In October, the weather in Sosnowiec is typically warm. Average daily high temperature in October is about 13 degrees above zero. On average, Sosnowiec has 11 rainy, 9 partly cloudy, 6 sunny, and 5 cloudy days in October. The rains are usually moderate. October as well as January, February, March, and April is considered the most uncomfortable time to visit Sosnowiec.