September weather forecast
Marimba, Angola

September, the first month of the spring in Marimba, is still a hot month, with an average temperature ranging between max 30.2°C (86.4°F) and min 18°C (64.4°F).

Temperature

Marimba marks the arrival of September with an average high-temperature of a still hot 30.2°C (86.4°F), hardly different from August's 31.3°C (88.3°F). Marimba, in September, displays a significant temperature downturn during the night, with an average reading of 18°C (64.4°F).

Heat index

September's mean heat index is computed to be a fiery hot 36°C (96.8°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Marimba, the average relative humidity in September is 70%.

Rainfall

In Marimba, during September, the rain falls for 24.6 days and regularly aggregates up to 82mm (3.23") of precipitation. Throughout the year, there are 261.7 rainfall days, and 1536mm (60.47") 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 05:53 and sunset at 17:50. On the last day of September, sunrise is at 05:36 and sunset at 17:47 WAT.

Sunshine

September has the most sunshine of the year, with an average of 8.6h of sunshine.

UV index

April through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.