Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's onset brings an average high-temperature of a still moderately hot 27.6°C (81.7°F), showing a minute difference from November's 28.2°C (82.8°F). During December, Castara's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 26.6°C (79.9°F).Heat index
For December, the heat index is evaluated at a hot 31°C (87.8°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. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
The average relative humidity in December in Castara is 77%.Rainfall
In Castara, during December, the rain falls for 27.1 days and regularly aggregates up to 104mm (4.09") of precipitation. Throughout the year, in Castara, Trinidad and Tobago, there are 282.6 rainfall days, and 1136mm (44.72") of precipitation is accumulated.Daylight
December has the shortest days of the year in Castara, with an average of 11h and 30min of daylight.On the first day of December, sunrise is at 06:06 and sunset at 17:37. On the last day of the month, sunrise is at 06:21 and sunset at 17:50 AST.
Sunshine
December has the least sunshine of the year, with an average of 6.3h of sunshine.UV index
The months with the highest UV index in Castara are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 7 suggests these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What are December temperatures in Castara?
What is the average humidity in December in Castara?
How many days does it rain in December in Castara?
What is the month with the shortest days in Castara?
What is the average length of the day in December in Castara?
When is the sunrise / sunset in December in Castara?
What is the month with the least sunshine in Castara?
How long on average sun shines in December in Castara?
What is the month with the highest UV index in Castara?
What are the months with the lowest UV index in Castara?
What is the UV index intensity in December in Castara?
Average temperature in December
Castara, Trinidad and Tobago
- 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 (26.7°C).
- Average low temperature in December: 26.6°C
The month with the highest average low temperature is September (27.9°C).
The coldest month (with the lowest average low temperature) is February (25.8°C).
Average pressure in December
Castara, Trinidad and Tobago
- Average pressure in December: 1012.4mbar
The month with the highest atmospheric pressure is June (1013.9mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in December
Castara, Trinidad and Tobago
- Average wind speed in December: 27.4km/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 (20.3km/h).
Average humidity in December
Castara, Trinidad and Tobago
- Average humidity in December: 77%
The months with the highest relative humidity are May, June and July (79%).
The month with the lowest relative humidity is September (76%).
Average rainfall in December
Castara, Trinidad and Tobago
- Average rainfall in December: 104mm
The wettest month (with the highest rainfall) is October (150mm).
The driest month (with the least rainfall) is April (37mm).
Average rainfall days in December
Castara, Trinidad and Tobago
- Average rainfall days in December: 27.1 days
The month with the highest number of rainy days is July (27.5 days).
The month with the least rainy days is April (18.7 days).
Average daylight in December /
Average sunshine in December
Castara, Trinidad and Tobago
- Average daylight in December: 11h and 3min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in December
Castara, Trinidad and Tobago
- Average sunshine days in December: 2.2 days
The months with the most sunshine days are February and April (5.2 days).
The month with the least sunshine days is June (2 days).
Average UV index in December
Castara, 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
Castara, Trinidad and Tobago
- Average cloud cover in December: 43
The month with the most cloud cover is June (Cloud cover 45).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility in December
Castara, 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).
Castara, Trinidad and Tobago
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