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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.
St Lucia: Annual Weather Averages. November is the hottest month in St Lucia with an average temperature of 29Â°C (83Â°F) and the coldest is January at 26Â°C (79Â°F) with the most daily sunshine hours at 10 in March.The wettest month is September with an average of 193mm of rain.t Lucia: Annual Weather Averages. November is the hottest month in St Lucia with an average temperature of 29Â°C (83Â°F) and the coldest is January at 26Â°C (79Â°F) with the most daily sunshine hours at 10 in March.