Weather can make or break a roadtrip, so here's some data about year-round temperatures in Mitzic to help you plan yours: The hottest months are usually February and January with an average temp of 77°F, while the coldest months are July and August with an average of 74°F. The rainiest months in Mitzic are October, November, April, and May, with each month seeing an average of 12 inches of rainfall.