September weather forecast
Bonabéri, Cameroon

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Weather in September

September is characterized by a recognizable withdrawal of the monsoon trends in Bonabéri. As the rains retreat, the city witnesses a drop in precipitation volumes to 165mm (6.5"). The cloud cover decreases, allowing the return of sunny days. On the wind front, this month registers a noticeable decrease in wind speed. The overall weather condition paves the way for the upcoming drier months.

Temperature

The weather in Bonabéri during September records an average high-temperature of a still moderately hot 28.7°C (83.7°F), closely mirroring the preceding month. Bonabéri throughout September, experiences an average nighttime temperature of 23.4°C (74.1°F).

Heat index

September's mean heat index is calculated to be a torrid 35°C (95°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Heat index determinations are made taking into account the shade and light air movements. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In Bonabéri, the average relative humidity in September is 84%.

Rainfall

In Bonabéri, in September, during 25.8 rainfall days, 165mm (6.5") of precipitation is typically accumulated. In Bonabéri, during the entire year, the rain falls for 272.8 days and collects up to 1382mm (54.41") of precipitation.

Sea temperature

In September, the average sea temperature is 26.6°C (79.9°F).
Note: For engaging in water activities including swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are perceived as perfect, providing pleasure for extended durations.

Daylight

The average length of the day in September is 12h and 8min.
On the first day of the month, sunrise is at 06:15 and sunset at 18:26. On the last day of September, in Bonabéri, sunrise is at 06:08 and sunset at 18:13 WAT.

Sunshine

In Bonabéri, the average sunshine in September is 7h.

UV index

June through September, with an average maximum UV index of 6, are months with the lowest UV index in Bonabéri. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 during September translates into the following guidance:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.
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Frequently asked questions

Is it hot in Bonabéri during September?

The high-temperature during September is 28.7°C (83.7°F) and the low-temperature is 23.4°C (74.1°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is calculated to be 35°C (95°F).

What is the average humidity in September in Bonabéri?

The average relative humidity in September in Bonabéri is 84%.

How much does it rain in Bonabéri in September?

In Bonabéri, Cameroon, in September, it is raining for 25.8 days, with typically 165mm (6.5") of accumulated precipitation.

What is the sea water temperature in September in Bonabéri?

In Bonabéri, Cameroon, in September, the average water temperature is 26.6°C (79.9°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

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

The average day length in September in Bonabéri, Cameroon, is 12h and 8min.

What time are sunrise and sunset in September in Bonabéri?

In September, on the first day of the month, sunrise is at 06:15 and sunset at 18:26. On the last day of the month, sunrise is at 06:08 and sunset at 18:13 WAT.

How long on average sun shines in September in Bonabéri?

In September, the average sunshine duration in Bonabéri is 7h.

What are the months with the lowest UV index in Bonabéri?

June through September, with an average maximum UV index of 6, are months with the lowest UV index.

What is the UV index intensity in September in Bonabéri?

The average daily maximum UV index in September in Bonabéri, Cameroon, is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.

Average temperature in September
Bonabéri, Cameroon

Average temperature in September - Bonabéri, Cameroon
  • Average high temperature in September: 28.7°C

The warmest months (with the highest average high temperature) are January and February (33.7°C).
The months with the lowest average high temperature are July and August (27.9°C).

  • Average low temperature in September: 23.4°C

The month with the highest average low temperature is March (25.6°C).
The coldest months (with the lowest average low temperature) are July and September (23.4°C).

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Average pressure in September
Bonabéri, Cameroon

Average pressure in September - Bonabéri, Cameroon
  • Average pressure in September: 1013.1mbar

The month with the highest atmospheric pressure is July (1013.9mbar).
The month with the lowest atmospheric pressure is February (1010.1mbar).

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Average wind speed in September
Bonabéri, Cameroon

Average wind speed in September - Bonabéri, Cameroon
  • Average wind speed in September: 6.7km/h

The windiest month (with the highest average wind speed) is August (7.9km/h).
The calmest months (with the lowest average wind speed) are October and November (6km/h).

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Average humidity in September
Bonabéri, Cameroon

Average humidity in September - Bonabéri, Cameroon
  • Average humidity in September: 84%

The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January and February (72%).

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Average rainfall in September
Bonabéri, Cameroon

Average rainfall in September - Bonabéri, Cameroon
  • Average rainfall in September: 165mm

The wettest month (with the highest rainfall) is July (249mm).
The driest month (with the least rainfall) is December (23mm).

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Average rainfall days in September
Bonabéri, Cameroon

Average rainfall days in September - Bonabéri, Cameroon
  • Average rainfall days in September: 25.8 days

The months with the highest number of rainy days are July and October (28 days).
The month with the least rainy days is December (14.3 days).

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Average sea temperature in September
Bonabéri, Cameroon

Average sea temperature in September - Bonabéri, Cameroon
  • Average sea temperature in September: 26.6°C

The best month for swimming (with the highest average sea temperature) is April (28.8°C).
The coldest month (with the lowest average sea temperature) is August (25.7°C).

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Average daylight in September /
Average sunshine in September
Bonabéri, Cameroon

Average daylight in September / Average sunshine in September - Bonabéri, 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: 7h and 0min

The month with the most sunshine is December (Average sunshine: 9h and 24min).
The month with the least sunshine is July (Average sunshine: 5h and 36min).

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Average sunshine days in September
Bonabéri, Cameroon

Average sunshine days in September - Bonabéri, Cameroon
  • Average sunshine days in September: 3.1 days

The month with the most sunshine days is January (10.8 days).
The month with the least sunshine days is October (2 days).

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Average UV index in September
Bonabéri, Cameroon

Average UV index in September - Bonabéri, Cameroon
  • Average UV index in September: 6

The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are June, July, August and September (UV index 6).

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Average cloud cover in September
Bonabéri, Cameroon

Average cloud cover in September - Bonabéri, Cameroon
  • Average cloud cover in September: 55

The month with the most cloud cover is July (Cloud cover 65).
The month with the least cloud cover is December (Cloud cover 21).

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Average visibility in September
Bonabéri, Cameroon

Average visibility in September - Bonabéri, Cameroon
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are April, May, June, July, August, September, October and November (9km).

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Bonabéri, Cameroon

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