September weather forecast
Kouri, Gabon

September

Weather in September

September, the first month of the spring in Kouri, is still a warm month, with an average temperature fluctuating between 29.3°C (84.7°F) and 21.2°C (70.2°F).

Temperature

September's weather displays an average high-temperature of a warm 29.3°C (84.7°F), slightly varied from August's 30.2°C (86.4°F). During September, Kouri consistently records a temperature low averaging an agreeable 21.2°C (70.2°F).

Heat index

Throughout September, the heat index is calculated to be a torrid 35°C (95°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The average relative humidity in September is 77%.

Rainfall

In Kouri, in September, it is raining for 18.1 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, in Kouri, there are 274.1 rainfall days, and 1640mm (64.57") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 06:11 and sunset at 18:14. On the last day of September, sunrise is at 05:59 and sunset at 18:07 WAT.

Sunshine

In September, the average sunshine is 4.9h.

UV index

The months with the highest UV index are January through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 6 in September leads to these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

How hot is it in September?
September temperatures vary between a high-temperature of 29.3°C (84.7°F) and a low-temperature of 21.2°C (70.2°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 35°C (95°F).
What is the average humidity in September?
The average relative humidity in September is 77%.
How many days does it rain in September?
In Kouri, in September, it is raining for 18.1 days, with typically 44mm (1.73") of accumulated precipitation.
How many hours of daylight does Kouri have in September?
The average day length in September is 12h and 5min.
When is the sunrise / sunset in September?
On the first day of September in Kouri, sunrise is at 06:11 and sunset at 18:14. On the last day of the month, sunrise is at 05:59 and sunset at 18:07 WAT.
How long on average sun shines in September?
The average sunshine duration in September is 4.9h.
When is the highest UV index?
January through September, with an average maximum UV index of 6, are months with the highest UV index.
What is the UV index intensity in September?
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Kouri, Gabon
Average temperature in September
Kouri, Gabon
  • Average high temperature in September: 29.3°C

The warmest month (with the highest average high temperature) is March (30.6°C).
The month with the lowest average high temperature is November (28.3°C).

  • Average low temperature in September: 21.2°C

The month with the highest average low temperature is March (21.9°C).
The coldest month (with the lowest average low temperature) is July (18.6°C).

Average pressure in September - Kouri, Gabon
Average pressure in September
Kouri, Gabon
  • Average pressure in September: 1013.2mbar

The month with the highest atmospheric pressure is July (1014.4mbar).
The months with the lowest atmospheric pressure are February and March (1010.3mbar).

Average wind speed in September - Kouri, Gabon
Average wind speed in September
Kouri, Gabon
  • Average wind speed in September: 6.1km/h

The windiest month (with the highest average wind speed) is August (6.5km/h).
The calmest months (with the lowest average wind speed) are January and December (4km/h).

Average humidity in September - Kouri, Gabon
Average humidity in September
Kouri, Gabon
  • Average humidity in September: 77%

The month with the highest relative humidity is November (91%).
The month with the lowest relative humidity is August (72%).

Average rainfall in September - Kouri, Gabon
Average rainfall in September
Kouri, Gabon
  • Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is November (267mm).
The driest month (with the least rainfall) is July (4mm).

Average rainfall days in September - Kouri, Gabon
Average rainfall days in September
Kouri, Gabon
  • Average rainfall days in September: 18.1 days

The month with the highest number of rainy days is December (30.2 days).
The month with the least rainy days is July (6.3 days).

Average daylight in September / Average sunshine in September - Kouri, Gabon
Average daylight in September /
Average sunshine in September
Kouri, Gabon
  • Average daylight in September: 12h and 1min

The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).

  • Average sunshine in September: 4h and 5min

The month with the most sunshine is July (Average sunshine: 7h and 18min).
The month with the least sunshine is October (Average sunshine: 4h and 42min).

Average sunshine days in September - Kouri, Gabon
Average sunshine days in September
Kouri, Gabon
  • Average sunshine days in September: 6.9 days

The month with the most sunshine days is July (20.7 days).
The months with the least sunshine days are November and December (0.5 days).

Average UV index in September - Kouri, Gabon
Average UV index in September
Kouri, Gabon
  • Average UV index in September: 6

The months with the highest UV index are January, February, March, April, May, June, July, August and September (UV index 6).
The months with the lowest UV index are October, November and December (UV index 5).

Average cloud cover in September - Kouri, Gabon
Average cloud cover in September
Kouri, Gabon
  • Average cloud cover in September: 70

The month with the most cloud cover is October (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 50).

Average visibility in September - Kouri, Gabon
Average visibility in September
Kouri, Gabon
  • Average visibility in September: 9km

The month with the highest visibility is August (10km).
The month with the lowest visibility is November (5km).

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