January in Kotor is the rainiest, the windiest, and the coldest month of the year. In January, the weather in Kotor is typically cold. Average daily high temperature in January is about 7 degrees above zero. On average, Kotor has 13 rainy, 12 sunny, 5 partly cloudy, and 1 cloudy day in January. The rains are usually heavy. January as well as February, March, and December is considered the most uncomfortable time to visit Kotor.