September weather forecast
Bobo-Dioulasso, Burkina Faso

In Bobo-Dioulasso, the month of September heralds a significant shift in weather conditions. With decreasing humidity levels, rainfall dramatically drops from 160mm (6.3") in August. The typically vivid September skies see less cloud cover, paving the way for the gradual return of the fabled African sun. These transformations offer a preview of the forthcoming dry season, as the city prepares to bid farewell to the rains.

Temperature

Upon the onset of September, Bobo-Dioulasso witnesses an average high-temperature of a still hot 31.7°C (89.1°F), showing a close resemblance to the prior month. An average low-temperature of 22.2°C (72°F) is anticipated throughout the nights during September.

Heat index

For September, the heat index is appraised at a blisteringly hot 42°C (107.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Bobo-Dioulasso, the average relative humidity in September is 76%.

Rainfall

In Bobo-Dioulasso, Burkina Faso, in September, during 21.3 rainfall days, 92mm (3.62") of precipitation is typically accumulated. Throughout the year, there are 125.4 rainfall days, and 574mm (22.6") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 11min.
On the first day of the month, sunrise is at 06:07 and sunset at 18:26. On the last day of September, sunrise is at 06:06 and sunset at 18:08 GMT.

Sunshine

In Bobo-Dioulasso, the average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September in Bobo-Dioulasso, Burkina Faso, is 7. 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: In September, the maximum UV index of 7 translates into these guidelines:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended.