December weather forecastBomi, Sierra Leone
December
Weather in December
December carries the ambience of the dry season in Bomi, with temperature remaining pleasant at 32.6°C (90.7°F). This period sees the least rainfall of the year, symbolizing a well-established dry season. The lowering humidity and sparse cloud cover further validate the dry season's progression. Despite the scarcity of precipitation, the long daylight duration paired with increased sunshine hours illuminates the city beautifully. The low wind speed prolongs these calming weather conditions, wrapping up the year on a serene note.Temperature
The onset of December in Bomi marks an average high-temperature of a still hot 32.6°C (90.7°F), hardly differing from November's 31.3°C (88.3°F). Marked by a significant temperature drop from daytime highs, the average nighttime temperature in Bomi lowers to an agreeable 20.1°C (68.2°F) throughout December.Heat index
In December, the heat index is appraised at an extremely hot 42°C (107.6°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
The average relative humidity in December is 70%.Rainfall
In Bomi, in December, during 8.7 rainfall days, 10mm (0.39") of precipitation is typically accumulated. In Bomi, during the entire year, the rain falls for 270.4 days and collects up to 1590mm (62.6") of precipitation.Daylight
With an average of 11h and 42min of daylight, December has the shortest days of the year in Bomi.On the first day of the month, sunrise is at 06:43 and sunset at 18:27. On the last day of December, in Bomi, Sierra Leone, sunrise is at 06:57 and sunset at 18:40 GMT.
Sunshine
In Bomi, the average sunshine in December is 9.1h.UV index
January through April and December, with an average maximum UV index of 7, are months with the highest UV index in Bomi. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 7 in December transforms into the following instructions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bomi, Sierra Leone
- Average high temperature in December: 32.6°C
The warmest month (with the highest average high temperature) is February (36.3°C).
The month with the lowest average high temperature is August (27°C).
- Average low temperature in December: 20.1°C
The month with the highest average low temperature is April (23.2°C).
The coldest month (with the lowest average low temperature) is January (19.7°C).
Average pressure in December
Bomi, Sierra Leone
- Average pressure in December: 1011.5mbar
The month with the highest atmospheric pressure is July (1014.3mbar).
The months with the lowest atmospheric pressure are February and March (1010.6mbar).
Average wind speed in December
Bomi, Sierra Leone
- Average wind speed in December: 3.8km/h
The windiest month (with the highest average wind speed) is August (5.5km/h).
The calmest month (with the lowest average wind speed) is November (3.4km/h).
Average humidity in December
Bomi, Sierra Leone
- Average humidity in December: 70%
The month with the highest relative humidity is August (93%).
The month with the lowest relative humidity is January (65%).
Average rainfall in December
Bomi, Sierra Leone
- Average rainfall in December: 10mm
The wettest month (with the highest rainfall) is August (296mm).
The driest month (with the least rainfall) is January (8mm).
Average rainfall days in December
Bomi, Sierra Leone
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is October (30.3 days).
The month with the least rainy days is January (5.8 days).
Average daylight in December /
Average sunshine in December
Bomi, Sierra Leone
- Average daylight in December: 11h and 42min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in December: 9h and 6min
The month with the most sunshine is January (Average sunshine: 9h and 36min).
The month with the least sunshine is August (Average sunshine: 2h and 54min).
Average sunshine days in December
Bomi, Sierra Leone
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is September (0.1 days).
Average UV index in December
Bomi, Sierra Leone
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April and December (UV index 7).
The months with the lowest UV index are July and August (UV index 5).
Average cloud cover in December
Bomi, Sierra Leone
- Average cloud cover in December: 29
The month with the most cloud cover is August (Cloud cover 87).
The month with the least cloud cover is January (Cloud cover 25).
Average visibility in December
Bomi, Sierra Leone
- Average visibility in December: 8km
The month with the highest visibility is March (9km).
The months with the lowest visibility are June, July, August, September and October (6km).





