September weather forecastLéré, Mali
September
Weather in September
The first month of the autumn, September, is still a torrid month in Léré, Mali, with an average temperature fluctuating between 27.6°C (81.7°F) and 37.2°C (99°F).Temperature
The average high-temperature is a still fiery hot 37.2°C (99°F) in September, hardly different from the 35.3°C (95.5°F) recorded in August. In Léré, in September, the average low-temperature is a moderately hot 27.6°C (81.7°F).Heat index
The heat index for September is computed to be a scorching 44°C (111.2°F). Caution: Heat cramps along with heat exhaustion are expected. Sustained activity could lead to heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. 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 primarily vital for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In September, the average relative humidity in Léré, Mali, is 45%.Rainfall
In Léré, Mali, in September, it is raining for 8.5 days, with typically 32mm (1.26") of accumulated precipitation. In Léré, Mali, during the entire year, the rain falls for 48.5 days and collects up to 234mm (9.21") of precipitation.Snowfall
September is the only month when snow falls. The month with the most snowfall is September, when snow falls for 0.1 days and typically aggregates up to 1mm (0.04") of snow.Daylight
The average length of the day in September is 12h and 13min.On the first day of September in Léré, sunrise is at 06:06 and sunset at 18:32. On the last day of the month, sunrise is at 06:09 and sunset at 18:09 GMT.
Sunshine
In September, the average sunshine in Léré is 9.6h.UV index
In Léré, the average daily maximum UV index in September is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 8 in September leads to these guidelines:
Be vigilant. Without due care, eyes and skin can be harmed in no time. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Léré, Mali
- Average high temperature in September: 37.2°C
The warmest month (with the highest average high temperature) is May (41.5°C).
The month with the lowest average high temperature is January (32.7°C).
- Average low temperature in September: 27.6°C
The month with the highest average low temperature is June (31.3°C).
The coldest month (with the lowest average low temperature) is January (18.8°C).
Average pressure in September
Léré, Mali
- Average pressure in September: 1010.3mbar
The month with the highest atmospheric pressure is January (1013.5mbar).
The months with the lowest atmospheric pressure are April and May (1007.6mbar).
Average wind speed in September
Léré, Mali
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is February (16.7km/h).
The calmest month (with the lowest average wind speed) is October (11.1km/h).
Average humidity in September
Léré, Mali
- Average humidity in September: 45%
The month with the highest relative humidity is August (53%).
The month with the lowest relative humidity is March (11%).
Average rainfall in September
Léré, Mali
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is August (119mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).
Average rainfall days in September
Léré, Mali
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is August (14.3 days).
The month with the least rainy days is December (0.1 days).
Average snowfall in September
Léré, Mali
- Average snowfall in September: 1mm
The month with the highest snowfall is September (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).
Average snowfall days in September
Léré, Mali
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Léré, 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 12min).
- Average sunshine in September: 9h and 36min
The months with the most sunshine are May and June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 30min).
Average sunshine days in September
Léré, Mali
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is December (30.9 days).
The month with the least sunshine days is August (15.3 days).
Average UV index in September
Léré, 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
Léré, Mali
- Average cloud cover in September: 20
The month with the most cloud cover is August (Cloud cover 29).
The months with the least cloud cover are March and November (Cloud cover 7).
Average visibility in September
Léré, 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).
