September weather forecast
Ntembo, Congo

September

Weather in September

September, the first month of the spring in Ntembo, is still a tropical month, with an average temperature varying between 22.8°C (73°F) and 32.5°C (90.5°F).

Temperature

In Ntembo, the month of September is known for its highest average temperatures, reaching a high of 32.5°C (90.5°F) and a low of 22.8°C (73°F).

Heat index

The heat index for September is appraised at a very hot 39°C (102.2°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In September, the average relative humidity is 61%.

Rainfall

In Ntembo, during September, the rain falls for 14.5 days and regularly aggregates up to 27mm (1.06") of precipitation. In Ntembo, during the entire year, the rain falls for 234.2 days and collects up to 1298mm (51.1") of precipitation.

Daylight

The average length of the day in September is 12h and 5min.
On the first day of September, sunrise is at 06:02 and sunset at 18:04. On the last day of the month, sunrise is at 05:49 and sunset at 17:57 WAT.

Sunshine

In September, the average sunshine is 8.3h.

UV index

The months with the highest UV index in Ntembo are August and September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

What time of the year is the hottest?
September is the warmest month, with an average high-temperature of 32.5°C (90.5°F) and an average low-temperature of 22.8°C (73°F).
How hot does it get in September?
An average high-temperature, in September, in Ntembo, is 32.5°C (90.5°F) and the average low-temperature is 22.8°C (73°F). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 39°C (102.2°F).
What is the average humidity in September?
The average relative humidity in September is 61%.
How many days does it rain in September?
In September, the rain falls for 14.5 days. Throughout September, 27mm (1.06") of precipitation is accumulated.
What is the average length of the day in September?
In September, the average day length is 12h and 5min.
What time are sunrise and sunset in September in Ntembo?
On the first day of September, sunrise is at 06:02 and sunset at 18:04. On the last day of the month, sunrise is at 05:49 and sunset at 17:57 WAT.
How long on average sun shines in September?
In September, the average sunshine duration is 8.3h.
What are the months with the highest UV index?
August and September, with an average maximum UV index of 7, are months with the highest UV index.
How high is the UV index in September in Ntembo?
The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high hazard to health 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 - Ntembo, Congo
Average temperature in September
Ntembo, Congo
  • Average high temperature in September: 32.5°C

The warmest month (with the highest average high temperature) is September (32.5°C).
The month with the lowest average high temperature is December (29.2°C).

  • Average low temperature in September: 22.8°C

The month with the highest average low temperature is September (22.8°C).
The coldest month (with the lowest average low temperature) is July (20°C).

Average pressure in September - Ntembo, Congo
Average pressure in September
Ntembo, Congo
  • Average pressure in September: 1012.7mbar

The month with the highest atmospheric pressure is July (1013.9mbar).
The month with the lowest atmospheric pressure is February (1010.6mbar).

Average wind speed in September - Ntembo, Congo
Average wind speed in September
Ntembo, Congo
  • Average wind speed in September: 9km/h

The windiest month (with the highest average wind speed) is August (9.4km/h).
The calmest month (with the lowest average wind speed) is April (4.8km/h).

Average humidity in September - Ntembo, Congo
Average humidity in September
Ntembo, Congo
  • Average humidity in September: 61%

The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (59%).

Average rainfall in September - Ntembo, Congo
Average rainfall in September
Ntembo, Congo
  • Average rainfall in September: 27mm

The wettest month (with the highest rainfall) is November (234mm).
The driest month (with the least rainfall) is July (1mm).

Average rainfall days in September - Ntembo, Congo
Average rainfall days in September
Ntembo, Congo
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is December (28.7 days).
The month with the least rainy days is July (2.6 days).

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

The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is October (Average sunshine: 5h and 36min).

Average sunshine days in September - Ntembo, Congo
Average sunshine days in September
Ntembo, Congo
  • Average sunshine days in September: 10.7 days

The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is November (1.2 days).

Average UV index in September - Ntembo, Congo
Average UV index in September
Ntembo, Congo
  • Average UV index in September: 7

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

Average cloud cover in September - Ntembo, Congo
Average cloud cover in September
Ntembo, Congo
  • Average cloud cover in September: 45

The month with the most cloud cover is November (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in September - Ntembo, Congo
Average visibility in September
Ntembo, Congo
  • Average visibility in September: 10km

The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (7km).

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