September weather forecast
Chissaca, Angola

The first month of the spring, September, is also a hot month in Chissaca, Angola, with an average temperature ranging between max 31.5°C (88.7°F) and min 16.2°C (61.2°F).

Temperature

September registers as the month with the highest average temperatures, reaching 31.5°C (88.7°F) at its peak and 16.2°C (61.2°F) at the lowest.

Heat index

During September, the heat index is estimated at a sweltering 35°C (95°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In September, the average relative humidity in Chissaca, Angola, is 57%.

Rainfall

In Chissaca, Angola, in September, during 9.3 rainfall days, 25mm (0.98") of precipitation is typically accumulated. Throughout the year, in Chissaca, Angola, there are 198 rainfall days, and 1143mm (45") of precipitation is accumulated.

Daylight

In September, the average length of the day in Chissaca is 12h and 2min.
On the first day of September, sunrise is at 06:01 and sunset at 17:55. On the last day of the month, sunrise is at 05:42 and sunset at 17:54 WAT.

Sunshine

September has the most sunshine of the year, with an average of 9.4h of sunshine.

UV index

May, July through September, with an average maximum UV index of 6, are months with the highest UV index in Chissaca. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, a regular UV index of 6 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.