September weather forecast
Capaia, Angola

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

Temperature

The transition from August to September sees an average high-temperature of a tropical 33.7°C (92.7°F), indicating a minor variance from the prior month. Capaia registers a marked temperature plunge to an agreeable 21.7°C (71.1°F) during the cool September nights.

Heat index

The average heat index in September is computed to be a blisteringly hot 41°C (105.8°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. 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 of high significance for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Capaia, Angola, the average relative humidity in September is 59%.

Rainfall

In Capaia, in September, during 17.4 rainfall days, 49mm (1.93") of precipitation is typically accumulated. Throughout the year, in Capaia, there are 235.5 rainfall days, and 1228mm (48.35") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:40 and sunset at 17:37. On the last day of September, in Capaia, sunrise is at 05:23 and sunset at 17:34 WAT.

Sunshine

In Capaia, Angola, the average sunshine in September is 9.6h.

UV index

The months with the highest UV index in Capaia, Angola, are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Fend off overexposure. Sun protection is vital. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Tightly woven clothing, when worn loosely, shields effectively against the Sun.