April ushers in the wet season in
Juba, characterized by high humidity, due to a substantial increase in rainfall. The remarkable month-on-month change in precipitation is persuasive, with the average rainfall now at a high of 112mm (4.41"). Following this weather-wise, the temperature trends downward, although still firmly within the hot range. The largely cloud-covered sky does little to slacken the pace of the sunshine hours. Awaiting is a weather pattern promising even heavier rainfall in the coming months.
Temperature
The transition into April is marked with an average high-temperature of a still torrid 35.4°C (95.7°F), showing an insignificant shift from
March's 37.7°C (99.9°F). Juba's nights during April are marked by a pronounced drop from daytime temperatures, experiencing an average low of 23.4°C (74.1°F).
Heat index
The heat index in April is evaluated at a life-threatening hot 48°C (118.4°F).
Careful: Heat exhaustion and heat cramps are anticipated. With ongoing exertion, heatstroke becomes a possibility.
Understanding the heat index involves considering values for shaded locales with light wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
In Juba, the average relative humidity in April is 64%.
Rainfall
In Juba, in April, during 11.6 rainfall days, 112mm (4.41") of precipitation is typically accumulated. In Juba, during the entire year, the rain falls for 96.2 days and collects up to 954mm (37.56") of precipitation.
Daylight
The average length of the day in April in Juba is 12h and 14min.
On the first day of April, sunrise is at 05:52 and sunset at 18:02. On the last day of the month, sunrise is at 05:42 and sunset at 17:59 CAT.
Sunshine
In April, the average sunshine in Juba is 6.6h.
UV index
January through
May,
August through
November, with an average maximum UV index of 12, are months with the highest UV index in Juba. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 12 in April translates into the following instructions:
Put into action all important safeguards, unprotected skin may burn swiftly. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Apply and frequently reapply a broad-spectrum SPF 30+ sunscreen after every two hours, or immediately after a swim or outdoor exercise.