September weather forecast
Bamako, Mali

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A park overlooking the River Niger and the city of Bamako, Mali
A park overlooking the River Niger and the city of Bamako, Mali

Weather in September

September brings a gradual end to the rainiest phase in Bamako with a reduction in rainfall to 196mm (7.72") and a slight decrease in average high temperatures to 32.2°C (90°F). The humidity levels attentive to the rainfall, start retreating but remain high at 78%. Equally enticing for locals and visitors alike are the greenery and the haggling markets, resuming business as the weather begins to make a shift towards the drier season.

Temperature

As September takes its course, Bamako's average high-temperature registers at a still tropical 32.2°C (90°F), closely aligning with the preceding month. Throughout the month of September, the average temperature in Bamako dips to an agreeable 21.6°C (70.9°F) at night.

Heat index

The average heat index in September is evaluated at a blistering 44°C (111.2°F). Careful: Heat exhaustion and heat cramps are anticipated. With ongoing exertion, heatstroke becomes a possibility.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. 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 the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In Bamako, in September, during 14.7 rainfall days, 196mm (7.72") of precipitation is typically accumulated. In Bamako, during the entire year, the rain falls for 73.7 days and collects up to 991mm (39.02") of precipitation.

Daylight

The average length of the day in September is 12h and 12min.
On the first day of the month, sunrise is at 06:21 and sunset at 18:42. On the last day of September, in Bamako, sunrise is at 06:21 and sunset at 18:22 GMT.

Sunshine

In September, the average sunshine in Bamako is 7.4h.

UV index

The months with the highest UV index in Bamako are February through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an excessive health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 12 in September leads to these recommendations:
Carry out all crucial safety measures, unprotected skin may burn instantly. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Despite the overcast weather, sunscreen with SPF of at least 30 should be applied liberally and reapplied often, particularly after swimming or an outdoor workout.
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Frequently asked questions

How hot does it get in Bamako in September?

The high-temperature, in September, in Bamako, is 32.2°C (90°F), while the low-temperature averages to 21.6°C (70.9°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in September is evaluated at 44°C (111.2°F).

What is the average humidity in September in Bamako?

The average relative humidity in September in Bamako, Mali, is 78%.

How much does it rain in Bamako in September?

In Bamako, in September, it is raining for 14.7 days, with typically 196mm (7.72") of accumulated precipitation.

How many hours of daylight does Bamako have in September?

The average day length in September in Bamako, Mali, is 12h and 12min.

When are sunrise and sunset in September in Bamako?

On the first day of September in Bamako, sunrise is at 06:21 and sunset at 18:42. On the last day of the month, sunrise is at 06:21 and sunset at 18:22 GMT.

How many hours of sunshine does Bamako have in September?

The average sunshine duration in September in Bamako, Mali, is 7.4h.

What are the months with the highest UV index in Bamako?

The months with the highest UV index in Bamako are February through September, with an average maximum UV index of 12.

What is the UV index intensity in September in Bamako?

In September, the average daily maximum UV index in Bamako is 12. A UV Index of 11, and more, symbolizes an extreme health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Bamako, Mali

Average temperature in September - Bamako, Mali
  • Average high temperature in September: 32.2°C

The warmest month (with the highest average high temperature) is April (39.6°C).
The month with the lowest average high temperature is August (31.1°C).

  • Average low temperature in September: 21.6°C

The month with the highest average low temperature is May (25.4°C).
The coldest month (with the lowest average low temperature) is December (16.8°C).

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Average humidity in September
Bamako, Mali

Average humidity in September - Bamako, Mali
  • Average humidity in September: 78%

The month with the highest relative humidity is August (81%).
The month with the lowest relative humidity is February (20%).

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Average rainfall in September
Bamako, Mali

Average rainfall in September - Bamako, Mali
  • Average rainfall in September: 195.9mm

The wettest month (with the highest rainfall) is August (290.2mm).
The driest month (with the least rainfall) is December (0.5mm).

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Average rainfall days in September
Bamako, Mali

Average rainfall days in September - Bamako, Mali
  • Average rainfall days in September: 14.7 days

The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is December (0.1 days).

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Average daylight in September /
Average sunshine in September
Bamako, Mali

Average daylight in September / Average sunshine in September - Bamako, Mali
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).

  • Average sunshine in September: 7h and 2min

The months with the most sunshine are February and November (Average sunshine: 9h and 0min).
The months with the least sunshine are July and August (Average sunshine: 7h and 0min).

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Average UV index in September
Bamako, Mali

Average UV index in September - Bamako, Mali
  • Average UV index in September: 12

The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

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Bamako, Mali

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