December in Karasu is the windiest month of the year. In December, the weather in Karasu is typically warm. Average daily high temperature in December is about 10 degrees above zero. On average, Karasu has 11 sunny, 9 rainy, 9 partly cloudy, and 2 cloudy days in December. The rains are usually heavy. December as well as January and February is considered the most uncomfortable time to visit Karasu.