December in Bottrop is the windiest and the cloudiest month of the year. In December, the weather in Bottrop is typically cold. Average daily high temperature in December is about 5 degrees above zero. On average, Bottrop has 19 rainy, 10 cloudy, and 2 sunny days in December. The rains are usually moderate. December as well as January, February, March, and November is considered the most uncomfortable time to visit Bottrop.