September weather forecast
Ati, Chad

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Weather in September

A significant decrease in rainfall marks the month of September in Ati, Chad, dropping down to 35mm (1.38"). This reduction in precipitation signifies the gradual retreat of the wet season. Aside from the departure of the rains, the weather continues to cool off progressively. Comparing the weather trends, September consolidates the transition to the dry season while maintaining a warm atmosphere, favoring various activities.

Temperature

September's advent denotes a minor fluctuation in the average high-temperature to a torrid 36.6°C (97.9°F) from August's 33.7°C (92.7°F). Ati's nights in September experience an average temperature drop to a warm 27.5°C (81.5°F).

Heat index

The average heat index in September is appraised at a scorching 44°C (111.2°F). Attention: Heat exhaustion and heat cramps are anticipated. Prolonged effort can result in heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The average relative humidity in September is 48%.

Rainfall

In Ati, during September, the rain falls for 10.4 days and regularly aggregates up to 35mm (1.38") of precipitation. In Ati, during the entire year, the rain falls for 68.4 days and collects up to 287mm (11.3") of precipitation.

Daylight

The average length of the day in September is 12h and 12min.
On the first day of September, sunrise is at 05:35 and sunset at 17:57. On the last day of the month, sunrise is at 05:35 and sunset at 17:37 WAT.

Sunshine

In Ati, the average sunshine in September is 9.6h.

UV index

In September, the average daily maximum UV index is 8. A UV Index reading of 8 to 10 represents a very high health risk from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 8 in September translates into the following instructions:
Always stay safe. Unprotected skin and eyes can get damaged rapidly. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

How hot is it in September?

In Ati, in September, the average high-temperature is 36.6°C (97.9°F), and the average low-temperature is 27.5°C (81.5°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is appraised at 44°C (111.2°F).

What is the average humidity in September?

In Ati, the average relative humidity in September is 48%.

How many days does it rain in September?

In Ati, during September, the rain falls for 10.4 days and regularly aggregates up to 35mm (1.38") of precipitation.

How many hours of daylight does Ati have in September?

In September, the average day length is 12h and 12min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 05:35 and sunset at 17:57. On the last day of the month, sunrise is at 05:35 and sunset at 17:37 WAT.

How long on average sun shines in September?

The average sunshine duration in September is 9.6h.

How high is the UV index in September?

The average daily maximum UV index in September is 8. A UV Index estimate of 8 to 10 represents a very high health threat from exposure to Sun's UV rays.

Average temperature in September
Ati, Chad

Average temperature in September - Ati, Chad
  • Average high temperature in September: 36.6°C

The warmest month (with the highest average high temperature) is April (42.6°C).
The month with the lowest average high temperature is August (33.7°C).

  • Average low temperature in September: 27.5°C

The month with the highest average low temperature is June (30.9°C).
The coldest month (with the lowest average low temperature) is January (17.9°C).

Average pressure in September
Ati, Chad

Average pressure in September - Ati, Chad
  • Average pressure in September: 1009.2mbar

The month with the highest atmospheric pressure is January (1012.1mbar).
The month with the lowest atmospheric pressure is April (1006mbar).

Average wind speed in September
Ati, Chad

Average wind speed in September - Ati, Chad
  • Average wind speed in September: 11.6km/h

The windiest month (with the highest average wind speed) is February (16.3km/h).
The calmest month (with the lowest average wind speed) is October (11.4km/h).

Average humidity in September
Ati, Chad

Average humidity in September - Ati, Chad
  • Average humidity in September: 48%

The month with the highest relative humidity is August (62%).
The month with the lowest relative humidity is March (10%).

Average rainfall in September
Ati, Chad

Average rainfall in September - Ati, Chad
  • Average rainfall in September: 35mm

The wettest month (with the highest rainfall) is August (142mm).
The driest months (with the least rainfall) are January, February, March, November and December (0mm).

Average rainfall days in September
Ati, Chad

Average rainfall days in September - Ati, Chad
  • Average rainfall days in September: 10.4 days

The month with the highest number of rainy days is August (23 days).
The months with the least rainy days are January, February, November and December (0 days).

Average daylight in September /
Average sunshine in September
Ati, Chad

Average daylight in September / Average sunshine in September - Ati, Chad
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is May (Average sunshine: 12h and 6min).
The months with the least sunshine are January and February (Average sunshine: 7h and 42min).

Average sunshine days in September
Ati, Chad

Average sunshine days in September - Ati, Chad
  • Average sunshine days in September: 16.4 days

The months with the most sunshine days are January and December (31 days).
The month with the least sunshine days is August (6.3 days).

Average UV index in September
Ati, Chad

Average UV index in September - Ati, Chad
  • Average UV index in September: 8

The months with the highest UV index are April and May (UV index 9).
The months with the lowest UV index are January, August, November and December (UV index 7).

Average cloud cover in September
Ati, Chad

Average cloud cover in September - Ati, Chad
  • Average cloud cover in September: 20

The month with the most cloud cover is August (Cloud cover 36).
The months with the least cloud cover are January and December (Cloud cover 1).

Average visibility in September
Ati, Chad

Average visibility in September - Ati, Chad
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (10km).
The month with the lowest visibility is August (9km).

Ati, Chad

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