Taking into account the local weather in Kisumu is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually February and March with an average temp of 75°F, while the coldest months are June and July with an average of 71°F. The rainiest months in Kisumu are April, May, November, and October, with each month seeing an average of 12 inches of rainfall.