Though weather is just one factor, it can really affect your travel plans, especially if you are planning a longer stay in Taehap. The hottest months are usually August and July with an average temp of 73°F, while the coldest months are January and December with an average of 35°F. The rainiest months in Taehap are July, August, September, and June, with each month seeing an average of 9 inches of rainfall.