September weather forecast
Iriba, Chad

As September rolls in, Iriba begins to witness a decline in rainfall, signaling the end of the heavy rains. Apart from the lessened precipitation, the city experiences a receding cloud cover percentage, paving the way for more radiant days. A less visible drop in wind speed to 10.2km/h (6.3mph) points to relatively calmer days. As temperatures continue to decrease, the city presents comfortable conditions for inhabitants and visitors alike. It is worth noting that the UV index stays steady at 7, making sun protection measures advised.

Temperature

The beginning of September reveals an average high-temperature of a still hot 33.3°C (91.9°F), showing minimal deviation from the previous month. Throughout the month of September, Iriba witnesses an average low-temperature of 24.1°C (75.4°F).

Heat index

The heat index value during September is estimated at a fiery hot 37°C (98.6°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in September is 51%.

Rainfall

In Iriba, Chad, in September, it is raining for 11.2 days, with typically 54mm (2.13") of accumulated precipitation. Throughout the year, in Iriba, there are 64.7 rainfall days, and 392mm (15.43") of precipitation is accumulated.

Daylight

In Iriba, the average length of the day in September is 12h and 13min.
On the first day of September, sunrise is at 05:18 and sunset at 17:43. On the last day of the month, sunrise is at 05:20 and sunset at 17:21 WAT.

Sunshine

The average sunshine in September is 9.6h.

UV index

In September, the average daily maximum UV index in Iriba is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.