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Re: February weather St. Lucia Jul 28, 2009, 10:53 PM February is definitely a good time to go to St. Lucia,as you typically have low amount of rainfall during that month. The average temperature should be about 80-85 degrees. If it happens to rain, then you usually get 10 minute showers during the day and after that the sun comes out again.
Weather on St. Lucia in December. Weather on St. Lucia in December. December marks the beginning of the high-season for travel to St. Lucia. Warm temperatures in the low-80s and relatively dry conditions make the island an perfect place to enjoy fun in the sun while most of North America is covered in winter weather.