September weather forecast
Mandjou, Cameroon

September

Weather in September

September, the first month of the autumn in Mandjou, is also a moderately hot month, with an average temperature varying between 27.1°C (80.8°F) and 19.3°C (66.7°F).

Temperature

Mandjou experiences a minor change to a still warm 27.1°C (80.8°F) in average high-temperature during September, closely reflecting August. In Mandjou, the average nighttime temperature during September is an enjoyable 19.3°C (66.7°F).

Heat index

September's average heat index is calculated to be a hot 31°C (87.8°F). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

The most humid month in Mandjou is September, with an average relative humidity of 90%.

Rainfall

In Mandjou, during September, the rain falls for 27.2 days and regularly aggregates up to 148mm (5.83") of precipitation. Throughout the year, there are 224.1 rainfall days, and 1117mm (43.98") of precipitation is accumulated.

Daylight

In September, the average length of the day in Mandjou is 12h and 8min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:10. On the last day of September, sunrise is at 05:52 and sunset at 17:57 WAT.

Sunshine

The months with the least sunshine in Mandjou are September and October, with an average of 6.7h of sunshine.

UV index

The months with the lowest UV index are July through September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

What are September temperatures in Mandjou?
In Mandjou, 27.1°C (80.8°F) is the average high-temperature and 19.3°C (66.7°F) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 31°C (87.8°F).
What is the most humid month in Mandjou?
The most humid month in Mandjou, Cameroon, is September, with an average relative humidity of 90%.
What is the average humidity in September in Mandjou?
In Mandjou, Cameroon, the average relative humidity in September is 90%.
How many days does it rain in September in Mandjou?
In Mandjou, in September, it is raining for 27.2 days, with typically 148mm (5.83") of accumulated precipitation.
How many hours of daylight does Mandjou have in September?
The average day length in September in Mandjou is 12h and 8min.
When are sunrise and sunset in September in Mandjou?
On the first day of September in Mandjou, sunrise is at 05:58 and sunset at 18:10. On the last day of the month, sunrise is at 05:52 and sunset at 17:57 WAT.
What are the months with the least sunshine in Mandjou?
September and October, with an average of 6.7h of sunshine, are months with the least sunshine in Mandjou, Cameroon.
How many hours of sunshine does Mandjou have in September?
In Mandjou, the average sunshine duration in September is 6.7h.
What is the month with the lowest UV index in Mandjou?
The months with the lowest UV index in Mandjou are July through September, with an average maximum UV index of 5.
How high is the UV index in September in Mandjou?
The average daily maximum UV index in September in Mandjou is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Mandjou, Cameroon
  • Average high temperature in September: 27.1°C

The warmest month (with the highest average high temperature) is February (35.2°C).
The month with the lowest average high temperature is August (26.8°C).

  • Average low temperature in September: 19.3°C

The months with the highest average low temperature are February and March (22.1°C).
The coldest month (with the lowest average low temperature) is July (19.2°C).

Average pressure in September
Mandjou, Cameroon
  • Average pressure in September: 1012.7mbar

The month with the highest atmospheric pressure is July (1013.5mbar).
The month with the lowest atmospheric pressure is February (1009.2mbar).

Average wind speed in September
Mandjou, Cameroon
  • Average wind speed in September: 5.9km/h

The windiest month (with the highest average wind speed) is February (7.7km/h).
The calmest month (with the lowest average wind speed) is October (5.3km/h).

Average humidity in September
Mandjou, Cameroon
  • Average humidity in September: 90%

The month with the highest relative humidity is September (90%).
The month with the lowest relative humidity is January (34%).

Average rainfall in September
Mandjou, Cameroon
  • Average rainfall in September: 148mm

The wettest month (with the highest rainfall) is October (175mm).
The driest month (with the least rainfall) is December (2mm).

Average rainfall days in September
Mandjou, Cameroon
  • Average rainfall days in September: 27.2 days

The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is December (1.9 days).

Average daylight in September /
Average sunshine in September
Mandjou, Cameroon
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).

  • Average sunshine in September: 6h and 4min

The month with the most sunshine is April (Average sunshine: 10h and 24min).
The months with the least sunshine are September and October (Average sunshine: 6h and 42min).

Average sunshine days in September
Mandjou, Cameroon
  • Average sunshine days in September: 1.6 days

The month with the most sunshine days is January (28.2 days).
The month with the least sunshine days is August (1.3 days).

Average UV index in September
Mandjou, Cameroon
  • Average UV index in September: 5

The months with the highest UV index are January, February, March, April, November and December (UV index 7).
The months with the lowest UV index are July, August and September (UV index 5).

Average cloud cover in September
Mandjou, Cameroon
  • Average cloud cover in September: 62

The month with the most cloud cover is August (Cloud cover 64).
The month with the least cloud cover is January (Cloud cover 8).

Average visibility in September
Mandjou, Cameroon
  • Average visibility in September: 6km

The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are August and September (6km).

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