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The average day light hours per day in St Lucia in February are 11.7 and there are 4.7 hours of sunshine per day on average during February making it a sunny month that is overcast at times. The ultraviolet index in St Lucia in February is typically 11.6 during February.
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.