Weather can make or break a road trip, so here's some data about year-round temperatures in Tkvarcheli to help you plan yours: The hottest months are usually August and July, with an average temperature of 19°C, while the coldest months are January and February, with an average of 4°C. The rainiest months in Tkvarcheli are March, September, July and June, with each month seeing an average of 180 mm of rainfall.