September weather forecast
Onquenha, Angola

September

Weather in September

The first month of the spring, September, is still a warm month in Onquenha, Angola, with an average temperature ranging between min 13.7°C (56.7°F) and max 29.6°C (85.3°F).

Temperature

Onquenha witnesses the warmest weather in September, with temperatures averaging a high of 29.6°C (85.3°F) and a low of 13.7°C (56.7°F).

Heat index

In September, the average heat index is estimated at a tropical 30°C (86°F). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', quantifies the warmth felt when relative humidity is considered. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

In September, the average relative humidity is 48%.

Rainfall

In Onquenha, in September, it is raining for 5.2 days, with typically 22mm (0.87") of accumulated precipitation. In Onquenha, during the entire year, the rain falls for 170.5 days and collects up to 1898mm (74.72") of precipitation.

Daylight

In Onquenha, the average length of the day in September is 12h and 1min.
On the first day of September, sunrise is at 06:04 and sunset at 17:53. On the last day of the month, sunrise is at 05:41 and sunset at 17:55 WAT.

Sunshine

The average sunshine in September is 10.9h.

UV index

The months with the highest UV index are August and September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 in September transforms into the following instructions:
Shield from overexposure. Defense against sun-related harm is required. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What month is the hottest?
September, with average temperatures reaching a high of 29.6°C (85.3°F) and a low of 13.7°C (56.7°F), is the warmest month.
How hot is it in Onquenha in September?
In September, the average high-temperature and low-temperature are 29.6°C (85.3°F) and 13.7°C (56.7°F) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 30°C (86°F).
What is the average humidity in September in Onquenha?
In Onquenha, the average relative humidity in September is 48%.
How many days does it rain in September?
In Onquenha, during September, the rain falls for 5.2 days and regularly aggregates up to 22mm (0.87") of precipitation.
What is the average length of the day in September?
The average day length in September is 12h and 1min.
What time are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 06:04 and sunset at 17:53. On the last day of the month, sunrise is at 05:41 and sunset at 17:55 WAT.
How many hours of sunshine does Onquenha have in September?
The average sunshine duration in September is 10.9h.
When is the highest UV index?
The months with the highest UV index are August and 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 estimate 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
Onquenha, Angola
  • Average high temperature in September: 29.6°C

The warmest month (with the highest average high temperature) is September (29.6°C).
The months with the lowest average high temperature are January and March (23.3°C).

  • Average low temperature in September: 13.7°C

The month with the highest average low temperature is November (16.5°C).
The coldest months (with the lowest average low temperature) are June and July (10.4°C).

Average pressure in September
Onquenha, Angola
  • Average pressure in September: 1013.2mbar

The month with the highest atmospheric pressure is July (1016mbar).
The months with the lowest atmospheric pressure are February and November (1011.2mbar).

Average wind speed in September
Onquenha, Angola
  • Average wind speed in September: 6.9km/h

The windiest month (with the highest average wind speed) is July (7.9km/h).
The calmest month (with the lowest average wind speed) is February (4.9km/h).

Average humidity in September
Onquenha, Angola
  • Average humidity in September: 48%

The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is August (38%).

Average rainfall in September
Onquenha, Angola
  • Average rainfall in September: 22mm

The wettest month (with the highest rainfall) is March (366mm).
The driest months (with the least rainfall) are June and July (0mm).

Average rainfall days in September
Onquenha, Angola
  • Average rainfall days in September: 5.2 days

The month with the highest number of rainy days is March (26.7 days).
The months with the least rainy days are June and July (0.1 days).

Average daylight in September /
Average sunshine in September
Onquenha, Angola
  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).

  • Average sunshine in September: 10h and 5min

The month with the most sunshine is October (Average sunshine: 11h and 36min).
The month with the least sunshine is March (Average sunshine: 7h and 0min).

Average sunshine days in September
Onquenha, Angola
  • Average sunshine days in September: 23.7 days

The month with the most sunshine days is July (30.9 days).
The month with the least sunshine days is March (3.7 days).

Average UV index in September
Onquenha, Angola
  • Average UV index in September: 6

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

Average cloud cover in September
Onquenha, Angola
  • Average cloud cover in September: 9

The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are June and July (Cloud cover 2).

Average visibility in September
Onquenha, Angola
  • Average visibility in September: 10km

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

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