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

In Greenville, December's average high-temperature stands at a still moderately hot 29.4°C (84.9°F), closely related to the preceding month. Greenville experiences a steady nighttime temperature of 24.7°C (76.5°F) throughout the month of December.

Heat index

The heat index for December is evaluated at a fiery hot 36°C (96.8°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In December, the average relative humidity is 80%.

Rainfall

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

Sea temperature

In Greenville, the average seawater temperature in December is 28.8°C (83.8°F).
Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.

Daylight

December has the shortest days of the year, with an average of 11h and 48min of daylight.
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

In Greenville, the average sunshine in December is 8.7h.

UV index

January through May and December, with an average maximum UV index of 7, are months with the highest UV index in Greenville. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 7 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.