Weather will likely play an important role when you plan your trip to Kenema, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually February and March with an average temp of 82°F, while the coldest months are January and December with an average of 77°F. The rainiest months in Kenema are August, September, July, and June, with each month seeing an average of 19 inches of rainfall.