Yaounde
Cameroon
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Yaounde, Cameroon

Dusk view of the Yaounde city, Cameroon, with vast mountain ranges afar
Dusk view of the Yaounde city, Cameroon, with vast mountain ranges afar
The first month of the autumn, September, is also a moderately hot month in Yaounde, Cameroon, with average temperature varying between 27.5°C (81.5°F) and 19.3°C (66.7°F).

Temperature

In Yaounde, the average high-temperature in September is almost the same as in August - a still warm 27.5°C (81.5°F). In Yaounde, Cameroon, in September, the average low-temperature is 19.3°C (66.7°F).

Humidity

The average relative humidity is 85.5%.

Rainfall

In Yaounde, during September, the rain falls for 20 days and regularly aggregates up to 232.3mm (9.1") of precipitation. In Yaounde, during the entire year, the rain falls for 144 days and collects up to 1541.1mm (60.7") of precipitation.

Daylight

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

Sunshine

The average sunshine in September is 3.4h.

UV index

Months with the highest UV index are January through May, August through November, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an excessive health risk from unprotected exposure to the Sun's UV rays for the average person.
The daily maximum UV index of 12 in September interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used.

What is the temperature in September in Yaounde?

The average high-temperature, in September, in Yaounde, Cameroon, is 27.5°C (81.5°F), while the average low-temperature is 19.3°C (66.7°F).

What is the average humidity in September in Yaounde?

In September, the average relative humidity is 85.5%.

How much does it rain in Yaounde in September?

In Yaounde, in September, it is raining for 20 days, with typically 232.3mm (9.1") of accumulated precipitation.

How many hours of daylight does Yaounde have in September?

The average length of the day in September in Yaounde is 12.1h.

How many hours of sunshine does Yaounde have in September?

The average sunshine in September is 3.4h.

When is the highest UV index in Yaounde?

Months with the highest UV index in Yaounde, Cameroon, are January through May, August through November, with an average maximum UV index of 12.

What is the UV index intensity in September in Yaounde?

The average daily maximum UV index in September is 12. A UV Index estimate of 11, and higher, represents an extreme health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in September - Yaounde, Cameroon
  • Average high temperature in September: 27.5°C

The warmest month (with the highest average high temperature) is February (31°C).
Months with the lowest average high temperature are July and August (26.5°C).

  • Average low temperature in September: 19.3°C

Months with the highest average low temperature are February, March and April (20.3°C).
The coldest month (with the lowest average low temperature) is October (19.2°C).

Average humidity in September - Yaounde, Cameroon
  • Average humidity in September: 85.5%

The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is December (79%).

Average rainfall in September - Yaounde, Cameroon
  • Average rainfall in September: 232.3mm

The wettest month (with the highest rainfall) is October (293.6mm).
The driest month (with the lowest rainfall) is December (18.6mm).

Average rainfall days in September - Yaounde, Cameroon
  • Average rainfall days in September: 20 days

The month with the highest number of rainy days is October (23 days).
Months with the lowest number of rainy days are January and December (3 days).

Average daylight in September / Average sunshine in September - Yaounde, Cameroon
  • Average daylight in September: 12.1h

Months with the longest days are May, June and July (Average daylight: 12.3h).
Months with shortest days are January, November and December (Average daylight: 11.9h).

  • Average sunshine in September: 3.4h

The month with most sunshine is February (Average sunshine: 6.4h).
The month with least sunshine is August (Average sunshine: 2.8h).

Average UV index in September - Yaounde, Cameroon
  • Average UV index in September: 12

Months with the highest UV index are January, February, March, April, May, August, September, October and November (UV index 12).
Months with the lowest UV index are June, July and December (UV index 11).