December weather forecast
Arnos Vale, Saint Vincent and the Grenadines

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Weather in December

December rings in a pleasant closure to the year in Arnos Vale, complemented by scenic weather patterns. During this month, rainfall decreases further to an average of 39mm (1.54"), signifying a move towards the drier January period. Humidity levels are lower compared to the earlier months, yet temperature profiles remain impressively stable. The refreshing 'Christmas breezes' return, providing a blissful ambience to complete the circle of Arnos Vale's climatic charm. The favourable weather conditions present an ideal setting for holiday celebrations and outdoor festivities, ensuring visitors’ experiences are both memorable and enjoyable.

Temperature

Arnos Vale experiences a minor change to a still warm 27.6°C (81.7°F) in average high-temperature during December, closely reflecting November. Maintaining close parity with daytime warmth, the average nocturnal temperature during December stays at a still warm 26.5°C (79.7°F).

Heat index

The heat index value during December is computed to be a tropical 31°C (87.8°F). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Arnos Vale, in December, it is raining for 19.5 days, with typically 39mm (1.54") of accumulated precipitation. In Arnos Vale, during the entire year, the rain falls for 238.6 days and collects up to 627mm (24.69") of precipitation.

Daylight

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

Sunshine

December has the least sunshine of the year, with an average of 6.4h 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. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: During December, 7 as the daily maximum UV index converts into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.

Frequently asked questions

What are December temperatures?

The average high-temperature, in December, in Arnos Vale, is 27.6°C (81.7°F), while the average low-temperature is 26.5°C (79.7°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in December is computed to be 31°C (87.8°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 Arnos Vale, in December, it is raining for 19.5 days, with typically 39mm (1.54") of accumulated precipitation.

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 in Arnos Vale?

In Arnos Vale, the average day length in December is 11h and 22min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 06:11 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 6.4h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 6.4h.

What is the month with the highest UV index?

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

When is the lowest UV index?

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

What is the UV index intensity in December?

In Arnos Vale, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.

Average temperature in December
Arnos Vale, Saint Vincent and the Grenadines

Average temperature in December - Arnos Vale, Saint Vincent and the Grenadines
  • Average high temperature in December: 27.6°C

The warmest month (with the highest average high temperature) is September (28.8°C).
The month with the lowest average high temperature is February (26.5°C).

  • Average low temperature in December: 26.5°C

The month with the highest average low temperature is September (28°C).
The coldest month (with the lowest average low temperature) is February (25.7°C).

Average pressure in December
Arnos Vale, Saint Vincent and the Grenadines

Average pressure in December - Arnos Vale, Saint Vincent and the Grenadines
  • Average pressure in December: 1012.9mbar

The month with the highest atmospheric pressure is June (1014.5mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).

Average wind speed in December
Arnos Vale, Saint Vincent and the Grenadines

Average wind speed in December - Arnos Vale, Saint Vincent and the Grenadines
  • Average wind speed in December: 27.8km/h

The windiest month (with the highest average wind speed) is February (29.3km/h).
The calmest month (with the lowest average wind speed) is September (20.6km/h).

Average humidity in December
Arnos Vale, Saint Vincent and the Grenadines

Average humidity in December - Arnos Vale, 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
Arnos Vale, Saint Vincent and the Grenadines

Average rainfall in December - Arnos Vale, Saint Vincent and the Grenadines
  • Average rainfall in December: 39mm

The wettest month (with the highest rainfall) is August (94mm).
The driest month (with the least rainfall) is February (23mm).

Average rainfall days in December
Arnos Vale, Saint Vincent and the Grenadines

Average rainfall days in December - Arnos Vale, Saint Vincent and the Grenadines
  • Average rainfall days in December: 19.5 days

The month with the highest number of rainy days is August (24.3 days).
The month with the least rainy days is February (14.8 days).

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

Average daylight in December / Average sunshine in December - Arnos Vale, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in December
Arnos Vale, Saint Vincent and the Grenadines

Average sunshine days in December - Arnos Vale, Saint Vincent and the Grenadines
  • Average sunshine days in December: 6.2 days

The months with the most sunshine days are February and March (9.3 days).
The month with the least sunshine days is July (1.7 days).

Average UV index in December
Arnos Vale, Saint Vincent and the Grenadines

Average UV index in December - Arnos Vale, 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
Arnos Vale, Saint Vincent and the Grenadines

Average cloud cover in December - Arnos Vale, Saint Vincent and the Grenadines
  • Average cloud cover in December: 41

The month with the most cloud cover is July (Cloud cover 46).
The months with the least cloud cover are January and February (Cloud cover 37).

Average visibility in December
Arnos Vale, Saint Vincent and the Grenadines

Average visibility in December - Arnos Vale, 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).

Arnos Vale, Saint Vincent and the Grenadines

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