September weather forecast and climate
Kinshasa, Democratic Republic of Congo

The first month of the spring, September, is also a hot month in Kinshasa, Democratic Republic of Congo, with average temperature ranging between min 22.9°C (73.2°F) and max 32.5°C (90.5°F).

Temperature

In September, the average high-temperature is almost the same as in August - a still hot 32.5°C (90.5°F). In Kinshasa, the average low-temperature is 22.9°C (73.2°F).

Heat index

The average heat index is estimated at a very hot 38.9°C (102°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, metabolic differences, differences in body mass, height, and shape, and clothing affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. 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 is 62%.

Rainfall

In Kinshasa, it is raining for 17.1 days, with typically 41mm (1.61") of accumulated precipitation. Throughout the year, there are 243.1 rainfall days, and 1109mm (43.66") of precipitation is accumulated.

Daylight

In September, the average length of the day in Kinshasa is 12.1h.

Sunshine

In Kinshasa, the average sunshine in September is 8.7h.

UV index

January, March through May, July through September, with an average maximum UV index of 7, are months with the highest UV index in Kinshasa. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.