December weather forecast
Grand Anse Beach, Saint Lucia

Weather in December

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.
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FAQ

What is the temperature in December in Grand Anse Beach?

The average high-temperature, in December, is 29°C (84.2°F), while the average low-temperature is 23°C (73.4°F).

How much does it rain in Grand Anse Beach in December?

In December, in Grand Anse Beach, Saint Lucia, the rain falls for 18 days. Throughout December, 149mm (5.87") of precipitation is accumulated.

How warm is the water in December in Grand Anse Beach?

In Grand Anse Beach, Saint Lucia, in December, the average water temperature is 27°C (80.6°F). 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.

What is the month with the shortest days in Grand Anse Beach?

The month with the shortest days is December, with an average of 11h and 19min of daylight.

How many hours of daylight does Grand Anse Beach have in December?

In Grand Anse Beach, the average day length in December is 11h and 19min.

What time are sunrise and sunset in December in Grand Anse Beach?

In December, on the first day of the month, sunrise is at 06:11 and sunset at 17:33. On the last day of the month, in Grand Anse Beach, Saint Lucia, sunrise is at 06:27 and sunset at 17:45 AST.

What is the month with the most sunshine in Grand Anse Beach?

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.

How long on average sun shines in December in Grand Anse Beach?

The average sunshine duration in December in Grand Anse Beach is 8h.

What is the month with the lowest UV index in Grand Anse Beach?

With an average maximum UV index of 8, December is the month with the lowest UV index.

What is the UV index intensity in December in Grand Anse Beach?

In December, the average daily maximum UV index in Grand Anse Beach, Saint Lucia, is 8. A UV Index value of 8 to 10 symbolizes a very high hazard to health from exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in December
Grand Anse Beach, Saint Lucia

Average temperature in December - Grand Anse Beach, Saint Lucia
  • Average high temperature in December: 29°C

The warmest months (with the highest average high temperature) are May, June, July, August, September and October (30°C).
The months with the lowest average high temperature are January and February (28°C).

  • Average low temperature in December: 23°C

The month with the highest average low temperature is July (25°C).
The coldest months (with the lowest average low temperature) are January, February and March (22°C).

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Average rainfall in December
Grand Anse Beach, Saint Lucia

Average rainfall in December - Grand Anse Beach, Saint Lucia
  • Average rainfall in December: 149mm

The wettest month (with the highest rainfall) is October (269mm).
The driest month (with the least rainfall) is March (76mm).

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Average rainfall days in December
Grand Anse Beach, Saint Lucia

Average rainfall days in December - Grand Anse Beach, Saint Lucia
  • Average rainfall days in December: 18 days

The month with the highest number of rainy days is September (25 days).
The month with the least rainy days is April (11 days).

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Average sea temperature in December
Grand Anse Beach, Saint Lucia

Average sea temperature in December - Grand Anse Beach, Saint Lucia
  • Average sea temperature in December: 27°C

The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are February and March (26°C).

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Average daylight in December /
Average sunshine in December
Grand Anse Beach, Saint Lucia

Average daylight in December / Average sunshine in December - Grand Anse Beach, Saint Lucia
  • Average daylight in December: 11h and 2min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in December: 8h

The months with the most sunshine are January, February, March, April, May, June, July, August, September, November and December (Average sunshine: 8h).
The month with the least sunshine is October (Average sunshine: 7h).

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Average UV index in December
Grand Anse Beach, Saint Lucia

Average UV index in December - Grand Anse Beach, Saint Lucia
  • Average UV index in December: 8

The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).

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