September weather forecast
Ombele, Congo

September

Weather in September

September, the first month of the spring in Ombele, is also a hot month, with an average temperature fluctuating between 21.8°C (71.2°F) and 30.5°C (86.9°F).

Temperature

In September, Ombele notes an average high-temperature of a still tropical 30.5°C (86.9°F), hardly different from the preceding month. An average minimum temperature of 21.8°C (71.2°F) is recorded in Ombele during the month of September.

Heat index

For September, the heat index is calculated to be an extremely hot 40°C (104°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In September, the average relative humidity is 81%.

Rainfall

In Ombele, Congo, in September, during 27.2 rainfall days, 132mm (5.2") of precipitation is typically accumulated. In Ombele, during the entire year, the rain falls for 270.9 days and collects up to 1169mm (46.02") of precipitation.

Daylight

The average length of the day in September is 12h and 7min.
On the first day of September, sunrise is at 05:53 and sunset at 17:59. On the last day of the month, sunrise is at 05:42 and sunset at 17:49 WAT.

Sunshine

In Ombele, the average sunshine in September is 7.9h.

UV index

August through October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

Is it hot during September?
The average high-temperature, in September, in Ombele, is 30.5°C (86.9°F), while the average low-temperature is 21.8°C (71.2°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 40°C (104°F).
What is the average humidity in September?
The average relative humidity in September is 81%.
How many days does it rain in September?
In Ombele, in September, during 27.2 rainfall days, 132mm (5.2") of precipitation is typically accumulated.
What is the average length of the day in September?
In Ombele, the average day length in September is 12h and 7min.
What time are sunrise and sunset in September?
On the first day of September, sunrise is at 05:53 and sunset at 17:59. On the last day of the month, sunrise is at 05:42 and sunset at 17:49 WAT.
How many hours of sunshine does Ombele have in September?
In Ombele, the average sunshine duration in September is 7.9h.
When is the lowest UV index?
August through October, with an average maximum UV index of 6, are months with the lowest UV index.
How high is the UV index in September?
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
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
Ombele, Congo
  • Average high temperature in September: 30.5°C

The warmest month (with the highest average high temperature) is January (34.3°C).
The month with the lowest average high temperature is October (30.1°C).

  • Average low temperature in September: 21.8°C

The month with the highest average low temperature is February (23.1°C).
The coldest month (with the lowest average low temperature) is October (21.5°C).

Average pressure in September
Ombele, 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 (1009mbar).

Average wind speed in September
Ombele, Congo
  • Average wind speed in September: 5km/h

The windiest month (with the highest average wind speed) is August (5.4km/h).
The calmest month (with the lowest average wind speed) is November (4.1km/h).

Average humidity in September
Ombele, Congo
  • Average humidity in September: 81%

The month with the highest relative humidity is October (85%).
The month with the lowest relative humidity is January (63%).

Average rainfall in September
Ombele, Congo
  • Average rainfall in September: 132mm

The wettest month (with the highest rainfall) is October (182mm).
The driest month (with the least rainfall) is January (33mm).

Average rainfall days in September
Ombele, Congo
  • Average rainfall days in September: 27.2 days

The month with the highest number of rainy days is October (28.7 days).
The month with the least rainy days is January (14.2 days).

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

The month with the longest days is December (Average daylight: 12h and 6min).
The month with the shortest days is June (Average daylight: 12h and 6min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is October (Average sunshine: 7h and 12min).

Average sunshine days in September
Ombele, Congo
  • Average sunshine days in September: 1.9 days

The month with the most sunshine days is January (14.6 days).
The month with the least sunshine days is October (1.5 days).

Average UV index in September
Ombele, Congo
  • Average UV index in September: 6

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

Average cloud cover in September
Ombele, Congo
  • Average cloud cover in September: 45

The month with the most cloud cover is October (Cloud cover 53).
The month with the least cloud cover is January (Cloud cover 26).

Average visibility in September
Ombele, Congo
  • Average visibility in September: 8km

The months with the highest visibility are January and July (10km).
The month with the lowest visibility is October (7km).

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