December weather forecast
Greenville, Liberia

As the year comes to a close, Greenville's weather in December reveals a decrease in rainfall to about 95mm (3.74"). This marks a transition into the drier months, just as the New Year begins. However, despite the decreasing precipitation, December has more rainy days compared to November. Temperature-wise, the town experiences slightly cooler days. Likewise, consistent with the decreasing trend of daylight hours since September, December ends the year with the least number of daylight hours.

Temperature

The transition into December reveals an average high-temperature of a still moderately hot 29.4°C (84.9°F), mirroring a close resemblance to November. Greenville's December nights witness minimal differential from the daytime temperatures, with averages of 24.7°C (76.5°F).

Heat index

The heat index in December is calculated to be a very hot 36°C (96.8°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. 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. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In December, the average relative humidity is 80%.

Rainfall

In Greenville, in December, during 25.4 rainfall days, 95mm (3.74") of precipitation is typically accumulated. Throughout the year, there are 294.8 rainfall days, and 1200mm (47.24") of precipitation is accumulated.

Sea temperature

In Greenville, in December, the average water temperature is 28.8°C (83.8°F).
Note: For water activities like swimming, diving, and more, temperatures ranging between 25°C (77°F) and 29°C (84.2°F) offer superior comfort and enjoyment for lengthy durations.

Daylight

With an average of 11h and 48min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 06:29 and sunset at 18:20. On the last day of the month, sunrise is at 06:44 and sunset at 18:34 GMT.

Sunshine

The average sunshine in December is 8.7h.

UV index

The months with the highest UV index are January through May and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 7 suggests these recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.