September weather forecastSianhala, Mali

September

Weather in September

The first month of the autumn, September, is a tropical month in Sianhala, Mali, with an average temperature fluctuating between 21.6°C (70.9°F) and 31.4°C (88.5°F).

Temperature

September registers an average high-temperature of a tropical 31.4°C (88.5°F), slightly varied from August's 29.7°C (85.5°F). Throughout the September nights, Sianhala encounters a low-temperature of 21.6°C (70.9°F).

Heat index

For most parts of September, the heat index is evaluated at a scorching 41°C (105.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
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 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The average relative humidity in September is 78%.

Rainfall

In September, the rain falls for 22.4 days. Throughout September, 93mm (3.66") of precipitation is accumulated. In Sianhala, during the entire year, the rain falls for 132.5 days and collects up to 578mm (22.76") of precipitation.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of the month, sunrise is at 06:16 and sunset at 18:35. On the last day of September, sunrise is at 06:14 and sunset at 18:16 GMT.

Sunshine

In Sianhala, the average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, an average UV index of 7 transforms into the following instructions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

During September, Sianhala experiences an average high-temperature of 31.4°C (88.5°F) and a low-temperature of 21.6°C (70.9°F). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is evaluated at 41°C (105.8°F).

In Sianhala, the average relative humidity in September is 78%.

In Sianhala, in September, it is raining for 22.4 days, with typically 93mm (3.66") of accumulated precipitation.

In September, the average day length is 12h and 11min.

In September, on the first day of the month, sunrise is at 06:16 and sunset at 18:35. On the last day of the month, sunrise is at 06:14 and sunset at 18:16 GMT.

In September, the average sunshine duration is 8.8h.

In Sianhala, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Sianhala, Mali

  • Average high temperature in September: 31.4°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 (29.7°C).

  • Average low temperature in September: 21.6°C

The month with the highest average low temperature is April (26.5°C).
The coldest month (with the lowest average low temperature) is January (19°C).

Average pressure in September
Sianhala, Mali

  • Average pressure in September: 1012.1mbar

The month with the highest atmospheric pressure is August (1012.2mbar).
The month with the lowest atmospheric pressure is April (1008.2mbar).

Average wind speed in September
Sianhala, Mali

  • Average wind speed in September: 6.4km/h

The windiest month (with the highest average wind speed) is January (9.9km/h).
The calmest month (with the lowest average wind speed) is September (6.4km/h).

Average humidity in September
Sianhala, Mali

  • Average humidity in September: 78%

The month with the highest relative humidity is August (83%).
The month with the lowest relative humidity is January (15%).

Average rainfall in September
Sianhala, Mali

  • Average rainfall in September: 93mm

The wettest month (with the highest rainfall) is August (187mm).
The driest month (with the least rainfall) is December (0mm).

Average rainfall days in September
Sianhala, Mali

  • Average rainfall days in September: 22.4 days

The month with the highest number of rainy days is August (26.7 days).
The month with the least rainy days is December (0.1 days).

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

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).

  • Average sunshine in September: 8h and 48min

The month with the most sunshine is May (Average sunshine: 10h and 48min).
The month with the least sunshine is August (Average sunshine: 7h and 30min).

Average sunshine days in September
Sianhala, Mali

  • Average sunshine days in September: 5.8 days

The month with the most sunshine days is December (30.6 days).
The month with the least sunshine days is August (3.6 days).

Average UV index in September
Sianhala, Mali

  • Average UV index in September: 7

The months with the highest UV index are February, March, April and May (UV index 8).
The months with the lowest UV index are July, August and December (UV index 6).

Average cloud cover in September
Sianhala, Mali

  • Average cloud cover in September: 34

The month with the most cloud cover is August (Cloud cover 48).
The month with the least cloud cover is December (Cloud cover 6).

Average visibility in September
Sianhala, Mali

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The month with the lowest visibility is August (8km).