December weather forecast
Port of Spain, Trinidad and Tobago

December sees a significant drop in rainfall as the region prepares to transition into the drier part of the year. From 211mm in November, the recorded rainfall drops to 76mm in December. The weather establishes a more congenial atmosphere for tourists and residents, featuring a cool breeze along with a blend of short showers and longer sunshine periods. The temperatures moderate, and the daylight hours begin to increase slightly, adding to the festive cheer in Port of Spain. The city shines yet again, offering a trove of activities ranging from eco-tours, beach parties, and wildlife expeditions to grand festive celebrations.

Temperature

The average high-temperature in December, at a still hot 31.1°C, reveals a modest deviation from November's 31.5°C. Port of Spain in December anticipates an average nighttime temperature of 21°C.

Heat index

The average heat index in December is calculated to be a scorching 43°C. Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Port of Spain, the average relative humidity in December is 84%.

Rainfall

In Port of Spain, in December, it is raining for 13 days, with typically 76mm of accumulated precipitation. In Port of Spain, during the entire year, the rain falls for 166 days and collects up to 1408mm of precipitation.

Sea temperature

In December, the average sea temperature is 27°C.
Note: Water activities including swimming and diving are pleasurable in temperatures between 25°C and 29°C, ensuring comfort and enjoyment for extended time frames.

Daylight

The month with the shortest days in Port of Spain is December, with an average of 11h and 30min of daylight.
On the first day of December, 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.

Sunshine

The average sunshine in December in Port of Spain, Trinidad and Tobago, is 6.9h.

UV index

December is the month with the lowest UV index in Port of Spain, with an average maximum UV index of 9. A UV Index of 8 to 10 symbolizes a very high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 9 in December interprets into the following recommendations:
Ensure safety measures are in place, as skin and eyes are vulnerable to quick damage. 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. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Applying and reapplying a broad-spectrum sunscreen with a minimum SPF 30 after every two hours, outdoor workout, or swim is recommended. Warning! The Sun's UV rays intensify with reflections from sand and water.