September weather forecastKoussane, Mali
September
Weather in September
The first month of the autumn, September, is still a tropical month in Koussane, Mali, with an average temperature ranging between max 34.6°C (94.3°F) and min 25.4°C (77.7°F).Temperature
September brings an average high-temperature of a still tropical 34.6°C (94.3°F), showing a slight difference from August's 33.7°C (92.7°F). Koussane witnesses a consistent average low-temperature of 25.4°C (77.7°F) throughout September.Heat index
September's average heat index is computed to be a burning hot 47°C (116.6°F). Forewarned: Heat cramps and heat exhaustion are anticipated. Ongoing physical activity increases the likelihood of heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
In September, the average relative humidity in Koussane, Mali, is 67%.Rainfall
In Koussane, in September, it is raining for 14.7 days, with typically 66mm (2.6") of accumulated precipitation. In Koussane, during the entire year, the rain falls for 64.9 days and collects up to 273mm (10.75") of precipitation.Daylight
The average length of the day in September in Koussane is 12h and 13min.On the first day of the month, sunrise is at 06:32 and sunset at 18:56. On the last day of September, sunrise is at 06:34 and sunset at 18:34 GMT.
Sunshine
In Koussane, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 8 turns into the following recommendations:
Immediate care is essential; skin and eyes can be harmed in no time without it. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Koussane, Mali
- Average high temperature in September: 34.6°C
The warmest month (with the highest average high temperature) is May (42.3°C).
The month with the lowest average high temperature is August (33.7°C).
- Average low temperature in September: 25.4°C
The month with the highest average low temperature is June (30°C).
The coldest month (with the lowest average low temperature) is January (17.9°C).
Average pressure in September
Koussane, Mali
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is January (1013mbar).
The month with the lowest atmospheric pressure is April (1008.2mbar).
Average wind speed in September
Koussane, Mali
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is July (12.1km/h).
The calmest month (with the lowest average wind speed) is October (7.7km/h).
Average humidity in September
Koussane, Mali
- Average humidity in September: 67%
The month with the highest relative humidity is August (70%).
The months with the lowest relative humidity are February and March (14%).
Average rainfall in September
Koussane, Mali
- Average rainfall in September: 66mm
The wettest month (with the highest rainfall) is August (109mm).
The driest months (with the least rainfall) are January, February and December (0mm).
Average rainfall days in September
Koussane, Mali
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is February (0 days).
Average daylight in September /
Average sunshine in September
Koussane, Mali
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are March and April (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 8h and 18min).
Average sunshine days in September
Koussane, Mali
- Average sunshine days in September: 13 days
The months with the most sunshine days are January and December (30.8 days).
The month with the least sunshine days is August (10.6 days).
Average UV index in September
Koussane, Mali
- Average UV index in September: 8
The months with the highest UV index are April and May (UV index 9).
The month with the lowest UV index is December (UV index 6).
Average cloud cover in September
Koussane, Mali
- Average cloud cover in September: 25
The month with the most cloud cover is August (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 6).
Average visibility in September
Koussane, Mali
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
