September weather forecast
Kiani, Congo

September

Weather in September

The first month of the spring, September, is also a hot month in Kiani, Congo, with temperature in the range of an average low of 22.7°C (72.9°F) and an average high of 32.5°C (90.5°F).

Temperature

The arrival of September brings an average high-temperature of a still tropical 32.5°C (90.5°F), nearly identical to August's 34.2°C (93.6°F). Throughout September, an average low-temperature of 22.7°C (72.9°F) is expected.

Heat index

During September, the heat index is appraised at a scorching 42°C (107.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In September, the average relative humidity is 70%.

Rainfall

In Kiani, in September, it is raining for 27.1 days, with typically 109mm (4.29") of accumulated precipitation. Throughout the year, there are 277.8 rainfall days, and 1195mm (47.05") of precipitation is accumulated.

Daylight

In Kiani, the average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 05:55 and sunset at 17:59. On the last day of September, sunrise is at 05:43 and sunset at 17:51 WAT.

Sunshine

The average sunshine in September is 8.7h.

UV index

September is the month with the lowest UV index, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 6 during September, leads to the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

How hot does it get in September?
The average high-temperature and low-temperature during September are 32.5°C (90.5°F) and 22.7°C (72.9°F) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is appraised at 42°C (107.6°F).
What is the average humidity in September?
In September, the average relative humidity is 70%.
How much does it rain in September?
In September, the rain falls for 27.1 days. Throughout September, 109mm (4.29") of precipitation is accumulated.
What is the average length of the day in September?
In Kiani, Congo, the average day length in September is 12h and 5min.
When are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 05:55 and sunset at 17:59. On the last day of the month, in Kiani, sunrise is at 05:43 and sunset at 17:51 WAT.
How many hours of sunshine does Kiani have in September?
In September, the average sunshine duration is 8.7h.
When is the lowest UV index?
With an average maximum UV index of 6, September is the month with the lowest UV index.
How high is the UV index in September?
In Kiani, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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 - Kiani, Congo
Average temperature in September
Kiani, Congo
  • Average high temperature in September: 32.5°C

The warmest month (with the highest average high temperature) is August (34.2°C).
The month with the lowest average high temperature is November (30.3°C).

  • Average low temperature in September: 22.7°C

The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is November (21.6°C).

Average pressure in September - Kiani, Congo
Average pressure in September
Kiani, Congo
  • Average pressure in September: 1011.3mbar

The month with the highest atmospheric pressure is June (1012mbar).
The month with the lowest atmospheric pressure is February (1009.4mbar).

Average wind speed in September - Kiani, Congo
Average wind speed in September
Kiani, Congo
  • Average wind speed in September: 6km/h

The windiest month (with the highest average wind speed) is August (6.4km/h).
The calmest month (with the lowest average wind speed) is November (4.9km/h).

Average humidity in September - Kiani, Congo
Average humidity in September
Kiani, Congo
  • Average humidity in September: 70%

The month with the highest relative humidity is November (81%).
The month with the lowest relative humidity is July (53%).

Average rainfall in September - Kiani, Congo
Average rainfall in September
Kiani, Congo
  • Average rainfall in September: 109mm

The wettest month (with the highest rainfall) is October (193mm).
The driest month (with the least rainfall) is July (12mm).

Average rainfall days in September - Kiani, Congo
Average rainfall days in September
Kiani, Congo
  • Average rainfall days in September: 27.1 days

The month with the highest number of rainy days is October (29.6 days).
The month with the least rainy days is July (8.3 days).

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

The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is January (Average sunshine: 10h and 36min).
The month with the least sunshine is November (Average sunshine: 7h and 48min).

Average sunshine days in September - Kiani, Congo
Average sunshine days in September
Kiani, Congo
  • Average sunshine days in September: 2.3 days

The month with the most sunshine days is July (20.1 days).
The month with the least sunshine days is October (0.7 days).

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

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

Average cloud cover in September - Kiani, Congo
Average cloud cover in September
Kiani, Congo
  • Average cloud cover in September: 37

The month with the most cloud cover is November (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 23).

Average visibility in September - Kiani, Congo
Average visibility in September
Kiani, Congo
  • Average visibility in September: 9km

The months with the highest visibility are June, July and August (10km).
The month with the lowest visibility is November (8km).

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