September weather forecast
Nikki, Benin

September sees the transition from the rainy season to the dry season. The weather exhibits a shift in patterns from those in August, with a significant fall in the rainfall and humidity levels. There is a slight increase in the average wind speed, brushing off the excess humidity from the previous months. The cloud cover begins to thin out, marking the end of the peak rainy season. This transition makes September the perfect time to experience Nikki's unique blend of climates.

Temperature

September's arrival registers an average high-temperature of a still warm 29.4°C (84.9°F), closely aligning with the temperature of the previous month. Throughout the month of September, the average temperature in Nikki, Benin, dips to a pleasant 21.9°C (71.4°F) at night.

Heat index

September's average heat index is estimated at a very hot 37°C (98.6°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Nikki, the average relative humidity in September is 85%.

Rainfall

In Nikki, Benin, in September, during 23.5 rainfall days, 100mm (3.94") of precipitation is typically accumulated. In Nikki, during the entire year, the rain falls for 139.7 days and collects up to 607mm (23.9") of precipitation.

Daylight

The average length of the day in September in Nikki is 12h and 11min.
On the first day of the month, sunrise is at 06:37 and sunset at 18:56. On the last day of September, in Nikki, sunrise is at 06:35 and sunset at 18:38 WAT.

Sunshine

In Nikki, the average sunshine in September is 7.4h.

UV index

In September, the average daily maximum UV index in Nikki is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.