September weather forecast
Oum Hadjer, Chad

Transitioning to September, Oum Hadjer witnesses a crucial shift as the balance tips in favor of reduced rainfall down to 52mm (2.05"), marking the decline of the dominate rainy season. The atmosphere begins drying up, allowing for increased visibility and a decrease in relative humidity levels to 46%. Being the month with the least wind speed of 9.9km/h (6.2mph), September experiences an increased lethargy in terms of wind activity. The decrease in cloud cover indicates clearer skies and increased sunshine ahead.

Temperature

September's arrival signals a modest temperature shift, moving from a hot 32.2°C (90°F) in August to a torrid 35.3°C (95.5°F). Oum Hadjer, in September, observes a steady average low-temperature of 26.3°C (79.3°F).

Heat index

The heat index value for September is evaluated at a blisteringly hot 40°C (104°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The average relative humidity in September is 46%.

Rainfall

In Oum Hadjer, in September, during 11.4 rainfall days, 52mm (2.05") of precipitation is typically accumulated. Throughout the year, there are 69.3 rainfall days, and 420mm (16.54") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 12min.
On the first day of September, sunrise is at 05:29 and sunset at 17:52. On the last day of the month, sunrise is at 05:30 and sunset at 17:31 WAT.

Sunshine

In September, the average sunshine is 9.7h.

UV index

February through June, September and October, with an average maximum UV index of 8, are months with the highest UV index in Oum Hadjer. A UV Index estimate of 8 to 10 represents a very high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 8 during September leads to these advisories:
Always take precautions; unprotected eyes and skin can be damaged rapidly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.