September weather forecast
Biliri, Nigeria

The first month of the autumn, September, is a hot month in Biliri, Nigeria, with an average temperature fluctuating between 31.3°C (88.3°F) and 22.9°C (73.2°F).

Temperature

The advent of September brings an average high-temperature of a tropical 31.3°C (88.3°F), exhibiting minor difference from the previous month. Biliri reports an average low-temperature of 22.9°C (73.2°F) during the nights of September.

Heat index

During September, the heat index is estimated at a scorching 40°C (104°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. 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 particularly important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down 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. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In Biliri, the average relative humidity in September is 75%.

Rainfall

In Biliri, in September, it is raining for 21.5 days, with typically 87mm (3.43") of accumulated precipitation. Throughout the year, there are 113.6 rainfall days, and 500mm (19.69") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 11min.
On the first day of September, sunrise is at 06:05 and sunset at 18:24. On the last day of the month, sunrise is at 06:03 and sunset at 18:06 WAT.

Sunshine

The average sunshine in September is 8.9h.

UV index

In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.