September weather forecast
San, Mali

September signals a shift in weather patterns in San, Mali. Rainfall sharply decreases from 122mm (4.8") to 37mm (1.46"), indicative of the impending end of the rainy season. Temperature ranges slowly start to broaden again, suggesting a return to hotter conditions. Overcast skies begin to make way for clearer days, as cloud coverage drops back down. Despite the continuation of humidity, the winds provide a sense of freshness in the atmosphere.

Temperature

The transition from August to September sees an average high-temperature of a sweltering 35°C (95°F), indicating a minor variance from the prior month. The nights of September anticipate an average low-temperature of 24.9°C (76.8°F).

Heat index

During September, the heat index is evaluated at a burning hot 45°C (113°F). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In San, Mali, the average relative humidity in September is 59%.

Rainfall

In San, in September, it is raining for 10.2 days, with typically 37mm (1.46") of accumulated precipitation. In San, during the entire year, the rain falls for 66.1 days and collects up to 257mm (10.12") of precipitation.

Daylight

In September, the average length of the day in San is 12h and 12min.
On the first day of September, sunrise is at 06:08 and sunset at 18:30. On the last day of the month, sunrise is at 06:08 and sunset at 18:09 GMT.

Sunshine

In San, the average sunshine in September is 9.6h.

UV index

The average daily maximum UV index in September in San is 8. A UV Index reading of 8 to 10 represents a very high health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 8 in September interprets into the following recommendations:
Always take precautions; unprotected eyes and skin can be damaged rapidly. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.