Weather can make or break a roadtrip, so we've gathered some data about year-round temperatures in Sehonghong to help you plan yours. The hottest months are usually January and December with an average temp of 61°F, while the coldest months are July and June with an average of 47°F. The rainiest months in Sehonghong are December, January, February, and November, with each month seeing an average of 7 inches of rainfall.