September weather forecast
Koko, Benin

The first month of the autumn, September, is also a moderately hot month in Koko, Benin, with temperature in the range of an average low of 21.3°C (70.3°F) and an average high of 29.5°C (85.1°F).

Temperature

Upon the onset of September, Koko witnesses an average high-temperature of a still moderately hot 29.5°C (85.1°F), showing a close resemblance to the prior month. Throughout September, the average low-temperature in Koko dips to a pleasant 21.3°C (70.3°F).

Heat index

September's heat index is evaluated at a sweltering 38°C (100.4°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Consider that heat index readings are for situations in the shade and light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The average relative humidity in September is 86%.

Rainfall

In Koko, in September, it is raining for 26.7 days, with typically 138mm (5.43") of accumulated precipitation. Throughout the year, in Koko, there are 180.8 rainfall days, and 831mm (32.72") of precipitation is accumulated.

Daylight

In Koko, Benin, the average length of the day in September is 12h and 10min.
On the first day of September in Koko, sunrise is at 06:44 and sunset at 19:00. On the last day of the month, sunrise is at 06:40 and sunset at 18:44 WAT.

Sunshine

In September, the average sunshine in Koko is 7h.

UV index

In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 7 during September morphs into the following directions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. Boost your sun resistance with garments that are densely woven yet spacious.