Weather is probably a major factor when you plan your trip to Caucaia, 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 August with an average of 80°F. The rainiest months in Caucaia are April, March, February, and May, with each month seeing an average of 8 inches of rainfall.