Weather is probably a major factor when you plan your trip to Tamale, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and February with an average temp of 89°F, while the coldest months are January and December with an average of 82°F. The rainiest months in Tamale are August, September, July, and June, with each month seeing an average of 8 inches of rainfall.