In the first half of September in most Czech cities and villages it is still warm and quite sunny. The air warms up to + 17-20 degrees in the daytime, but at night and in the early morning it is already cool, + 12-13 degrees. By the end of the month it's getting cold by about 3-5 degrees. As a result, the average daytime temperature in September is + 14-15 degrees Celsius, and the night +10.

Despite the fact that the first month of autumn is quite clear, cloudy and cloudy days still happen. There are also rains, more often short-lived, but there are also protracted. Therefore, do not rely on luck and leave the umbrella at home, let it be with you. Do not hurt the jacket and even a light cap in case of wind. After all, the Czechs themselves say that September and October are some of the most unpredictable weather months.