February in Portlaoise is the windiest month of the year. In February, the weather in Portlaoise is typically cold. Average daily high temperature in February is about 8 degrees above zero. On average, Portlaoise has 13 rainy, 8 partly cloudy, 6 cloudy, and 2 sunny days in February. The rains are usually moderate. February as well as January, March, April, and May is considered the most uncomfortable time to visit Portlaoise.