January in Mersin is the rainiest, the cloudiest, and the coldest month of the year. In January, the weather in Mersin is typically warm. Average daily high temperature in January is about 12 degrees above zero. On average, Mersin has 19 sunny, 10 partly cloudy, and 2 rainy days in January. The rains are usually moderate. January as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most uncomfortable time to visit Mersin.