Planning for the weather is a good way to make your trip to Muyinga relaxing and enjoyable, especially when you're splurging. 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 Muyinga are November, December, April, and March, with each month seeing an average of 9 inches of rainfall.