January weather forecast
Bum, Sierra Leone

January, the same as December, in Bum, Sierra Leone, is a hot winter month, with an average temperature fluctuating between 20.1°C (68.2°F) and 34.8°C (94.6°F).

Temperature

The advent of January brings an average high-temperature of a still tropical 34.8°C (94.6°F), almost identical to the preceding month. During January nights, Bum documents a marked contrast from daily highs, with an average temperature of 20.1°C (68.2°F).

Heat index

The heat index in January is appraised at a blazing hot 48°C (118.4°F). On guard: Heat exhaustion and heat cramps are predicted. Heatstroke is a potential hazard with continuous physical effort.
Always consider that heat index estimations are for light winds and places in the shade. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In January, the average relative humidity in Bum is 67%.

Rainfall

January is the month with the least rainfall. Rain falls for 4.3 days and accumulates 5mm (0.2") of precipitation.

Daylight

In January, the average length of the day is 11h and 44min.
On the first day of the month, sunrise is at 06:59 and sunset at 18:41. On the last day of January, in Bum, sunrise is at 07:06 and sunset at 18:55 GMT.

Sunshine

With an average of 9.6h of sunshine, January has the most sunshine of the year.

UV index

The months with the highest UV index in Bum are January through April, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In January, a regular UV index of 7 translates into these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.