September weather forecastKati, Mali

Weather in September

September in Kati, Mali, signals a tapering off of the rainy season with a considerable reduction in precipitation at 82 millimeters. A lowering in temperatures to 32.5°C (90.5°F) further solicits the arrival of more amenable weather conditions. A relative drop in humidity from August to September also concurs with the drying trend. Amidst the changing weather patterns, the pressure continues to remain stable. The gradual increase in the number of sunshine days indicates the impending departure of the rainy season.

Temperature

The onset of September brings with it an average high-temperature of a still hot 32.5°C (90.5°F), showing a negligible variation from the month before. Kati, during September, witnesses an average low-temperature of 22.5°C (72.5°F).

Heat index

The heat index in September is evaluated at an extremely hot 44°C (111.2°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
Understanding the heat index involves considering values for shaded locales with light wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Kati, in September, it is raining for 14.3 days, with typically 82mm (3.23") of accumulated precipitation. Throughout the year, in Kati, there are 79.9 rainfall days, and 400mm (15.75") of precipitation is accumulated.

Daylight

In Kati, 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 Kati, sunrise is at 06:21 and sunset at 18:22 GMT.

Sunshine

In September, the average sunshine is 9h.

UV index

In September, the average daily maximum UV index in Kati is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, a daily UV index of 7 turns into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.