December weather forecast
Saint Lucia

December in Saint Lucia marks the onset of the dry season, with a further decline in rainfall across the island. Despite the change in season, temperatures remain consistently tropical, ranging from an average low of 23°C (73.4°F) at night to a warm 29°C (84.2°F) during the day.

Rainfall in December significantly decreases from November, averaging 125mm (4.92") for the month. The showers, often occurring in the afternoon or evening, become less frequent, providing more hours of bright sunshine. This shift in weather makes December an inviting month for outdoor activities and exploration.

From the capital, Castries, to Soufrière and Rodney Bay, the weather conditions across Saint Lucia remain remarkably uniform. The coastal areas continue to experience cooler evenings due to the influence of sea breezes, a welcomed relief after the warm daytime hours.

As December transitions into January, the weather remains largely consistent. The temperatures hold steady within their tropical range, and the rainfall maintains its reduced level, as Saint Lucia firmly settles into the dry season. The island's weather continues to be characterized by warm, sunny days interspersed with occasional light showers, maintaining its vibrant, tropical charm.

---

• Gros Islet - December »
  January through September, November and December, with an average of 8h of sunshine, are months with the most sunshine in Gros Islet, Saint Lucia. In Gros Islet in December, the average water temperature is 27.8°C (82°F).
• Vieux Fort - December »
  January through December, with an average maximum UV index of 7, are months with the lowest UV index in Vieux Fort, Saint Lucia. The months with the lowest UV index in Vieux Fort are January through December, with an average maximum UV index of 7.
• Dennery - December »
  The month with the shortest days in Dennery is December, with an average of 11h and 18min of daylight. On the first day of December in Dennery, sunrise is at 06:12 and sunset at 17:33.
• Micoud - December »
  In Micoud in December, during 18.7 rainfall days, 37mm (1.46") of precipitation is typically accumulated. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Micoud, Saint Lucia.
• Marigot Bay - December »
  The month with the shortest days in Marigot Bay, Saint Lucia, is December, with an average of 11h and 18min of daylight. In Marigot Bay during December, the rain falls for 19.1 days and regularly aggregates up to 35mm (1.38") of precipitation.
• Anse La Raye - December »
  In Anse La Raye in December, during 19.1 rainfall days, 35mm (1.38") of precipitation is typically accumulated. In Anse La Raye in December, the average water temperature is 28°C (82.4°F).
• Canaries - December »
  December in Canaries, Saint Lucia brings the cool charm of the winter season, yet without the biting chill of snowy regions. In December, in Canaries the rain falls for 19.1 days.
• Praslin - December »
  Rounding out the year, December in Praslin, Saint Lucia signals the resumption of the dry season through a consistent decrease in rainfall to 37mm (1.46"). The months with the highest UV index in Praslin are January through December, with an average maximum UV index of 7.
• Cap Estate - December »
  In December, in Cap Estate the rain falls for 19.1 days. In Cap Estate, Saint Lucia, the average sunshine duration in December is 6.4h.
• Babonneau - December »
  With an average of 11h and 18min of daylight, December has the shortest days of the year in Babonneau. In Babonneau, in December, during 19.1 rainfall days, 35mm (1.38") of precipitation is typically accumulated.