September weather forecast
Mali, Guinea

September marks a turn in climatic trend as it experiences a reduction in rainfall to 139mm (5.47"). Maximum temperatures exhibit an upward trend, reaching 31.9°C (89.4°F) but the nights remain relatively cooler at 22.5°C (72.5°F). Humidity gradually decreases from its peak in August but remains high at 82%. Despite the reduced rainfall, the average number of rainy days remains high. Hindus in Guinea, Mali may want to keep their umbrellas close at hand.

Temperature

The shift into September records an average high-temperature of a still hot 31.9°C (89.4°F), subtly varied from August's 31.2°C (88.2°F). The average temperature drops to an agreeable 22.5°C (72.5°F) during the night in the month of September.

Heat index

For most parts of September, the heat index is calculated to be a life-threatening hot 45°C (113°F). Guard: Heat exhaustion and heat cramps are foreseeable. Prolonged effort may bring about heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. 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. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Mali, the average relative humidity in September is 82%.

Rainfall

In September, in Mali, Guinea, the rain falls for 24.5 days. Throughout September, 139mm (5.47") of precipitation is accumulated. In Mali, during the entire year, the rain falls for 115.7 days and collects up to 635mm (25") of precipitation.

Daylight

The average length of the day in September in Mali is 12h and 11min.
On the first day of September, sunrise is at 06:38 and sunset at 18:59. On the last day of the month, sunrise is at 06:38 and sunset at 18:39 GMT.

Sunshine

In Mali, the average sunshine in September is 8.6h.

UV index

In Mali, Guinea, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 7 during September leads to these advisories:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.