Ouagadougou
Burkina Faso
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Ouagadougou, Burkina Faso

A hole of water reflecting the rocks and blue sky in the sunny city of Ouagadougou, Burkina Faso
A hole of water reflecting the rocks and blue sky in the sunny city of Ouagadougou, Burkina Faso
The first month of the autumn, September, is still a tropical month in Ouagadougou, Burkina Faso, with average temperature ranging between min 21.9°C (71.4°F) and max 32°C (89.6°F).

Temperature

In September, the average high-temperature is practically the same as in August - a still hot 32°C (89.6°F). The average low-temperature, in September, is 21.9°C (71.4°F).

Heat index

The average heat index is appraised at a blistering 40.2°C (104.4°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy 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 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like metabolic differences, differences in body mass, height, and shape, 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in September is 69.5%.

Rainfall

In Ouagadougou, it is raining for 5.7 days, with typically 139mm (5.5") of accumulated precipitation. Throughout the year, there are 35.2 rainfall days, and 788mm (31") of precipitation is accumulated.

Daylight

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

Sunshine

The average sunshine in September is 7h.

UV index

February through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index of 11, and more, symbolizes an ultimate health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 12 interpret into the following advice:
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 Ouagadougou?

In September, in Ouagadougou, the average high-temperature is 32°C (89.6°F), and the average low-temperature is 21.9°C (71.4°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), that combines air temperature and relative humidity, in September is evaluated at 40.2°C (104.4°F).

What is the average humidity in September in Ouagadougou?

In Ouagadougou, the average relative humidity in September is 69.5%.

How much does it rain in Ouagadougou in September?

In Ouagadougou, Burkina Faso, in September, it is raining for 5.7 days, with typically 139mm (5.5") of accumulated precipitation.

How many hours of daylight does Ouagadougou have in September?

The average length of the day in September in Ouagadougou, Burkina Faso, is 12.2h.

How long on average sun shines in September in Ouagadougou?

In September, the average sunshine in Ouagadougou, Burkina Faso, is 7h.

What is the month with the highest UV index in Ouagadougou?

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

What is the UV index reading in September in Ouagadougou?

In Ouagadougou, the average daily maximum UV index in September is 12. A UV Index value of 11, and more, symbolizes an excessive health risk from unsafe exposure to the Sun's UV rays.
Average temperature in September - Ouagadougou, Burkina Faso
  • Average high temperature in September: 32°C

The warmest month (with the highest average high temperature) is April (39.1°C).
The month with the lowest average high temperature is August (30.9°C).

  • Average low temperature in September: 21.9°C

The month with the highest average low temperature is April (25.7°C).
The coldest month (with the lowest average low temperature) is January (16.1°C).

Average humidity in September - Ouagadougou, Burkina Faso
  • Average humidity in September: 69.5%

The month with the highest relative humidity is August (74%).
The month with the lowest relative humidity is February (28.5%).

Average rainfall in September - Ouagadougou, Burkina Faso
  • Average rainfall in September: 139mm

The wettest month (with the highest rainfall) is August (227mm).
The driest month (with the lowest rainfall) is January (0mm).

Average rainfall days in September - Ouagadougou, Burkina Faso
  • Average rainfall days in September: 5.7 days

The month with the highest number of rainy days is August (10.9 days).
Months with the lowest number of rainy days are January, November and December (0 days).

Average daylight in September / Average sunshine in September - Ouagadougou, Burkina Faso
  • Average daylight in September: 12.2h

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

  • Average sunshine in September: 7h

Months with most sunshine are January, February, March, May, October and November (Average sunshine: 9h).
The month with least sunshine is August (Average sunshine: 6h).

Average UV index in September - Ouagadougou, Burkina Faso
  • 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).