September weather forecast
Yambio, South Sudan

September marks the decline of the rainy season in Yambio as precipitation decreases to 133mm (5.24"). This reduction is accompanied by a gradual easing of humidity and a reduced cloud cover percentage. Temperatures tend to hold steady, staying comfortably between 19.3°C (66.7°F) and 28.8°C (83.8°F). As the weather transitions, the daylight remains plentiful, appearing for about 12.1h daily.

Temperature

Yambio's transition from August to September introduces an average high-temperature of a still moderately hot 28.8°C (83.8°F), marking an insignificant variation from the 28.4°C (83.1°F). In Yambio, September nights cool down to an average of 19.3°C (66.7°F).

Heat index

During September, the heat index is appraised at a very hot 35°C (95°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Yambio, the average relative humidity in September is 85%.

Rainfall

In Yambio, in September, it is raining for 27.5 days, with typically 133mm (5.24") of accumulated precipitation. In Yambio, during the entire year, the rain falls for 228.1 days and collects up to 1162mm (45.75") of precipitation.

Daylight

The average length of the day in September in Yambio, South Sudan, is 12h and 8min.
On the first day of September, sunrise is at 06:00 and sunset at 18:12. On the last day of the month, sunrise is at 05:53 and sunset at 17:58 CAT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

The months with the lowest UV index in Yambio are June, July and September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In September, a regular UV index of 5 translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.