December weather forecast and climate
Vieux Fort, Saint Lucia

Weather in December

December, the first month of the winter, in Vieux Fort, is still a warm month, with average temperature ranging between min 26.2°C (79.2°F) and max 27.9°C (82.2°F).

Temperature

In December, the average high-temperature is relatively the same as in November - a still warm 27.9°C (82.2°F). In Vieux Fort, the average low-temperature is 26.2°C (79.2°F).

Heat index

The average heat index is estimated at a tropical 31.1°C (88°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, pregnancy, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in December is 75%.

Rainfall

In December, the rain falls for 18.7 days. Throughout December, 37mm (1.46") of precipitation is accumulated. Throughout the year, there are 232.4 rainfall days, and 542mm (21.34") of precipitation is accumulated.

Sea temperature

In Vieux Fort, 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

The month with the shortest days in Vieux Fort is December, with an average of 11.3h of daylight.

Sunshine

With an average of 6.6h of sunshine, December has the least sunshine of the year in Vieux Fort, Saint Lucia.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Vieux Fort. A UV Index value of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 7 in December interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 Vieux Fort?

In Vieux Fort, Saint Lucia, in December, the average high-temperature is 27.9°C (82.2°F), and the average low-temperature is 26.2°C (79.2°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, in December is evaluated at 31.1°C (88°F).

What is the average humidity in December in Vieux Fort?

In December, the average relative humidity in Vieux Fort is 75%.

How much does it rain in Vieux Fort in December?

In Vieux Fort, during December, the rain falls for 18.7 days and regularly aggregates up to 37mm (1.46") of precipitation.

What is the water temperature in December in Vieux Fort?

In Vieux Fort, Saint Lucia, in December, the average water temperature is 27.8°C (82°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 Vieux Fort?

With an average of 11.3h of daylight, December has the shortest days of the year in Vieux Fort.

How many hours of daylight does Vieux Fort have in December?

In December, the average length of the day in Vieux Fort, Saint Lucia, is 11.3h.

What is the month with the least sunshine in Vieux Fort?

The month with the least sunshine in Vieux Fort is December, with an average of 6.6h of sunshine.

How long on average sun shines in December in Vieux Fort?

In December, the average sunshine is 6.6h.

What are the months with the highest UV index in Vieux Fort?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Vieux Fort.

What is the month with the lowest UV index in Vieux Fort?

January through December, with an average maximum UV index of 7, are months with the lowest UV index in Vieux Fort, Saint Lucia.

What is the UV index reading in December in Vieux Fort?

In December, the average daily maximum UV index in Vieux Fort, Saint Lucia, is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to the UV radiation.

Average temperature in December
Vieux Fort, Saint Lucia

Average temperature in December - Vieux Fort, Saint Lucia
  • Average high temperature in December: 27.9°C

The warmest months (with the highest average high temperature) are September and October (29.5°C).
The month with the lowest average high temperature is February (26.8°C).

  • Average low temperature in December: 26.2°C

The month with the highest average low temperature is September (27.6°C).
The coldest month (with the lowest average low temperature) is February (25.3°C).

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Average pressure in December
Vieux Fort, Saint Lucia

Average pressure in December - Vieux Fort, Saint Lucia
  • Average pressure in December: 1013.2mbar

The month with the highest atmospheric pressure is June (1014.9mbar).
The month with the lowest atmospheric pressure is November (1011.3mbar).

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Average wind speed in December
Vieux Fort, Saint Lucia

Average wind speed in December - Vieux Fort, Saint Lucia
  • Average wind speed in December: 24.9km/h

The windiest month (with the highest average wind speed) is February (26.9km/h).
The calmest month (with the lowest average wind speed) is September (18.3km/h).

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Average humidity in December
Vieux Fort, Saint Lucia

Average humidity in December - Vieux Fort, Saint Lucia
  • Average humidity in December: 75%

The month with the highest relative humidity is July (77%).
Months with the lowest relative humidity are January and February (74%).

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Average rainfall in December
Vieux Fort, Saint Lucia

Average rainfall in December - Vieux Fort, Saint Lucia
  • Average rainfall in December: 37mm

The wettest month (with the highest rainfall) is October (73mm).
The driest month (with the least rainfall) is February (18mm).

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Average rainfall days in December
Vieux Fort, Saint Lucia

Average rainfall days in December - Vieux Fort, Saint Lucia
  • Average rainfall days in December: 18.7 days

The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is February (15 days).

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Average sea temperature in December
Vieux Fort, Saint Lucia

Average sea temperature in December - Vieux Fort, Saint Lucia
  • Average sea temperature in December: 27.8°C

The best month for swimming (with the highest average sea temperature) is September (29.6°C).
The coldest months (with the lowest average sea temperature) are February and March (27.2°C).

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Average daylight in December /
Average sunshine in December
Vieux Fort, Saint Lucia

Average daylight in December / Average sunshine in December - Vieux Fort, Saint Lucia
  • Average daylight in December: 11.3h

The month with the longest days is June (Average daylight: 12.9h).
The month with the shortest days is December (Average daylight: 11.3h).

  • Average sunshine in December: 6.6h

The month with the most sunshine is August (Average sunshine: 10.4h).
The month with the least sunshine is December (Average sunshine: 6.6h).

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Average sunshine days in December
Vieux Fort, Saint Lucia

Average sunshine days in December - Vieux Fort, Saint Lucia
  • Average sunshine days in December: 9 days

The month with the most sunshine days is March (9.1 days).
The month with the least sunshine days is July (3.6 days).

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Average UV index in December
Vieux Fort, Saint Lucia

Average UV index in December - Vieux Fort, Saint Lucia
  • Average UV index in December: 7

Months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

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Average cloud cover in December
Vieux Fort, Saint Lucia

Average cloud cover in December - Vieux Fort, Saint Lucia
  • Average cloud cover in December: 41

The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is February (Cloud cover 35).

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Average visibility in December
Vieux Fort, Saint Lucia

Average visibility in December - Vieux Fort, Saint Lucia
  • Average visibility in December: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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