September weather forecast
Ouesso, Congo

With September in Ouesso, Congo, the residents brace for additional rainfall, reaching up to 106mm (4.17"). This month retains the pattern of high humidity levels and deduced sunshine hours following August. However, a slight decrease in temperature indicates the progressive shift towards the end of summer. In essence, September gracefully blurs the line between the rain-laden monsoons and the relatively cooler forthcoming months.

Temperature

With average temperatures fluctuating between a high of 30.5°C (86.9°F) and a low of 21.2°C (70.2°F), September stands out as the coldest month.

Heat index

In September, the heat index is appraised at a scorching 40°C (104°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The average relative humidity in September is 83%.

Rainfall

In September, the rain falls for 25.8 days. Throughout September, 106mm (4.17") of precipitation is accumulated. Throughout the year, there are 254.7 rainfall days, and 1034mm (40.71") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 7min.
On the first day of September, sunrise is at 05:51 and sunset at 18:00. On the last day of the month, sunrise is at 05:42 and sunset at 17:48 WAT.

Sunshine

The average sunshine in September is 7.5h.

UV index

The months with the lowest UV index are June, August through October, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 6 suggests this advice:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.