Weather will likely play an important role when you plan your trip to Fairlie, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually February and January with an average temp of 45°F, while the coldest months are July and August with an average of 27°F. The rainiest months in Fairlie are May, September, December, and July, with each month seeing an average of 14 inches of rainfall.