Weather will likely play an important role when you plan your trip to Bermejo, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually January and December with an average temp of 78°F, while the coldest months are July and June with an average of 62°F. The rainiest months in Bermejo are February, January, December, and March, with each month seeing an average of 9 inches of rainfall.