December weather forecast
Gros Islet, Saint Lucia

Towards the end of the year, Gros Islet sees a notable reduction in rainfall, down to 149mm (5.87"), and a further reduction in daylight hours to 11.3. The sea temperatures take a definite dip, moving down to 27.8°C (82°F). The month offers a respite from the heavy rains experienced during previous months. As daylight hours continue to reduce, the city starts embracing its mild winter charm. The progressive decline in temperatures signals the onset of cooler months, culminating the year's weather journey.

Temperature

The initiation of December in Gros Islet records an average high-temperature of a still warm 29°C (84.2°F), displaying a near consistency with the previous month. Gros Islet reports an average low-temperature of 23°C (73.4°F) during the nights of December.

Rainfall

In Gros Islet, in December, during 18 rainfall days, 149mm (5.87") of precipitation is typically accumulated. In Gros Islet, Saint Lucia, during the entire year, the rain falls for 209 days and collects up to 2035mm (80.12") of precipitation.

Sea temperature

In Gros Islet, in December, the average water temperature is 27.8°C (82°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

With an average of 11h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 06:12 and sunset at 17:33. On the last day of the month, sunrise is at 06:27 and sunset at 17:46 AST.

Sunshine

January through September, November and December, with an average of 8h of sunshine, are months with the most sunshine in Gros Islet, Saint Lucia.

UV index

December is the month with the lowest UV index in Gros Islet, with an average maximum UV index of 8. A UV Index value of 8 to 10 symbolizes a very high health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 8 in December converts into the following recommendations:
Be sure to take precautions. Without protection, skin might suffer damage quickly. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take heed! Reflections of sand and water make the Sun's UV rays stronger.