December weather forecast
Sussex, Sierra Leone

Closing out the year, December weather in Sussex stabilizes with barely noticeable changes from November. The maximum temperature hits the 31°C (87.8°F) mark, and rainfall is at a yearly low of 7mm (0.28"). The wind speed remains relatively steady, with a minor increase to 7.6km/h (4.7mph). Sussex in December is characterized by warm temperatures, ample sunshine, and minimal rainfall, wrapping up the year on a sunny note.

Temperature

Sussex ushers in December with an average high-temperature of a still tropical 31°C (87.8°F), showing a close resemblance to the previous month. During the month of December, Sussex's nighttime temperature lowers to an average of 24.5°C (76.1°F).

Heat index

In December, the heat index is evaluated at a fiery hot 37°C (98.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In Sussex, the average relative humidity in December is 69%.

Rainfall

In December, the rain falls for 4 days. Throughout December, 7mm (0.28") of precipitation is accumulated. In Sussex, during the entire year, the rain falls for 205.9 days and collects up to 1507mm (59.33") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 36min of daylight.
On the first day of December, sunrise is at 06:51 and sunset at 18:32. On the last day of the month, sunrise is at 07:06 and sunset at 18:45 GMT.

Sunshine

The average sunshine in December in Sussex is 9.7h.

UV index

The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: During December, 7 as the daily maximum UV index converts into the following advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.