September weather forecast
Umuoji, Nigeria

The first month of the autumn, September, is still a warm month in Umuoji, Nigeria, with an average temperature ranging between min 22.5°C (72.5°F) and max 29.2°C (84.6°F).

Temperature

Umuoji records a slight change with September's average high-temperatures adjusting to a still moderately hot 29.2°C (84.6°F) from August's 28.5°C (83.3°F). Umuoji experiences an average low-temperature of 22.5°C (72.5°F) in month of September.

Heat index

In September, the heat index is evaluated at a sweltering 38°C (100.4°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

July and September, with an average relative humidity of 89%, are the most humid months.

Rainfall

In Umuoji, in September, during 27.2 rainfall days, 167mm (6.57") of precipitation is typically accumulated. In Umuoji, during the entire year, the rain falls for 230.2 days and collects up to 1030mm (40.55") of precipitation.

Daylight

In September, the average length of the day is 12h and 9min.
On the first day of September in Umuoji, Nigeria, sunrise is at 06:25 and sunset at 18:39. On the last day of the month, sunrise is at 06:20 and sunset at 18:24 WAT.

Sunshine

In September, the average sunshine in Umuoji, Nigeria, is 5.5h.

UV index

June through September, with an average maximum UV index of 6, are months with the lowest UV index in Umuoji. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.