April in Riohacha is the cloudiest month of the year. In April, the weather in Riohacha is typically hot. Average daily high temperature in April is about 31 degrees above zero. On average, Riohacha has 19 rainy, 10 cloudy, and 1 sunny day in April. The rains are usually heavy. April as well as May, June, July, and August is considered the most uncomfortable time to visit Riohacha.