August in Kayes is the rainiest and the cloudiest month of the year. In August, the weather in Kayes is typically hot. Average daily high temperature in August is about 32 degrees above zero. On average, Kayes has 11 partly cloudy, 8 rainy, 7 cloudy, and 5 sunny days in August. The rains are usually heavy. August as well as March, April, May, and June is considered the most uncomfortable time to visit Kayes.