September in Tiksi is the rainiest month of the year. In September, the weather in Tiksi is typically cold. Average daily high temperature in September is about 3 degrees above zero. On average, Tiksi has 15 cloudy, 8 rainy, 3 sunny, 3 partly cloudy, and 1 snowy 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 Tiksi.