September weather forecast
Koumantou, Mali

The first month of the autumn, September, is still a tropical month in Koumantou, Mali, with an average temperature fluctuating between 31.5°C (88.7°F) and 21.9°C (71.4°F).

Temperature

The transition from August to September sees an average high-temperature of a still hot 31.5°C (88.7°F), indicating a minor variance from the prior month. Koumantou's nights in September experience an average temperature drop to an agreeable 21.9°C (71.4°F).

Heat index

During September, the heat index is computed to be a scorching 42°C (107.6°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Records show heat index calculations are tailored for shaded regions and mild winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In September, the average relative humidity in Koumantou is 79%.

Rainfall

In Koumantou, in September, during 19.5 rainfall days, 101mm (3.98") of precipitation is typically accumulated. Throughout the year, in Koumantou, Mali, there are 114.2 rainfall days, and 591mm (23.27") of precipitation is accumulated.

Daylight

The average length of the day in September in Koumantou, Mali, is 12h and 11min.
On the first day of September in Koumantou, Mali, sunrise is at 06:17 and sunset at 18:37. On the last day of the month, sunrise is at 06:16 and sunset at 18:18 GMT.

Sunshine

The average sunshine in September in Koumantou, Mali, is 8.7h.

UV index

The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.