September weather forecast
Leo, Burkina Faso

In September, Leo begins bidding farewell to the rainy season, with the weather increasingly leaning towards drier conditions. The shift becomes evident as rainfall levels directory, and the relative humidity begins falling. The prolonged daylight hours begin to shorten, leaving room for longer evenings and early mornings. The temperature regains its upward momentum, setting a pace for the hotter months to come. The smooth transition from the wet to dry season neatly packages the climatic variations Leo experiences throughout the year.

Temperature

The arrival of September in Leo denotes a barely perceptible change in the average high-temperatures to a still tropical 32.4°C (90.3°F) from August's 30.8°C (87.4°F). An average nighttime temperature of 23.2°C (73.8°F) is noted in Leo during the month of September.

Heat index

September's mean heat index is estimated at a blisteringly hot 43°C (109.4°F). Take note: Heat exhaustion and heat cramps are expected. Heatstroke can occur with prolonged effort.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. 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 primarily vital for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Leo, during September, the rain falls for 17.7 days and regularly aggregates up to 60mm (2.36") of precipitation. Throughout the year, there are 108.6 rainfall days, and 382mm (15.04") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September, sunrise is at 05:58 and sunset at 18:18. On the last day of the month, sunrise is at 05:57 and sunset at 17:59 GMT.

Sunshine

In Leo, the average sunshine in September is 10h.

UV index

The months with the lowest UV index are January, June through October and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: During September, 7 as the daily maximum UV index converts into the following advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. 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. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.