September weather forecast
N'Djamena, Chad

Weather in September

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

Temperature

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

Heat index

The average heat index in September is calculated to be a burning hot 46.7°C (116.1°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like wind, pregnancy, clothing, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In September, the average relative humidity in N'Djamena is 72%.

Rainfall

In N'Djamena, it is raining for 9 days, with typically 84.3mm (3.32") of accumulated precipitation. Throughout the year, in N'Djamena, there are 60 rainfall days, and 510.3mm (20.09") of precipitation is accumulated.

Daylight

The average length of the day in September in N'Djamena is 12h and 11min.
On the first day of the month, sunrise is at 05:49 and sunset at 18:10. On the last day of September, in N'Djamena, Chad, sunrise is at 05:48 and sunset at 17:50 WAT.

Sunshine

In September, the average sunshine is 7.6h.

UV index

The months with the highest UV index are February through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an excessive health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
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. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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.
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FAQ

What is the temperature in September in N'Djamena?

In N'Djamena, in September, 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', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 46.7°C (116.1°F).

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

In September, the average relative humidity is 72%.

How many days does it rain in September in N'Djamena?

In N'Djamena, Chad, in September, it is raining for 9 days, with typically 84.3mm (3.32") of accumulated precipitation.

What is the average length of the day in September in N'Djamena?

In N'Djamena, the average day length in September is 12h and 11min.

When is the sunrise / sunset in September in N'Djamena?

On the first day of September in N'Djamena, sunrise is at 05:49 and sunset at 18:10. On the last day of the month, sunrise is at 05:48 and sunset at 17:50 WAT.

How long on average sun shines in September in N'Djamena?

The average sunshine duration in September is 7.6h.

What are the months with the highest UV index in N'Djamena?

February through September, with an average maximum UV index of 12, are months with the highest UV index.

What is the UV index reading in September in N'Djamena?

In September, the average daily maximum UV index is 12. A UV Index of 11, and more, symbolizes an ultimate hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average UV index

Average temperature in September
N'Djamena, Chad

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).

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Average humidity in September
N'Djamena, Chad

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%).

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Average rainfall in September
N'Djamena, Chad

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).

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Average rainfall days in September
N'Djamena, Chad

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).
The months with the least rainy days are January, February and December (0 days).

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Average daylight in September /
Average sunshine in September
N'Djamena, Chad

Average daylight in September / Average sunshine in September - N
  • Average daylight in September: 12h and 11min

The month with the longest days is June (Average daylight: 12h and 50min).
The month with the shortest days is December (Average daylight: 11h and 26min).

  • Average sunshine in September: 7h and 36min

The month with the most sunshine is November (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 6h and 30min).

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Average UV index in September
N'Djamena, Chad

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

The 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).

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