April weather forecast
Bula Atumba, Angola

April, like March, in Bula Atumba, Angola, is a moderately hot autumn month, with an average temperature varying between 20.1°C (68.2°F) and 29.3°C (84.7°F).

Temperature

The commencement of April brings an average high-temperature of a still moderately hot 29.3°C (84.7°F), marking an inconsequential divergence from March. The temperature lowers to an average of 20.1°C (68.2°F) during April nights.

Heat index

April's heat index is estimated at a sweltering 37°C (98.6°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Consider that heat index readings are for situations in the shade and light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

April and December, with an average relative humidity of 86%, are the most humid months in Bula Atumba.

Rainfall

The month with the most rainfall is April, when the rain falls for 26.9 days and typically aggregates up to 219mm (8.62") of precipitation.

Daylight

The average length of the day in April is 11h and 55min.
On the first day of the month, sunrise is at 06:04 and sunset at 18:05. On the last day of April, sunrise is at 06:03 and sunset at 17:52 WAT.

Sunshine

April has the least sunshine of the year, with an average of 6.7h of sunshine.

UV index

The months with the highest UV index in Bula Atumba, Angola, are January through December, with an average maximum UV index of 6. The months with the lowest UV index in Bula Atumba are January through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during April, leads to the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.