December weather forecast
Kingston, Jamaica

December rings in milder weather conditions in Kingston. Compared to the previous month, temperatures drop slightly giving a pleasant feel to the city's climate. It also showcases a marked decline in rainfall to 47mm (1.85"), marking December as a relatively drier month. In spite of reduced daylight hours, the weather remains typically tropical, forging an inviting end to the year.

Temperature

With the advent of December, Kingston experiences an average high-temperature of a still hot 30.6°C (87.1°F), mirroring a close resemblance to the previous month. Throughout December, Kingston registers a consistent average low-temperature of 21.8°C (71.2°F).

Heat index

The average heat index in December is evaluated at a very hot 38°C (100.4°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In December, the average relative humidity is 74%.

Rainfall

In Kingston, in December, it is raining for 6 days, with typically 47mm (1.85") of accumulated precipitation. Throughout the year, in Kingston, there are 93 rainfall days, and 813mm (32.01") of precipitation is accumulated.

Sea temperature

In Kingston, the average seawater temperature in December is 28.3°C (82.9°F).
Note: Water temperature ranging between 25°C (77°F) and 29°C (84.2°F) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.

Daylight

December has the shortest days of the year, with an average of 11h and 6min of daylight.
On the first day of the month, sunrise is at 06:22 and sunset at 17:30. On the last day of December, in Kingston, sunrise is at 06:38 and sunset at 17:42 EST.

Sunshine

In December, the average sunshine in Kingston, Jamaica, is 7.6h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 8. A UV Index value of 8 to 10 symbolizes a very high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 8 in December translates into the following recommendations:
It is essential to prioritize protection. Unprotected skin and eyes can suffer rapid harm. 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. Stay sun-safe with clothing that is both closely woven and worn loosely. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.