December weather forecast
Arouca, Trinidad and Tobago

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Weather in December

In Arouca, Trinidad and Tobago, December's climate introduces a gentler end to the year, characterized by a significant reduction in rainfall, spiralling down to 44mm (1.73"). The change in weather brings with it a soothing end to the year's climatic chapter. As it bridges the gap to the year's start, one notes that the wind speed, cloud coverage and daylight hours correspondingly drop. Looking forward, January is forecast to continue this trend, promising a pleasing start to the New Year.

Temperature

The advent of December brings an average high-temperature of a still moderately hot 28.5°C (83.3°F), almost identical to the preceding month. Arouca's nighttime temperature in December experiences a slight dip from daytime highs, falling to an average of 25.5°C (77.9°F).

Heat index

During December, the heat index is estimated at a hot 33°C (91.4°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

The average relative humidity in December in Arouca is 78%.

Rainfall

In Arouca, during December, the rain falls for 18.3 days and regularly aggregates up to 44mm (1.73") of precipitation. In Arouca, during the entire year, the rain falls for 194.8 days and collects up to 640mm (25.2") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 30min of daylight.
On the first day of the month, sunrise is at 06:08 and sunset at 17:41. On the last day of December, in Arouca, sunrise is at 06:23 and sunset at 17:54 AST.

Sunshine

December has the least sunshine of the year in Arouca, with an average of 6.7h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Arouca. The months with the lowest UV index in Arouca, Trinidad and Tobago, are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In December, a regular UV index of 7 translates into these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

How hot is December in Arouca?

The average high-temperature and low-temperature in Arouca, Trinidad and Tobago, during December are 28.5°C (83.3°F) and 25.5°C (77.9°F) respectively. In December, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 33°C (91.4°F).

What is the average humidity in December in Arouca?

The average relative humidity in December is 78%.

How much does it rain in Arouca in December?

In Arouca, in December, during 18.3 rainfall days, 44mm (1.73") of precipitation is typically accumulated.

What is the month with the shortest days in Arouca?

The month with the shortest days is December, with an average of 11h and 30min of daylight.

What is the average length of the day in December in Arouca?

The average day length in December in Arouca, Trinidad and Tobago, is 11h and 31min.

When is the sunrise / sunset in December in Arouca?

In December, on the first day of the month, sunrise is at 06:08 and sunset at 17:41. On the last day of the month, in Arouca, sunrise is at 06:23 and sunset at 17:54 AST.

What is the month with the least sunshine in Arouca?

With an average of 6.7h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Arouca have in December?

In December, the average sunshine duration in Arouca, Trinidad and Tobago, is 6.7h.

What are the months with the highest UV index in Arouca?

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

When is the lowest UV index in Arouca?

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

What is the UV index reading in December in Arouca?

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

Average temperature in December
Arouca, Trinidad and Tobago

Average temperature in December - Arouca, Trinidad and Tobago
  • Average high temperature in December: 28.5°C

The warmest month (with the highest average high temperature) is September (30.1°C).
The month with the lowest average high temperature is January (27.9°C).

  • Average low temperature in December: 25.5°C

The month with the highest average low temperature is October (26.6°C).
The coldest months (with the lowest average low temperature) are January and February (24.8°C).

Average pressure in December
Arouca, Trinidad and Tobago

Average pressure in December - Arouca, Trinidad and Tobago
  • Average pressure in December: 1012.3mbar

The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).

Average wind speed in December
Arouca, Trinidad and Tobago

Average wind speed in December - Arouca, Trinidad and Tobago
  • Average wind speed in December: 17.1km/h

The windiest month (with the highest average wind speed) is February (18.3km/h).
The calmest month (with the lowest average wind speed) is August (13.6km/h).

Average humidity in December
Arouca, Trinidad and Tobago

Average humidity in December - Arouca, Trinidad and Tobago
  • Average humidity in December: 78%

The month with the highest relative humidity is July (79%).
The months with the lowest relative humidity are February, March and April (75%).

Average rainfall in December
Arouca, Trinidad and Tobago

Average rainfall in December - Arouca, Trinidad and Tobago
  • Average rainfall in December: 44mm

The wettest month (with the highest rainfall) is October (115mm).
The driest month (with the least rainfall) is February (14mm).

Average rainfall days in December
Arouca, Trinidad and Tobago

Average rainfall days in December - Arouca, Trinidad and Tobago
  • Average rainfall days in December: 18.3 days

The month with the highest number of rainy days is August (22.2 days).
The months with the least rainy days are February and April (10.3 days).

Average daylight in December /
Average sunshine in December
Arouca, Trinidad and Tobago

Average daylight in December / Average sunshine in December - Arouca, Trinidad and Tobago
  • Average daylight in December: 11h and 3min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in December: 6h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in December
Arouca, Trinidad and Tobago

Average sunshine days in December - Arouca, Trinidad and Tobago
  • Average sunshine days in December: 8.7 days

The months with the most sunshine days are March and April (15.9 days).
The month with the least sunshine days is August (6.8 days).

Average UV index in December
Arouca, Trinidad and Tobago

Average UV index in December - Arouca, Trinidad and Tobago
  • 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
Arouca, Trinidad and Tobago

Average cloud cover in December - Arouca, Trinidad and Tobago
  • Average cloud cover in December: 38

The month with the most cloud cover is June (Cloud cover 40).
The month with the least cloud cover is September (Cloud cover 27).

Average visibility in December
Arouca, Trinidad and Tobago

Average visibility in December - Arouca, Trinidad and Tobago
  • 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).

Arouca, Trinidad and Tobago

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