September weather forecast
Coquilo, Angola

The first month of the spring, September, is still a tropical month in Coquilo, Angola, with temperature in the range of an average high of 31.1°C (88°F) and an average low of 18.6°C (65.5°F).

Temperature

The average high-temperature in September, at a still tropical 31.1°C (88°F), reveals a modest deviation from August's 32.5°C (90.5°F). September presents a pronounced divergence from daily peak temperatures in Coquilo, with the average low-temperature of 18.6°C (65.5°F).

Heat index

Throughout September, the heat index is evaluated at a very hot 38°C (100.4°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The average relative humidity in September in Coquilo is 69%.

Rainfall

In September, the rain falls for 18.8 days. Throughout September, 51mm (2.01") of precipitation is accumulated. Throughout the year, there are 233.4 rainfall days, and 1395mm (54.92") of precipitation is accumulated.

Daylight

In Coquilo, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:59 and sunset at 17:58. On the last day of September, in Coquilo, Angola, sunrise is at 05:44 and sunset at 17:54 WAT.

Sunshine

With an average of 7.9h of sunshine, September has the most sunshine of the year.

UV index

The months with the highest UV index are April through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 6 during September translates into the following guidance:
Shield from overexposure. Defense against sun-related harm is required. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.