April in Ust-Tym is the windiest month of the year. In April, the weather in Ust-Tym is typically cold. Average daily high temperature in April is about 4 degrees above zero. On average, Ust-Tym has 12 partly cloudy, 6 cloudy, 5 sunny, 4 rainy, and 3 snowy days in April. The rains are usually moderate.