September in Nyuya is the rainiest month of the year. In September, the weather in Nyuya is typically cold. Average daily high temperature in September is about 7 degrees above zero. On average, Nyuya has 15 rainy, 12 cloudy, and 3 sunny days in September. The rains are usually light. September as well as January, February, March, and April is considered the most uncomfortable time to visit Nyuya.