Weather will likely play an important role when you plan your trip to Josefsthal, 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 55°F, while the coldest months are January and February with an average of 26°F. The rainiest months in Josefsthal are July, May, June, and August, with each month seeing an average of 9 inches of rainfall.