September weather forecast and climate
N'Djamena, Chad

The first month of the autumn, September, is still a hot month in N'Djamena, Chad, with average temperature fluctuating between 33.7°C (92.7°F) and 22.7°C (72.9°F).

Temperature

In N'Djamena, Chad, the average high-temperature is essentially the same as in August - a still hot 33.7°C (92.7°F). In September, the average low-temperature is 22.7°C (72.9°F).

Heat index

In September, the average heat index is evaluated at a life-threatening hot 46.7°C (116.1°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. With the 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 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, clothing, pregnancy, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception 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 72%.

Rainfall

In N'Djamena, in September, it is raining for 9 days, with typically 84.3mm (3.32") of accumulated precipitation. In N'Djamena, during the entire year, the rain falls for 60 days and collects up to 510.3mm (20.09") of precipitation.

Daylight

The average length of the day in September is 12.2h.

Sunshine

In N'Djamena, the average sunshine is 7.6h.

UV index

February through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an extreme threat to health from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 12 in September transform into the following instructions:
Take all required precautions, as unprotected skin and eyes can burn in minutes. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.

What is the temperature in September in N'Djamena?

In September, in N'Djamena, Chad, the average high-temperature is 33.7°C (92.7°F), and the average low-temperature is 22.7°C (72.9°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that represents influence of the relative humidity to air temperaure, in September is estimated at 46.7°C (116.1°F).

What is the average humidity in September in N'Djamena?

The average relative humidity in September is 72%.

How much does it rain in N'Djamena in September?

In N'Djamena, during September, the rain falls for 9 days and regularly aggregates up to 84.3mm (3.32") of precipitation.

How many hours of daylight does N'Djamena have in September?

In N'Djamena, Chad, the average length of the day in September is 12.2h.

How many hours of sunshine does N'Djamena have in September?

The average sunshine in September is 7.6h.

What is the month with the highest UV index in N'Djamena?

Months with the highest UV index in N'Djamena are February through September, with an average maximum UV index of 12.

How high is the UV index in September in N'Djamena?

The average daily maximum UV index in September in N'Djamena is 12. A UV Index estimate of 11, and higher, represents an extreme health threat from unprotected exposure to the UV radiation.
Average temperature in September - N
  • Average high temperature in September: 33.7°C

The warmest month (with the highest average high temperature) is April (41°C).
The month with the lowest average high temperature is August (31.6°C).

  • Average low temperature in September: 22.7°C

The month with the highest average low temperature is May (25.8°C).
The coldest month (with the lowest average low temperature) is January (14.3°C).

Average humidity in September - N
  • Average humidity in September: 72%

The month with the highest relative humidity is August (76%).
The month with the lowest relative humidity is March (21%).

Average rainfall in September - N
  • Average rainfall in September: 84.3mm

The wettest month (with the highest rainfall) is August (174.4mm).
The driest months (with the least rainfall) are January, February and December (0mm).

Average rainfall days in September - N
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is August (15 days).
Months with the least rainy days are January, February and December (0 days).

Average daylight in September / Average sunshine in September - N
  • Average daylight in September: 12.2h

Months with the longest days are June and July (Average daylight: 12.8h).
The month with the shortest days is December (Average daylight: 11.4h).

  • Average sunshine in September: 7.6h

The month with the most sunshine is November (Average sunshine: 10h).
The month with the least sunshine is August (Average sunshine: 6.5h).

Average UV index in September - N
  • Average UV index in September: 12

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).