Visiting local bars in Rwanda is better when you know what the weather holds. These rainfall averages and temperatures can help you choose the best time for bar hopping. The hottest months are usually September and August with an average temp of 68°F, while the coldest months are June and May with an average of 65°F. The rainiest months in Rwanda are November, April, March, and December, with each month seeing an average of 8 inches of rainfall.