April in Kisumu is the cloudiest month of the year. In April, the weather in Kisumu is typically warm. Average daily high temperature in April is about 27 degrees above zero. On average, Kisumu has 22 rainy, 4 cloudy, 2 sunny, and 2 partly cloudy days in April. The rains are usually heavy. April as well as May, June, July, and August is considered the most uncomfortable time to visit Kisumu.