January weather forecast
Bum, Sierra Leone

January

Weather in January

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.

Frequently asked questions

How hot does it get in Bum in January?
During January, Bum experiences an average high-temperature of 34.8°C (94.6°F) and a low-temperature of 20.1°C (68.2°F). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in January is appraised at 48°C (118.4°F).
What is the average humidity in January in Bum?
In Bum, Sierra Leone, the average relative humidity in January is 67%.
What is the driest month in Bum?
The month with the least rainfall in Bum, Sierra Leone, is January, when the rain falls for 4.3 days and typically collects 5mm (0.2") of precipitation.
How many days does it rain in January in Bum?
In Bum, Sierra Leone, in January, it is raining for 4.3 days, with typically 5mm (0.2") of accumulated precipitation.
How many hours of daylight does Bum have in January?
The average day length in January is 11h and 44min.
When are sunrise and sunset in January in Bum?
On the first day of January in Bum, sunrise is at 06:59 and sunset at 18:41. On the last day of the month, sunrise is at 07:06 and sunset at 18:55 GMT.
What month has the most sunshine in Bum?
With an average of 9.6h of sunshine, January has the most sunshine of the year.
How many hours of sunshine does Bum have in January?
In Bum, Sierra Leone, the average sunshine duration in January is 9.6h.
What are the months with the highest UV index in Bum?
The months with the highest UV index in Bum are January through April, November and December, with an average maximum UV index of 7.
What is the UV index intensity in January in Bum?
The average daily maximum UV index in January in Bum is 7. A UV Index estimate of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Bum, Sierra Leone
  • Average high temperature in January: 34.8°C

The warmest months (with the highest average high temperature) are February and March (36.8°C).
The month with the lowest average high temperature is August (27.5°C).

  • Average low temperature in January: 20.1°C

The month with the highest average low temperature is April (23.8°C).
The coldest month (with the lowest average low temperature) is January (20.1°C).

Average pressure in January
Bum, Sierra Leone
  • Average pressure in January: 1011.4mbar

The month with the highest atmospheric pressure is July (1014.1mbar).
The months with the lowest atmospheric pressure are February and March (1010.5mbar).

Average wind speed in January
Bum, Sierra Leone
  • Average wind speed in January: 4.5km/h

The windiest month (with the highest average wind speed) is April (5.9km/h).
The calmest month (with the lowest average wind speed) is November (3.5km/h).

Average humidity in January
Bum, Sierra Leone
  • Average humidity in January: 67%

The months with the highest relative humidity are August and September (92%).
The month with the lowest relative humidity is February (66%).

Average rainfall in January
Bum, Sierra Leone
  • Average rainfall in January: 5mm

The wettest month (with the highest rainfall) is August (341mm).
The driest month (with the least rainfall) is January (5mm).

Average rainfall days in January
Bum, Sierra Leone
  • Average rainfall days in January: 4.3 days

The month with the highest number of rainy days is August (30.5 days).
The month with the least rainy days is January (4.3 days).

Average daylight in January /
Average sunshine in January
Bum, Sierra Leone
  • Average daylight in January: 11h and 4min

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in January: 9h and 4min

The month with the most sunshine is January (Average sunshine: 9h and 36min).
The month with the least sunshine is August (Average sunshine: 3h and 6min).

Average sunshine days in January
Bum, Sierra Leone
  • Average sunshine days in January: 25.3 days

The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is September (0.2 days).

Average UV index in January
Bum, Sierra Leone
  • Average UV index in January: 7

The months with the highest UV index are January, February, March, April, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 5).

Average cloud cover in January
Bum, Sierra Leone
  • Average cloud cover in January: 23

The month with the most cloud cover is August (Cloud cover 85).
The month with the least cloud cover is January (Cloud cover 23).

Average visibility in January
Bum, Sierra Leone
  • Average visibility in January: 8km

The months with the highest visibility are February, March and April (9km).
The months with the lowest visibility are June, July, August, September, October and November (6km).

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