December weather forecast
Layou, Saint Vincent and the Grenadines

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Weather in December

December closes the year in Layou by embracing cooler temperatures from 27.4°C (81.3°F) to 26.4°C (79.5°F). A significant drop in rainfall makes December the driest month of the year, bringing in the holiday spirit. The beautiful blend of increased wind speed, cool evenings, and reduced daytime temperature marks the beginning of the winter season. The shorter daylight hours give way to longer, colder nights making December suitable for indulging in indoor activities. Despite fewer daylight hours, December stays bright with extended sunshine hours, ending the year on a pleasant note.

Temperature

With the start of December, Layou measures an average high-temperature of a still warm 27.4°C (81.3°F), not significantly differing from November's 27.9°C (82.2°F). Layou maintains an average of approximately a still warm 26.4°C (79.5°F) during December nights, with only a minimal decrease from the daytime temperature.

Heat index

In December, the heat index is computed to be a tropical 30°C (86°F). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

In Layou, the average relative humidity in December is 76%.

Rainfall

In December, the rain falls for 14.9 days. Throughout December, 23mm (0.91") of precipitation is accumulated. In Layou, during the entire year, the rain falls for 164.4 days and collects up to 289mm (11.38") of precipitation.

Sea temperature

In Layou, the average seawater temperature in December is 27.8°C (82°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

The month with the shortest days is December, with an average of 11h and 24min of daylight.
On the first day of the month, sunrise is at 06:12 and sunset at 17:36. On the last day of December, sunrise is at 06:27 and sunset at 17:49 AST.

Sunshine

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

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Layou. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In December, an average UV index of 7 transforms into the following instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. 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. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Warning! The Sun's UV rays intensify with reflections from sand and water.

Frequently asked questions

What are the temperatures in December?

The high-temperature during December is 27.4°C (81.3°F) and the low-temperature is 26.4°C (79.5°F). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in December is computed to be 30°C (86°F).

What is the average humidity in December?

In December, the average relative humidity is 76%.

How many days does it rain in December?

In December, the rain falls for 14.9 days. Throughout December, 23mm (0.91") of precipitation is accumulated.

What is the water temperature in December?

In Layou, the average seawater temperature in December is 27.8°C (82°F). 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.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 11h and 24min of daylight.

What is the average length of the day in December?

The average day length in December is 11h and 22min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 06:12 and sunset at 17:36. On the last day of the month, sunrise is at 06:27 and sunset at 17:49 AST.

What is the month with the least sunshine?

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

How many hours of sunshine does Layou have in December?

In December, the average sunshine duration is 6.6h.

What are the months with the highest UV index?

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

What are the months with the lowest UV index?

January through December, with an average maximum UV index of 7, are months with the lowest UV index in Layou.

What is the UV index reading in December?

In December, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.

Average temperature in December
Layou, Saint Vincent and the Grenadines

Average temperature in December - Layou, Saint Vincent and the Grenadines
  • Average high temperature in December: 27.4°C

The warmest month (with the highest average high temperature) is September (28.7°C).
The month with the lowest average high temperature is February (26.3°C).

  • Average low temperature in December: 26.4°C

The month with the highest average low temperature is September (27.9°C).
The coldest month (with the lowest average low temperature) is January (25.3°C).

Average pressure in December
Layou, Saint Vincent and the Grenadines

Average pressure in December - Layou, Saint Vincent and the Grenadines
  • Average pressure in December: 1013mbar

The month with the highest atmospheric pressure is June (1014.6mbar).
The month with the lowest atmospheric pressure is November (1011.1mbar).

Average wind speed in December
Layou, Saint Vincent and the Grenadines

Average wind speed in December - Layou, Saint Vincent and the Grenadines
  • Average wind speed in December: 26.6km/h

The windiest month (with the highest average wind speed) is February (28.4km/h).
The calmest month (with the lowest average wind speed) is September (19.7km/h).

Average humidity in December
Layou, Saint Vincent and the Grenadines

Average humidity in December - Layou, Saint Vincent and the Grenadines
  • Average humidity in December: 76%

The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is February (75%).

Average rainfall in December
Layou, Saint Vincent and the Grenadines

Average rainfall in December - Layou, Saint Vincent and the Grenadines
  • Average rainfall in December: 23mm

The wettest month (with the highest rainfall) is November (40mm).
The driest month (with the least rainfall) is February (12mm).

Average rainfall days in December
Layou, Saint Vincent and the Grenadines

Average rainfall days in December - Layou, Saint Vincent and the Grenadines
  • Average rainfall days in December: 14.9 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (8.7 days).

Average sea temperature in December
Layou, Saint Vincent and the Grenadines

Average sea temperature in December - Layou, Saint Vincent and the Grenadines
  • Average sea temperature in December: 27.8°C

The best month for swimming (with the highest average sea temperature) is September (29.7°C).
The coldest month (with the lowest average sea temperature) is March (27.2°C).

Average daylight in December /
Average sunshine in December
Layou, Saint Vincent and the Grenadines

Average daylight in December / Average sunshine in December - Layou, Saint Vincent and the Grenadines
  • 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 24min).

  • Average sunshine in December: 6h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

Average sunshine days in December
Layou, Saint Vincent and the Grenadines

Average sunshine days in December - Layou, Saint Vincent and the Grenadines
  • Average sunshine days in December: 12.8 days

The month with the most sunshine days is March (16.7 days).
The month with the least sunshine days is July (10.1 days).

Average UV index in December
Layou, Saint Vincent and the Grenadines

Average UV index in December - Layou, Saint Vincent and the Grenadines
  • Average UV index in December: 7

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

Average cloud cover in December
Layou, Saint Vincent and the Grenadines

Average cloud cover in December - Layou, Saint Vincent and the Grenadines
  • Average cloud cover in December: 40

The month with the most cloud cover is June (Cloud cover 44).
The months with the least cloud cover are February and September (Cloud cover 35).

Average visibility in December
Layou, Saint Vincent and the Grenadines

Average visibility in December - Layou, Saint Vincent and the Grenadines
  • Average visibility in December: 10km

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

Layou, Saint Vincent and the Grenadines

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