Weather will likely play an important role when you plan your trip to Rothbury, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August with an average temp of 66°F, while the coldest months are February and January with an average of 28°F. The snowiest months in Rothbury are January, October, February, and March, with each month seeing an average of 12 inches of snowfall.