August in Lagos is the coldest month of the year. In August, the weather in Lagos is typically warm. Average daily high temperature in August is about 27 degrees above zero. On average, Lagos has 25 rainy, 3 cloudy, 2 partly cloudy, and 1 sunny day in August. The rains are usually heavy. August as well as February, March, April, and May is considered the most uncomfortable time to visit Lagos.