Weather will likely play an important role when you plan your trip to Ibiuna, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually February and December with an average temp of 71°F, while the coldest months are July and June with an average of 63°F. The rainiest months in Ibiuna are January, December, February, and March, with each month seeing an average of 9 inches of rainfall.