April weather forecast
Bum, Sierra Leone

April, like March, in Bum, Sierra Leone, is another sweltering spring month, with an average temperature varying between 23.8°C (74.8°F) and 35.8°C (96.4°F).

Temperature

Bum notes an average high-temperature of a still torrid 35.8°C (96.4°F) in April, hardly diverging from March. Throughout April nights, Bum experiences a consistent temperature average of 23.8°C (74.8°F).

Heat index

During April, the heat index is appraised at a life-threatening hot 54°C (129.2°F). Remain alert: Heat exhaustion and heat cramps are predicted. Extended effort can lead to heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

The average relative humidity in April is 71%.

Rainfall

In April, the rain falls for 20.3 days. Throughout April, 79mm (3.11") of precipitation is accumulated. In Bum, during the entire year, the rain falls for 256.6 days and collects up to 1628mm (64.09") of precipitation.

Daylight

The average length of the day in April in Bum, Sierra Leone, is 12h and 17min.
On the first day of April, sunrise is at 06:45 and sunset at 18:57. On the last day of the month, sunrise is at 06:33 and sunset at 18:56 GMT.

Sunshine

In April, the average sunshine in Bum is 8.2h.

UV index

January through April, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In April, the maximum UV index of 7 suggests these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.