September weather forecast
Andrada, Angola

September

Weather in September

September, the first month of the spring in Andrada, is still a tropical month, with an average temperature varying between 33.7°C (92.7°F) and 21.7°C (71.1°F).

Temperature

Andrada's shift into September sets the average high-temperature at a hot 33.7°C (92.7°F), a figure that deviates only slightly from August's 35.6°C (96.1°F). Andrada, in September, displays a significant temperature downturn during the night, with an average reading of 21.7°C (71.1°F).

Heat index

For September, the heat index is calculated to be an extremely hot 41°C (105.8°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

The average relative humidity in September is 59%.

Rainfall

In September, the rain falls for 17.4 days. Throughout September, 49mm (1.93") of precipitation is accumulated. Throughout the year, there are 235.5 rainfall days, and 1228mm (48.35") of precipitation is accumulated.

Daylight

In Andrada, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:35 and sunset at 17:33. On the last day of September, sunrise is at 05:19 and sunset at 17:29 WAT.

Sunshine

In September, the average sunshine is 9.6h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Andrada. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.

Frequently asked questions

How hot is it in Andrada in September?
In September, the average high-temperature and low-temperature are 33.7°C (92.7°F) and 21.7°C (71.1°F) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 41°C (105.8°F).
What is the average humidity in September in Andrada?
In Andrada, the average relative humidity in September is 59%.
How much does it rain in September?
In Andrada, in September, during 17.4 rainfall days, 49mm (1.93") of precipitation is typically accumulated.
What is the average length of the day in September?
In September, the average day length is 12h and 4min.
What time are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 05:35 and sunset at 17:33. On the last day of the month, in Andrada, sunrise is at 05:19 and sunset at 17:29 WAT.
How long on average sun shines in September?
The average sunshine duration in September is 9.6h.
What is the month with the highest UV index?
The months with the highest UV index are May through September, with an average maximum UV index of 7.
How high is the UV index in September?
In Andrada, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents 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
Andrada, Angola
  • Average high temperature in September: 33.7°C

The warmest month (with the highest average high temperature) is August (35.6°C).
The month with the lowest average high temperature is December (27.2°C).

  • Average low temperature in September: 21.7°C

The month with the highest average low temperature is September (21.7°C).
The coldest month (with the lowest average low temperature) is June (19.1°C).

Average pressure in September
Andrada, Angola
  • Average pressure in September: 1011.1mbar

The month with the highest atmospheric pressure is June (1013.4mbar).
The months with the lowest atmospheric pressure are February and October (1010.6mbar).

Average wind speed in September
Andrada, Angola
  • Average wind speed in September: 5.5km/h

The windiest months (with the highest average wind speed) are June and July (7km/h).
The calmest months (with the lowest average wind speed) are March and December (4.6km/h).

Average humidity in September
Andrada, Angola
  • Average humidity in September: 59%

The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is July (30%).

Average rainfall in September
Andrada, Angola
  • Average rainfall in September: 49mm

The wettest month (with the highest rainfall) is November (199mm).
The driest month (with the least rainfall) is July (1mm).

Average rainfall days in September
Andrada, Angola
  • Average rainfall days in September: 17.4 days

The month with the highest number of rainy days is December (30.4 days).
The month with the least rainy days is July (1.5 days).

Average daylight in September /
Average sunshine in September
Andrada, Angola
  • Average daylight in September: 12h and 1min

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in September
Andrada, Angola
  • Average sunshine days in September: 9.1 days

The month with the most sunshine days is July (28.7 days).
The month with the least sunshine days is December (0.4 days).

Average UV index in September
Andrada, Angola
  • Average UV index in September: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is November (UV index 5).

Average cloud cover in September
Andrada, Angola
  • Average cloud cover in September: 23

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 8).

Average visibility in September
Andrada, 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 November and December (7km).

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