April in Izium is the rainiest month of the year. In April, the weather in Izium is typically warm. Average daily high temperature in April is about 15 degrees above zero. On average, Izium has 11 rainy, 8 sunny, 8 partly cloudy, and 3 cloudy days in April. The rains are usually light. April as well as February, March, October, and November is considered the most uncomfortable time to visit Izium.