The best time to visit Saint Lucia is January through December. In this period you have a warm temperature and little precipitation. On the island of Saint Lucia, the warmest month is September with 87°F and the coldest is February with 81°F.
In the table below you can quickly find the average monthly weather in Saint Lucia, the temperature per month or the period with the highest rainfall. Monthly average climate data is based on data from the last 30 years.
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The weather for Saint Lucia over the next 14 days will be 82°F till 86° with every day chance of light rain showers or even quite a bit of rain. The water temperature will be 84°F.
The weather forecast for Saint Lucia is based on the weather in Castries.
Saint Lucia has a tropical rainforest climate. It is usually (very) warm, humid and rainy all year round. The average annual temperature for Saint Lucia is 55° degrees and there is about 179 inch of rain in a year. It is dry for 63 days a year with an average humidity of 74% and an UV-index of 7.
What is the average Saint Lucia weather like in a given month? Let's find out! Click on a month to check all the monthly averages for sunshine, temperature highs and lows, percentage chance of rain per day, snowfall accumulation and number of rainy days.
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82°F
84°F