January weather forecast in Dublin

January in Dublin is the windiest and the coldest month of the year. In January, the weather in Dublin is typically cold. Average daily high temperature in January is about 6 degrees above zero. On average, Dublin has 16 rainy, 10 cloudy, 4 sunny, and 1 partly cloudy day in January. The rains are usually moderate. January as well as February, March, April, and May is considered the most uncomfortable time to visit Dublin.