Planning for the weather is an important factor for making your trip to Tojang-gol a success, especially when you're splurging. The hottest months are usually August and July with an average temp of 74°F, while the coldest months are January and December with an average of 40°F. The rainiest months in Tojang-gol are July, August, September, and June, with each month seeing an average of 9 inches of rainfall.