December weather forecast
Saint Augustine, Trinidad and Tobago

December

Weather in December

The first month of the winter, December, is still a warm month in Saint Augustine, Trinidad and Tobago, with an average temperature varying between 25.5°C (77.9°F) and 28.5°C (83.3°F).

Temperature

Saint Augustine's average high-temperature in December sits at a still warm 28.5°C (83.3°F), showing little difference from the previous month. Saint Augustine, in December, registers an average low temperature of 25.5°C (77.9°F), showing a minute reduction from daily highs.

Heat index

The heat index value for December is calculated to be a tropical 33°C (91.4°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Heat index details are generally centered around shaded locations and a mild breeze. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

The average relative humidity in December is 78%.

Rainfall

In Saint Augustine, in December, during 18.3 rainfall days, 44mm (1.73") of precipitation is typically accumulated. Throughout the year, in Saint Augustine, there are 194.8 rainfall days, and 640mm (25.2") of precipitation is accumulated.

Daylight

The month with the shortest days in Saint Augustine is December, 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 Saint Augustine, sunrise is at 06:23 and sunset at 17:54 AST.

Sunshine

The month with the least sunshine in Saint Augustine is December, with an average of 6.7h of sunshine.

UV index

The months with the highest UV index in Saint Augustine are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Saint Augustine, 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 health hazard from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 7 in December suggests the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

How hot does it get in Saint Augustine in December?
The high-temperature in Saint Augustine during December is 28.5°C (83.3°F) and the low-temperature is 25.5°C (77.9°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in December is calculated to be 33°C (91.4°F).
What is the average humidity in December in Saint Augustine?
In December, the average relative humidity in Saint Augustine, Trinidad and Tobago, is 78%.
How much does it rain in Saint Augustine in December?
In Saint Augustine, in December, during 18.3 rainfall days, 44mm (1.73") of precipitation is typically accumulated.
What is the month with the shortest days in Saint Augustine?
December has the shortest days of the year in Saint Augustine, Trinidad and Tobago, with an average of 11h and 30min of daylight.
What is the average length of the day in December in Saint Augustine?
The average day length in December in Saint Augustine is 11h and 31min.
When is the sunrise / sunset in December in Saint Augustine?
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, sunrise is at 06:23 and sunset at 17:54 AST.
What is the month with the least sunshine in Saint Augustine?
The month with the least sunshine in Saint Augustine, Trinidad and Tobago, is December, with an average of 6.7h of sunshine.
How many hours of sunshine does Saint Augustine have in December?
The average sunshine duration in December in Saint Augustine is 6.7h.
When is the highest UV index in Saint Augustine?
The months with the highest UV index in Saint Augustine are January through December, with an average maximum UV index of 7.
When is the lowest UV index in Saint Augustine?
January through December, with an average maximum UV index of 7, are months with the lowest UV index in Saint Augustine, Trinidad and Tobago.
What is the UV index reading in December in Saint Augustine?
In Saint Augustine, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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
Saint Augustine, 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).

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