September weather forecastYaounde, Cameroon

Weather in September

In September, Yaounde's weather achieves its second peak for the year in terms of rainfall, with an impressive 232mm (9.13") precipitation, almost twice the amount compared to August. This increase in rainfall, while substantial, is quite characteristic of Yaounde's equatorial climate. High temperature paired with high humidity continues to navigate the overall climate for the month. Despite the higher rainfall, the city ensures a predictable course of daylight hours for its inhabitants. The UV index stays steady at 12, signifying the persistent presence of harsh sun rays in the region.

Temperature

The initiation of September in Yaounde sees an average high-temperature of a still moderately hot 27.5°C (81.5°F), showing minor variations from the previous month. During the nights in September, Yaounde observes an average low-temperature of 19.3°C (66.7°F).

Heat index

During September, the heat index is estimated at a hot 32°C (89.6°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

The average relative humidity in September in Yaounde is 85.5%.

Rainfall

In September, the rain falls for 20 days. Throughout September, 232mm (9.13") of precipitation is accumulated. In Yaounde, during the entire year, the rain falls for 144 days and collects up to 1541mm (60.67") of precipitation.

Daylight

The average length of the day in September is 12h and 8min.
On the first day of September in Yaounde, sunrise is at 06:08 and sunset at 18:19. On the last day of the month, sunrise is at 06:01 and sunset at 18:06 WAT.

Sunshine

In Yaounde, the average sunshine in September is 3.4h.

UV index

The months with the highest UV index in Yaounde are January through May, August through November, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 12 in September translates into the following instructions:
Utilize all vital precautions. Guarding against sun harm is non-negotiable. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Being cautious under the Sun means limiting direct exposure, especially if you have a tendency to burn. And always wear sunscreen with 30 SPF or higher.