August in Sikachi-Alyan is the rainiest and the cloudiest month of the year. In August, the weather in Sikachi-Alyan is typically warm. Average daily high temperature in August is about 24 degrees above zero. On average, Sikachi-Alyan has 16 rainy, 7 partly cloudy, 5 sunny, and 3 cloudy days in August. The rains are usually heavy.