainfall.