January in Bratislava is the snowiest, the cloudiest, and the coldest month of the year. In January, the weather in Bratislava is typically cold. Average daily high temperature in January is about 2 degrees above zero. On average, Bratislava has 10 partly cloudy, 9 cloudy, 5 rainy, 5 sunny, and 2 snowy days in January. The rains are usually light. January as well as February, March, November, and December is considered the most uncomfortable time to visit Bratislava.