September weather forecast
Calépi, Angola

September

Weather in September

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

Temperature

September, with its average high-temperature of 29.6°C (85.3°F) and an average low-temperature of 13.7°C (56.7°F), holds the record as the warmest month.

Heat index

The heat index value during September is evaluated at a hot 30°C (86°F). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

The average relative humidity in September is 48%.

Rainfall

In Calépi, during September, the rain falls for 5.2 days and regularly aggregates up to 22mm (0.87") of precipitation. In Calépi, during the entire year, the rain falls for 170.5 days and collects up to 1898mm (74.72") of precipitation.

Daylight

The average length of the day in September is 12h and 2min.
On the first day of September in Calépi, sunrise is at 06:06 and sunset at 17:57. On the last day of the month, sunrise is at 05:45 and sunset at 17:58 WAT.

Sunshine

In September, the average sunshine in Calépi, Angola, is 10.9h.

UV index

The months with the highest UV index in Calépi are August and September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

What time of the year is the hottest in Calépi?
September brings the highest temperatures, with an average high of 29.6°C (85.3°F) and an average low of 13.7°C (56.7°F).
How hot is it in Calépi in September?
The high-temperature, in September, in Calépi, records 29.6°C (85.3°F), while the low-temperature is 13.7°C (56.7°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 30°C (86°F).
What is the average humidity in September in Calépi?
In Calépi, the average relative humidity in September is 48%.
How much does it rain in Calépi in September?
In Calépi, in September, during 5.2 rainfall days, 22mm (0.87") of precipitation is typically accumulated.
How many hours of daylight does Calépi have in September?
The average day length in September in Calépi is 12h and 2min.
When is the sunrise / sunset in September in Calépi?
In September, on the first day of the month, sunrise is at 06:06 and sunset at 17:57. On the last day of the month, in Calépi, Angola, sunrise is at 05:45 and sunset at 17:58 WAT.
How long on average sun shines in September in Calépi?
In September, the average sunshine duration is 10.9h.
When is the highest UV index in Calépi?
August and September, with an average maximum UV index of 6, are months with the highest UV index in Calépi.
What is the UV index intensity in September in Calépi?
The average daily maximum UV index in September in Calépi, Angola, is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Calépi, 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
Calépi, 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
Calépi, 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
Calépi, 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
Calépi, 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
Calépi, 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
Calépi, Angola
  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 18min).

  • 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
Calépi, 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
Calépi, 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
Calépi, 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
Calépi, 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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