Visiting local bars in Kirundo is more fun in good weather. These temperatures and rainfall averages can help you choose the best time for bar hopping. The hottest months are usually August and September with an average temp of 70°F, while the coldest months are December and January with an average of 67°F. The rainiest months in Kirundo are November, December, April, and March, with each month seeing an average of 9 inches of rainfall.