December weather forecast
Grand Anse Beach, Saint Lucia

The first month of the winter, December, is still a warm month in Grand Anse Beach, Saint Lucia, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 29°C (84.2°F).

Temperature

In Grand Anse Beach, the average high-temperature in December remains equal as in November - a still warm 29°C (84.2°F). The average low-temperature, in Grand Anse Beach, is 23°C (73.4°F).

Rainfall

In Grand Anse Beach, during 18 rainfall days, 149mm (5.87") of precipitation is typically accumulated. Throughout the year, in Grand Anse Beach, there are 209 rainfall days, and 2035mm (80.12") of precipitation is accumulated.

Sea temperature

In Grand Anse Beach, the average water temperature is 27°C (80.6°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

With an average of 11h and 19min of daylight, December has the shortest days of the year in Grand Anse Beach.
On the first day of the month, sunrise is at 06:11 and sunset at 17:33. On the last day of December, in Grand Anse Beach, sunrise is at 06:27 and sunset at 17:45 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, Saint Lucia.

UV index

With an average maximum UV index of 8, December is the month with the lowest UV index in Grand Anse Beach. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 8 in December interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.