April in Cascavel is the rainiest, the cloudiest, and the coldest month of the year. In April, the weather in Cascavel is typically hot. Average daily high temperature in April is about 29 degrees above zero. On average, Cascavel has 25 rainy and 5 sunny days in April. The rains are usually heavy. April as well as January, February, March, and May is considered the most uncomfortable time to visit Cascavel.