Weather will likely play an important role when you plan your trip to Rolea B'ier, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and April with an average temp of 85°F, while the coldest months are January and December with an average of 81°F. The rainiest months in Rolea B'ier are September, October, May, and August, with each month seeing an average of 10 inches of rainfall.