In September, the weather in Nychalakh is typically cold. Average daily high temperature in September is about 4 degrees above zero. On average, Nychalakh has 19 cloudy, 7 rainy, 3 sunny, and 1 partly cloudy day in September. The rains are usually light. September as well as January, February, March, and April is considered the most uncomfortable time to visit Nychalakh.