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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.
Even though it only happens on an average of 10% of days, temperatures can sometimes rise above 30Â°C and fall below 22Â°C in St Lucia in December. The hottest temperature ever recorded on the island at this time of year is 33Â°C, whilst the coldest temperature ever registered here during this month is 16Â°C.he average sea temperature for St Lucia stays pleasantly warm throughout the year. In December, itâs 28Â°C â thatâs the same as last month â which is certainly warm enough for a swim. Thanks to its tropical climate, St Lucia remains humid all-year-round.