Weather will likely play an important role when you plan your trip to Bururi, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually September and August, with an average temperature of 20°C, while the coldest months are June and May, with an average of 18°C. The rainiest months in Bururi are November, April, December and March, with each month seeing an average of 202 mm of rainfall.