, the first month of the autumn, in Juba
, is still a hot month, with average temperature ranging between min 21.1°C (70°F) and max 33.1°C (91.6°F).
In September, the average high-temperature is essentially the same as in August
- a still tropical 33.1°C (91.6°F). In September, in Juba, the average low-temperature is 21.1°C (70°F).
In September, the average heat index is evaluated at a life-threatening hot 47°C (116.6°F). Be wary
: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.Note
: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like differences in body mass, height, and shape, metabolic differences, wind, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
In September, the average relative humidity in Juba is 77%.
In September, in Juba, South Sudan
, the rain falls for 8.6 days. Throughout September, 103.7mm (4.08") of precipitation is accumulated. Throughout the year, in Juba, there are 96.2 rainfall days, and 953.7mm (37.55") of precipitation is accumulated.
In Juba, South Sudan, the average length of the day is 12.1h.
The average sunshine in Juba is 7.6h.
, August through November
, with an average maximum UV index of 12, are months with the highest UV index in Juba. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.Note
: The daily maximum UV index of 12 interpret into the following advice:
Practice all essential precautions. Protection against sun damage is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.