September weather forecast
Calonda, Angola

September, the first month of the spring in Calonda, is also a hot month, with an average temperature ranging between min 21.7°C (71.1°F) and max 33.7°C (92.7°F).

Temperature

September's advent denotes a minor fluctuation in the average high-temperature to a tropical 33.7°C (92.7°F) from August's 35.6°C (96.1°F). A sharp divergence from daytime highs is noted during the month of September, with the average nighttime temperature settling at an agreeable 21.7°C (71.1°F).

Heat index

In September, the average heat index is computed to be an extremely hot 41°C (105.8°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. 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.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

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

Rainfall

In Calonda, during September, the rain falls for 17.4 days and regularly aggregates up to 49mm (1.93") of precipitation. In Calonda, during the entire year, the rain falls for 235.5 days and collects up to 1228mm (48.35") of precipitation.

Daylight

In September, the average length of the day is 12h and 4min.
On the first day of September, sunrise is at 05:38 and sunset at 17:36. On the last day of the month, sunrise is at 05:22 and sunset at 17:32 WAT.

Sunshine

The average sunshine in September is 9.6h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.