August in Koforidua is the windiest and the coldest month of the year. In August, the weather in Koforidua is typically warm. Average daily high temperature in August is about 27 degrees above zero. On average, Koforidua has 25 rainy, 3 cloudy, and 3 partly cloudy 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 Koforidua.