September weather forecast
Matemba, Congo

September

Weather in September

September, the first month of the spring in Matemba, is also a moderately hot month, with temperature in the range of an average low of 21.2°C (70.2°F) and an average high of 29.3°C (84.7°F).

Temperature

The initiation of September records an average high-temperature of a moderately hot 29.3°C (84.7°F), displaying a near consistency with the previous month. The average temperature during September nights dips to an agreeable 21.2°C (70.2°F).

Heat index

The heat index for September is estimated at a torrid 35°C (95°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Matemba, Congo, in September, during 18.1 rainfall days, 44mm (1.73") of precipitation is typically accumulated. In Matemba, during the entire year, the rain falls for 274.1 days and collects up to 1640mm (64.57") of precipitation.

Daylight

In Matemba, Congo, the average length of the day in September is 12h and 6min.
On the first day of September, sunrise is at 06:10 and sunset at 18:14. On the last day of the month, sunrise is at 05:58 and sunset at 18:06 WAT.

Sunshine

The average sunshine in September in Matemba is 4.9h.

UV index

The months with the highest UV index are January through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 6 during September, leads to the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.

Frequently asked questions

How hot is September in Matemba?
The average high-temperature and low-temperature during September are 29.3°C (84.7°F) and 21.2°C (70.2°F) respectively. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is estimated at 35°C (95°F).
What is the average humidity in September in Matemba?
In Matemba, the average relative humidity in September is 77%.
How much does it rain in Matemba in September?
In Matemba, in September, during 18.1 rainfall days, 44mm (1.73") of precipitation is typically accumulated.
What is the average length of the day in September in Matemba?
In September, the average day length in Matemba is 12h and 6min.
When is the sunrise / sunset in September in Matemba?
In September, on the first day of the month, sunrise is at 06:10 and sunset at 18:14. On the last day of the month, in Matemba, sunrise is at 05:58 and sunset at 18:06 WAT.
How many hours of sunshine does Matemba have in September?
In September, the average sunshine duration is 4.9h.
What is the month with the highest UV index in Matemba?
January through September, with an average maximum UV index of 6, are months with the highest UV index.
What is the UV index reading in September in Matemba?
In Matemba, Congo, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes 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
Matemba, Congo
  • Average high temperature in September: 29.3°C

The warmest month (with the highest average high temperature) is March (30.6°C).
The month with the lowest average high temperature is November (28.3°C).

  • Average low temperature in September: 21.2°C

The month with the highest average low temperature is March (21.9°C).
The coldest month (with the lowest average low temperature) is July (18.6°C).

Average pressure in September
Matemba, Congo
  • Average pressure in September: 1013.2mbar

The month with the highest atmospheric pressure is July (1014.4mbar).
The months with the lowest atmospheric pressure are February and March (1010.3mbar).

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

The windiest month (with the highest average wind speed) is August (6.5km/h).
The calmest months (with the lowest average wind speed) are January and December (4km/h).

Average humidity in September
Matemba, Congo
  • Average humidity in September: 77%

The month with the highest relative humidity is November (91%).
The month with the lowest relative humidity is August (72%).

Average rainfall in September
Matemba, Congo
  • Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is November (267mm).
The driest month (with the least rainfall) is July (4mm).

Average rainfall days in September
Matemba, Congo
  • Average rainfall days in September: 18.1 days

The month with the highest number of rainy days is December (30.2 days).
The month with the least rainy days is July (6.3 days).

Average daylight in September /
Average sunshine in September
Matemba, 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: 12h and 0min).

  • Average sunshine in September: 4h and 5min

The month with the most sunshine is July (Average sunshine: 7h and 18min).
The month with the least sunshine is October (Average sunshine: 4h and 42min).

Average sunshine days in September
Matemba, Congo
  • Average sunshine days in September: 6.9 days

The month with the most sunshine days is July (20.7 days).
The months with the least sunshine days are November and December (0.5 days).

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

The months with the highest UV index are January, February, March, April, May, June, July, August and September (UV index 6).
The months with the lowest UV index are October, November and December (UV index 5).

Average cloud cover in September
Matemba, Congo
  • Average cloud cover in September: 70

The month with the most cloud cover is October (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 50).

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

The month with the highest visibility is August (10km).
The month with the lowest visibility is November (5km).

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