September weather forecast
Ouesso, Congo

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Weather in September

With September in Ouesso, Congo, the residents brace for additional rainfall, reaching up to 106mm (4.17"). This month retains the pattern of high humidity levels and deduced sunshine hours following August. However, a slight decrease in temperature indicates the progressive shift towards the end of summer. In essence, September gracefully blurs the line between the rain-laden monsoons and the relatively cooler forthcoming months.

Temperature

The coldest period tends to be September, when average temperatures fluctuate between a high of 30.5°C (86.9°F) and a low of 21.2°C (70.2°F).

Heat index

The heat index value for September is computed to be a blistering 40°C (104°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The average relative humidity in September is 83%.

Rainfall

In September, in Ouesso, the rain falls for 25.8 days. Throughout September, 106mm (4.17") of precipitation is accumulated. Throughout the year, there are 254.7 rainfall days, and 1034mm (40.71") of precipitation is accumulated.

Daylight

In September, the average length of the day in Ouesso is 12h and 7min.
On the first day of September in Ouesso, Congo, sunrise is at 05:51 and sunset at 18:00. On the last day of the month, sunrise is at 05:42 and sunset at 17:48 WAT.

Sunshine

The average sunshine in September in Ouesso is 7.5h.

UV index

June, August through October, with an average maximum UV index of 6, are months with the lowest UV index in Ouesso. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during September translates into the following guidance:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

What is the coldest month in Ouesso?

In Ouesso, the lowest temperatures are generally noted in September, averaging a high of 30.5°C (86.9°F) and a low of 21.2°C (70.2°F).

How hot does it get in Ouesso in September?

During September, Ouesso experiences an average high-temperature of 30.5°C (86.9°F) and a low-temperature of 21.2°C (70.2°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in September is computed to be 40°C (104°F).

What is the average humidity in September in Ouesso?

In Ouesso, the average relative humidity in September is 83%.

How many days does it rain in September in Ouesso?

In Ouesso, Congo, in September, during 25.8 rainfall days, 106mm (4.17") of precipitation is typically accumulated.

How many hours of daylight does Ouesso have in September?

In Ouesso, Congo, the average day length in September is 12h and 7min.

When is the sunrise / sunset in September in Ouesso?

In September, on the first day of the month, sunrise is at 05:51 and sunset at 18:00. On the last day of the month, sunrise is at 05:42 and sunset at 17:48 WAT.

How many hours of sunshine does Ouesso have in September?

In Ouesso, Congo, the average sunshine duration in September is 7.5h.

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

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

What is the UV index reading in September in Ouesso?

In Ouesso, Congo, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.

Average temperature in September
Ouesso, Congo

Average temperature in September - Ouesso, Congo
  • Average high temperature in September: 30.5°C

The warmest month (with the highest average high temperature) is January (35.7°C).
The month with the lowest average high temperature is September (30.5°C).

  • Average low temperature in September: 21.2°C

The months with the highest average low temperature are February and March (22.3°C).
The coldest month (with the lowest average low temperature) is September (21.2°C).

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Average pressure in September
Ouesso, Congo

Average pressure in September - Ouesso, Congo
  • Average pressure in September: 1011.8mbar

The month with the highest atmospheric pressure is July (1012.3mbar).
The month with the lowest atmospheric pressure is February (1008.8mbar).

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Average wind speed in September
Ouesso, Congo

Average wind speed in September - Ouesso, Congo
  • Average wind speed in September: 4.1km/h

The windiest months (with the highest average wind speed) are February and March (4.5km/h).
The calmest month (with the lowest average wind speed) is November (3.5km/h).

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Average humidity in September
Ouesso, Congo

Average humidity in September - Ouesso, Congo
  • Average humidity in September: 83%

The month with the highest relative humidity is October (84%).
The month with the lowest relative humidity is January (54%).

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Average rainfall in September
Ouesso, Congo

Average rainfall in September - Ouesso, Congo
  • Average rainfall in September: 106mm

The wettest month (with the highest rainfall) is October (147mm).
The driest month (with the least rainfall) is January (22mm).

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Average rainfall days in September
Ouesso, Congo

Average rainfall days in September - Ouesso, Congo
  • Average rainfall days in September: 25.8 days

The month with the highest number of rainy days is October (28.1 days).
The month with the least rainy days is January (9.3 days).

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Average daylight in September /
Average sunshine in September
Ouesso, Congo

Average daylight in September / Average sunshine in September - Ouesso, Congo
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).

  • Average sunshine in September: 7h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is October (Average sunshine: 7h and 18min).

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Average sunshine days in September
Ouesso, Congo

Average sunshine days in September - Ouesso, Congo
  • Average sunshine days in September: 3.2 days

The month with the most sunshine days is January (18.5 days).
The month with the least sunshine days is October (2.1 days).

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Average UV index in September
Ouesso, Congo

Average UV index in September - Ouesso, Congo
  • Average UV index in September: 6

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

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Average cloud cover in September
Ouesso, Congo

Average cloud cover in September - Ouesso, Congo
  • Average cloud cover in September: 52

The month with the most cloud cover is October (Cloud cover 56).
The month with the least cloud cover is January (Cloud cover 19).

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Average visibility in September
Ouesso, Congo

Average visibility in September - Ouesso, Congo
  • Average visibility in September: 7km

The months with the highest visibility are January and December (10km).
The months with the lowest visibility are September and October (7km).

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Ouesso, Congo

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