September weather forecastNzangi, Congo

September

Weather in September

The first month of the spring, September, is also a hot month in Nzangi, Congo, with an average temperature fluctuating between 32.3°C (90.1°F) and 22.3°C (72.1°F).

Temperature

In Nzangi, September records the highest average temperatures, peaking at 32.3°C (90.1°F) and reaching a low of 22.3°C (72.1°F).

Heat index

The heat index for September is evaluated at a sweltering 39°C (102.2°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In September, the average relative humidity in Nzangi is 64%.

Rainfall

In Nzangi, during September, the rain falls for 12 days and regularly aggregates up to 18mm (0.71") of precipitation. In Nzangi, during the entire year, the rain falls for 228.5 days and collects up to 1086mm (42.76") of precipitation.

Daylight

The average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 06:04 and sunset at 18:06. On the last day of September, sunrise is at 05:51 and sunset at 18:00 WAT.

Sunshine

The average sunshine in September in Nzangi, Congo, is 8h.

UV index

The months with the highest UV index in Nzangi are March, April, August and September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

September is the warmest month, with the temperature often reaching an average high of 32.3°C (90.1°F) and an average low of 22.3°C (72.1°F).

In September, in Nzangi, the average high-temperature is 32.3°C (90.1°F), and the average low-temperature is 22.3°C (72.1°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 39°C (102.2°F).

The average relative humidity in September in Nzangi is 64%.

In Nzangi, in September, during 12 rainfall days, 18mm (0.71") of precipitation is typically accumulated.

In Nzangi, the average day length in September is 12h and 5min.

On the first day of September in Nzangi, sunrise is at 06:04 and sunset at 18:06. On the last day of the month, sunrise is at 05:51 and sunset at 18:00 WAT.

In September, the average sunshine duration is 8h.

The months with the highest UV index in Nzangi, Congo, are March, April, August and September, with an average maximum UV index of 7.

In Nzangi, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health threat from unsafe 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Nzangi, Congo

  • Average high temperature in September: 32.3°C

The warmest month (with the highest average high temperature) is September (32.3°C).
The month with the lowest average high temperature is December (29.7°C).

  • Average low temperature in September: 22.3°C

The month with the highest average low temperature is October (22.6°C).
The coldest month (with the lowest average low temperature) is July (19.6°C).

Average pressure in September
Nzangi, Congo

  • Average pressure in September: 1013mbar

The month with the highest atmospheric pressure is July (1014.2mbar).
The month with the lowest atmospheric pressure is February (1010.5mbar).

Average wind speed in September
Nzangi, Congo

  • Average wind speed in September: 8.5km/h

The windiest months (with the highest average wind speed) are August and September (8.5km/h).
The calmest months (with the lowest average wind speed) are April and May (4.2km/h).

Average humidity in September
Nzangi, Congo

  • Average humidity in September: 64%

The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (63%).

Average rainfall in September
Nzangi, Congo

  • Average rainfall in September: 18mm

The wettest month (with the highest rainfall) is November (190mm).
The driest month (with the least rainfall) is July (1mm).

Average rainfall days in September
Nzangi, Congo

  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is January (27.8 days).
The month with the least rainy days is July (2.2 days).

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

  • Average daylight in September: 12h and 6min

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 0min

The month with the most sunshine is July (Average sunshine: 8h and 48min).
The month with the least sunshine is October (Average sunshine: 5h and 42min).

Average sunshine days in September
Nzangi, Congo

  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is July (26.2 days).
The month with the least sunshine days is January (2.3 days).

Average UV index in September
Nzangi, Congo

  • Average UV index in September: 7

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

Average cloud cover in September
Nzangi, Congo

  • Average cloud cover in September: 48

The months with the most cloud cover are October and November (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Nzangi, 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).