September weather forecast
Bertoua, Cameroon

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Weather in September

September in Bertoua sees a variation in several parameters, with the most striking being the decrease in rainfall levels to 148mm (5.83"). This month experiences a marked dip in wind speeds from the levels witnessed in August. With the end of the monsoon spell nearing, the overall weather conditions show a gradual reduction in the intensity of the wet season. The start of the much-awaited transition from the rain-soaked days towards the drier final quarter of the year is on the horizon.

Temperature

Bertoua's average high-temperature in September is a still warm 27.1°C (80.8°F), marking an insignificant difference from the 26.8°C (80.2°F) of August. In September, the average low-temperature records at a refreshing 19.3°C (66.7°F) during the nights.

Heat index

In September, the average heat index is calculated to be a tropical 31°C (87.8°F). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

With an average relative humidity of 90%, September is the most humid month in Bertoua.

Rainfall

In Bertoua, in September, it is raining for 27.2 days, with typically 148mm (5.83") of accumulated precipitation. In Bertoua, during the entire year, the rain falls for 224.1 days and collects up to 1117mm (43.98") of precipitation.

Daylight

In September, the average length of the day is 12h and 8min.
On the first day of the month, sunrise is at 05:59 and sunset at 18:11. On the last day of September, in Bertoua, sunrise is at 05:52 and sunset at 17:57 WAT.

Sunshine

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

UV index

The months with the lowest UV index in Bertoua are July through September, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

What are September temperatures in Bertoua?

An average high-temperature, in September, in Bertoua, is 27.1°C (80.8°F) and the average low-temperature is 19.3°C (66.7°F). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is calculated to be 31°C (87.8°F).

What is the most humid month in Bertoua?

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

What is the average humidity in September in Bertoua?

The average relative humidity in September in Bertoua is 90%.

How many days does it rain in September in Bertoua?

In Bertoua, Cameroon, during September, the rain falls for 27.2 days and regularly aggregates up to 148mm (5.83") of precipitation.

What is the average length of the day in September in Bertoua?

In Bertoua, Cameroon, the average day length in September is 12h and 8min.

When are sunrise and sunset in September in Bertoua?

On the first day of September, sunrise is at 05:59 and sunset at 18:11. On the last day of the month, sunrise is at 05:52 and sunset at 17:57 WAT.

What is the month with the least sunshine in Bertoua?

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

How many hours of sunshine does Bertoua have in September?

In Bertoua, Cameroon, the average sunshine duration in September is 6.7h.

What is the month with the lowest UV index in Bertoua?

July through September, with an average maximum UV index of 5, are months with the lowest UV index in Bertoua.

How high is the UV index in September in Bertoua?

In September, the average daily maximum UV index in Bertoua, Cameroon, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.

Average temperature in September
Bertoua, Cameroon

Average temperature in September - Bertoua, 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
Bertoua, Cameroon

Average pressure in September - Bertoua, 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
Bertoua, Cameroon

Average wind speed in September - Bertoua, 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
Bertoua, Cameroon

Average humidity in September - Bertoua, 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
Bertoua, Cameroon

Average rainfall in September - Bertoua, 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
Bertoua, Cameroon

Average rainfall days in September - Bertoua, 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
Bertoua, Cameroon

Average daylight in September / Average sunshine in September - Bertoua, 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
Bertoua, Cameroon

Average sunshine days in September - Bertoua, 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
Bertoua, Cameroon

Average UV index in September - Bertoua, 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
Bertoua, Cameroon

Average cloud cover in September - Bertoua, 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
Bertoua, Cameroon

Average visibility in September - Bertoua, 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).

Bertoua, Cameroon

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