April in Sanandaj is the rainiest month of the year. In April, the weather in Sanandaj is typically warm. Average daily high temperature in April is about 15 degrees above zero. On average, Sanandaj has 13 sunny, 12 rainy, and 5 partly cloudy days in April. The rains are usually moderate. April as well as January, February, March, and November is considered the most uncomfortable time to visit Sanandaj.