September weather forecast
Juba, South Sudan

September in Juba presents a receding wet season, with a noticeable change from the previous month's intense rainfall. A decline in precipitative activity to 104mm (4.09") draws the weather away from heavy showers. Nevertheless, the warmth persists, subtly coursing through the rains and overcast skies. The daylight hours subtly reduce, reflecting the transition towards the less rainy months ahead. Concurrently, the sunshine duration increases, knowing that the dry season is merely on the horizon.

Temperature

Juba's shift from August to September is accompanied by an average high-temperature of a still tropical 33.1°C (91.6°F), a slight deviation from 31.6°C (88.9°F). With a notable disparity from daily peak temperatures, the average low-temperature settles at a pleasant 21.1°C (70°F) throughout September.

Heat index

The heat index for September is evaluated at a blazing hot 47°C (116.6°F). Vigilance: Heat cramps and heat exhaustion are likely. The likelihood of heatstroke increases with continued activity.
Note that heat index values are valued for light wind and location in the shade. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Juba, the average relative humidity in September is 77%.

Rainfall

In Juba, in September, during 8.6 rainfall days, 104mm (4.09") 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 September is 12h and 9min.
On the first day of the month, sunrise is at 05:47 and sunset at 17:59. On the last day of September, sunrise is at 05:41 and sunset at 17:45 CAT.

Sunshine

The average sunshine in September in Juba is 7.6h.

UV index

The months with the highest UV index in Juba, South Sudan, are January through May, August through November, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 12 during September translates into the following directions:
Implement all necessary safeguards, unprotected skin might suffer burns rapidly. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Use liberally and reapply a broad-spectrum SPF 30+ sunscreen every two hours, or straight away after any outdoor workout or swim.