September weather forecast
Adjarra, Benin

The first month of the autumn, September, is still a warm month in Adjarra, Benin, with an average temperature fluctuating between 29.3°C (84.7°F) and 23.8°C (74.8°F).

Temperature

In September, Adjarra experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 28.7°C (83.7°F) in August to a still warm 29.3°C (84.7°F). Adjarra experiences an average temperature drop to a still warm 23.8°C (74.8°F) during September nights.

Heat index

During September, the heat index is evaluated at a very hot 36°C (96.8°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The months with the highest humidity are July through September, with an average relative humidity of 81%.

Rainfall

In Adjarra, in September, during 19.8 rainfall days, 79mm (3.11") of precipitation is typically accumulated. In Adjarra, during the entire year, the rain falls for 149.3 days and collects up to 496mm (19.53") of precipitation.

Daylight

In September, the average length of the day is 12h and 10min.
On the first day of the month, sunrise is at 06:42 and sunset at 18:56. On the last day of September, sunrise is at 06:37 and sunset at 18:41 WAT.

Sunshine

The average sunshine in September is 6.1h.

UV index

The months with the lowest UV index are June, July and September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 6 in September translates into these instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.