December weather forecast
Grand Anse Beach, Saint Lucia

December greets Grand Anse Beach with a further decrease in rainfall to 149mm (5.87"). The dropping temperature, sea warmth, decreasing daylight, and UV index all point towards the advent of the cooler season. Despite this, the daytime remains comfortably warm, with temperatures averaging from 29°C (84.2°F) to 23°C (73.4°F). The relatively lower sea temperature of 27°C (80.6°F) provides an invigorating contrast. The end of the year may bring changes in weather, but it doesn't diminish the beach charm that Grand Anse offers year-round.

Temperature

Grand Anse Beach, Saint Lucia, records a high-temperature average of a still moderately hot 29°C (84.2°F) in December, showing no difference from November. Grand Anse Beach records a consistent low-temperature of 23°C (73.4°F) during December nights.

Rainfall

In December, in Grand Anse Beach, Saint Lucia, the rain falls for 18 days. Throughout December, 149mm (5.87") of precipitation is accumulated. Throughout the year, there are 209 rainfall days, and 2035mm (80.12") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature in Grand Anse Beach is 27°C (80.6°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.

Daylight

The month with the shortest days is December, with an average of 11h and 18min of daylight.
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 Grand Anse Beach.

UV index

December is the month with the lowest UV index in Grand Anse Beach, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 8 in December translates into the following recommendations:
Prioritize protection; rapid damage can occur to unprotected eyes and skin. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Attention! UV radiation is markedly stronger with water and sand reflections.