January in Zadar is the coldest month of the year. In January, the weather in Zadar is typically cold. Average daily high temperature in January is about 8 degrees above zero. On average, Zadar has 11 rainy, 10 sunny, 6 partly cloudy, and 4 cloudy days in January. The rains are usually heavy. January as well as February, March, November, and December is considered the most uncomfortable time to visit Zadar.