December weather forecast
Fort George, Jamaica

December, the first month of the winter in Fort George, is still a warm month, with temperature in the range of an average high of 28.9°C (84°F) and an average low of 21.5°C (70.7°F).

Temperature

The transition into December marks the average high-temperature at a still warm 28.9°C (84°F), differing minimally from November's 29.7°C (85.5°F). Fort George observes an average nighttime low-temperature of 21.5°C (70.7°F) during the month of December.

Heat index

December's average heat index is computed to be a sweltering 35°C (95°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. 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 'feels like' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The months with the highest humidity are October through December, with an average relative humidity of 81%.

Rainfall

In December, the rain falls for 19.9 days. Throughout December, 42mm (1.65") of precipitation is accumulated. Throughout the year, in Fort George, there are 265.1 rainfall days, and 806mm (31.73") of precipitation is accumulated.

Daylight

With an average of 11h and 6min of daylight, December has the shortest days of the year in Fort George.
On the first day of the month, sunrise is at 06:24 and sunset at 17:31. On the last day of December, sunrise is at 06:40 and sunset at 17:44 EST.

Sunshine

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

UV index

The months with the lowest UV index are January through April, September, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a regular UV index of 6 translates into these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.