In September, the weather in Tczew is typically warm. Average daily high temperature in September is about 17 degrees above zero. On average, Tczew has 17 partly cloudy, 9 sunny, 3 rainy, and 1 cloudy day in September. The rains are usually light. September as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Tczew.