December weather forecast
Mandeville, Jamaica

December in Mandeville brings forth cooler temperatures, making it one of the chilliest months of the year. While the barometer drops, the town maintains its pleasantly warm temperatures. Compared to November, the number of sunshine hours increases marginally to 6.3, allowing residents to enjoy outdoor activities during the day. As January approaches, Mandeville gears up to welcome the new year with predictable pleasant weather.

Temperature

A minimal variation is noted in Mandeville's average high-temperature at the onset of December, reaching a still moderately hot 27.1°C (80.8°F) from November's 27.9°C (82.2°F). Mandeville observes an average low-temperature of 19.6°C (67.3°F) during December nights.

Heat index

The heat index value during December is calculated to be a hot 30°C (86°F). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

The average relative humidity in December in Mandeville is 85%.

Rainfall

In Mandeville, in December, it is raining for 23.9 days, with typically 65mm (2.56") of accumulated precipitation. Throughout the year, there are 297.9 rainfall days, and 1472mm (57.95") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 6min of daylight.
On the first day of the month, sunrise is at 06:25 and sunset at 17:33. On the last day of December, sunrise is at 06:41 and sunset at 17:45 EST.

Sunshine

In Mandeville, Jamaica, the average sunshine in December is 6.3h.

UV index

In Mandeville, the average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 6 during December translates into the following guidance:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.