September weather forecast
Mvagui, Congo

September

Weather in September

September, the first month of the spring in Mvagui, is still a tropical month, with an average temperature varying between 22.7°C (72.9°F) and 31.4°C (88.5°F).

Temperature

The high-temperature average in September for Mvagui is a still hot 31.4°C (88.5°F), staying closely aligned with August's conditions. In Mvagui, the average nighttime temperature during September is a pleasant 22.7°C (72.9°F).

Heat index

In September, the heat index is estimated at a blistering 40°C (104°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In Mvagui, in September, during 27.5 rainfall days, 130mm (5.12") of precipitation is typically accumulated. In Mvagui, during the entire year, the rain falls for 276.3 days and collects up to 1248mm (49.13") of precipitation.

Daylight

In September, the average length of the day is 12h and 7min.
On the first day of September in Mvagui, sunrise is at 05:56 and sunset at 18:02. On the last day of the month, sunrise is at 05:45 and sunset at 17:52 WAT.

Sunshine

The average sunshine in September is 8.4h.

UV index

September is the month with the lowest UV index, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

How hot is September?
The average high-temperature, in September, in Mvagui, is 31.4°C (88.5°F), while the average low-temperature is 22.7°C (72.9°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in September is estimated at 40°C (104°F).
What is the average humidity in September?
The average relative humidity in September is 73%.
How many days does it rain in September?
In September, the rain falls for 27.5 days. Throughout September, 130mm (5.12") of precipitation is accumulated.
What is the average length of the day in September?
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 05:56 and sunset at 18:02. On the last day of the month, sunrise is at 05:45 and sunset at 17:52 WAT.
How many hours of sunshine does Mvagui have in September?
The average sunshine duration in September is 8.4h.
What is the month with the lowest UV index?
The month with the lowest UV index is September, with an average maximum UV index of 6.
What is the UV index reading in September?
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Mvagui, Congo
  • Average high temperature in September: 31.4°C

The warmest month (with the highest average high temperature) is July (33.3°C).
The month with the lowest average high temperature is November (30°C).

  • Average low temperature in September: 22.7°C

The month with the highest average low temperature is August (23.5°C).
The coldest month (with the lowest average low temperature) is November (22.1°C).

Average pressure in September
Mvagui, Congo
  • Average pressure in September: 1011.6mbar

The month with the highest atmospheric pressure is June (1012.1mbar).
The month with the lowest atmospheric pressure is February (1009.3mbar).

Average wind speed in September
Mvagui, Congo
  • Average wind speed in September: 6.1km/h

The windiest month (with the highest average wind speed) is August (6.6km/h).
The calmest month (with the lowest average wind speed) is November (5.1km/h).

Average humidity in September
Mvagui, Congo
  • Average humidity in September: 73%

The months with the highest relative humidity are October and November (81%).
The month with the lowest relative humidity is July (57%).

Average rainfall in September
Mvagui, Congo
  • Average rainfall in September: 130mm

The wettest month (with the highest rainfall) is October (216mm).
The driest month (with the least rainfall) is July (21mm).

Average rainfall days in September
Mvagui, Congo
  • Average rainfall days in September: 27.5 days

The month with the highest number of rainy days is October (30.3 days).
The month with the least rainy days is July (13.2 days).

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

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

  • Average sunshine in September: 8h and 2min

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

Average sunshine days in September
Mvagui, Congo
  • Average sunshine days in September: 1.4 days

The month with the most sunshine days is July (15.9 days).
The month with the least sunshine days is October (0.4 days).

Average UV index in September
Mvagui, 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
Mvagui, Congo
  • Average cloud cover in September: 40

The month with the most cloud cover is October (Cloud cover 47).
The months with the least cloud cover are June and July (Cloud cover 27).

Average visibility in September
Mvagui, Congo
  • Average visibility in September: 9km

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

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