September weather forecast
Calandala, Angola

September, the first month of the spring in Calandala, is also a hot month, with an average temperature varying between 33.3°C (91.9°F) and 19.8°C (67.6°F).

Temperature

September's average high-temperature stands at a still tropical 33.3°C (91.9°F), showing little deviation from August's 33.8°C (92.8°F). Despite a significant daily temperature range, Calandala's temperature falls to a steady low-temperature average of 19.8°C (67.6°F) in September.

Heat index

The heat index in September is calculated to be a sweltering 36°C (96.8°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In September, the average relative humidity is 46%.

Rainfall

In Calandala, in September, during 10 rainfall days, 20mm (0.79") of precipitation is typically accumulated. Throughout the year, there are 210.3 rainfall days, and 1215mm (47.83") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 4min.
On the first day of September, sunrise is at 05:49 and sunset at 17:46. On the last day of the month, sunrise is at 05:32 and sunset at 17:43 WAT.

Sunshine

In September, the average sunshine is 9.8h.

UV index

The months with the highest UV index are August and September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during September translates into the following guidance:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.