If you're looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Bwindi: The hottest months are usually February and July, with an average temperature of 20°C, while the coldest months are December and November, with an average of 19°C. The rainiest months in Bwindi are April, May, October and September, with each month seeing an average of 292 mm of rainfall.