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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.
The average sea temperature for St Lucia is pleasantly warm all-year-round. In November, itâs 28Â°C â thatâs 1Â°C cooler than in October â which is definitely warm enough to do swimming, despite the drop in temperature. Because of the tropical climate, St Lucia remains humid throughout the year.