Taking into account the local weather in Oltu is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually August and July with an average temp of 62°F, while the coldest months are January and February with an average of 22°F. The snowiest months in Oltu are March, February, January, and November, with each month seeing an average of 33 inches of snowfall.