September weather forecast
Boulsa, Burkina Faso

September indicates a climatic shift with the weather in Boulsa slowly transitioning into the drier period. A sizable drop in rainfall to 45mm (1.77") signifies the receding of the wet season. Conditions become less humid with a drop to 65% relative humidity. Despite cloud cover dropping to 23%, Boulsa enjoys a mean of 12.2 daylight hours. Temperature averages around 33.5°C (92.3°F) which is slightly cooler compared to the scorching summer months.

Temperature

Boulsa's shift into September sets the average high-temperature at a still hot 33.5°C (92.3°F), a figure that deviates only slightly from August's 31.8°C (89.2°F). Throughout the month of September, Boulsa expects an average low of 24.2°C (75.6°F).

Heat index

In September, the average heat index is estimated at a blisteringly hot 43°C (109.4°F). Caution: Heat cramps along with heat exhaustion are expected. Sustained activity could lead to heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Boulsa, the average relative humidity in September is 65%.

Rainfall

In Boulsa, during September, the rain falls for 12.7 days and regularly aggregates up to 45mm (1.77") of precipitation. Throughout the year, there are 77.9 rainfall days, and 310mm (12.2") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 12min.
On the first day of September in Boulsa, sunrise is at 05:51 and sunset at 18:12. On the last day of the month, sunrise is at 05:51 and sunset at 17:52 GMT.

Sunshine

In Boulsa, the average sunshine in September is 11h.

UV index

The months with the highest UV index in Boulsa are March through June and September, with an average maximum UV index of 8. A UV Index of 8 to 10 symbolizes a very high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 8 turns into the following recommendations:
Take the necessary steps to protect yourself; unprotected skin and eyes are vulnerable to damage. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.