February in St.Lucia is the hottest month of the year. In February, the weather in St.Lucia is typically hot. Average daily high temperature in February is about 29 degrees above zero. On average, St.Lucia has 13 rainy, 9 sunny, 6 partly cloudy, and 1 cloudy day in February. The rains are usually heavy. February as well as January, March, November, and December is considered the most uncomfortable time to visit St.Lucia.