September weather forecast
Yirol, South Sudan

September signifies transitional weather patterns, revealing Yirol's retreat from the rainy season. A notable spec in the weather pattern emerges with rainfall dipping slightly to 93mm (3.66"), while relative humidity drops to 77%. This switch reflects declining monsoonal influence and gradually reducing rainfall. The clouds start to disperse with an increase in sunshine hours. The constant warm temperatures, defined by the location's tropical weather, persist during this transition.

Temperature

As Yirol transitions into September, the average high-temperature stands at a still hot 31.7°C (89.1°F), offering little variation from the preceding month. Yirol's September nights cool down to an average low-temperature of 21.3°C (70.3°F).

Heat index

In September, the heat index is estimated at a blisteringly hot 42°C (107.6°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
The heat index's values are generally associated with conditions in shade and light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Yirol, during September, the rain falls for 22.3 days and regularly aggregates up to 93mm (3.66") of precipitation. Throughout the year, there are 171.8 rainfall days, and 676mm (26.61") of precipitation is accumulated.

Daylight

In Yirol, the average length of the day in September is 12h and 10min.
On the first day of September in Yirol, sunrise is at 05:50 and sunset at 18:05. On the last day of the month, sunrise is at 05:45 and sunset at 17:49 CAT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.