In April, the weather in Ust-Koksa is typically cold. Average daily high temperature in April is about 4 degrees above zero. On average, Ust-Koksa has 10 rainy, 8 sunny, 8 partly cloudy, and 4 cloudy days in April. The rains are usually moderate. April as well as January, February, May, and June is considered the most uncomfortable time to visit Ust-Koksa.