January in Trinec is the snowiest, the cloudiest, and the coldest month of the year. In January, the weather in Trinec is typically freezing. Average daily high temperature in January is about zero. On average, Trinec has 10 cloudy, 9 partly cloudy, 4 rainy, 4 snowy, and 4 sunny days in January. The rains are usually moderate. January as well as February, March, April, and May is considered the most uncomfortable time to visit Trinec.