September weather forecast
Bandundu, Democratic Republic of Congo

As summer starts winding down, September brings the first signs of relief with minor reductions in temperature, high being 33.4°C (92.1°F). The rainfall quantity also picks up slightly to 64mm (2.52"), signaling the onset of a sub-seasonal shift. However, despite these changes, the sunshine duration remains steady, allowing for pleasant outdoor activities. September comes as a transition month, making it a perfect time for gentle adaption to the upcoming climatic alterations.

Temperature

September's onset in Bandundu sees an average high-temperature of a hot 33.4°C (92.1°F), exhibiting a slight fluctuation from the previous month. September brings an average low-temperature of 24°C (75.2°F) to Bandundu.

Heat index

The heat index for September is computed to be a scorching 43°C (109.4°F). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.
One should consider that heat index numbers are for shaded settings and light 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 'felt air temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in September is 65%.

Rainfall

In Bandundu, in September, it is raining for 19.6 days, with typically 64mm (2.52") of accumulated precipitation. Throughout the year, there are 230.8 rainfall days, and 972mm (38.27") of precipitation is accumulated.

Daylight

In Bandundu, the average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 05:48 and sunset at 17:51. On the last day of September, in Bandundu, sunrise is at 05:36 and sunset at 17:44 WAT.

Sunshine

In September, the average sunshine in Bandundu is 9.1h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 during September leads to these advisories:
Shield from overexposure. Defense against sun-related harm is required. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.