September weather forecastIlesa, Nigeria

September

Weather in September

September in Ilesa serves as a turning point, gradually shaking off the persistent wetness that has characterized the previous months. Despite the high rainfall, small increments in sunshine hours are observable, hinting at the upcoming drier season. The gusty winds accompany a steady yet significant decrease in temperatures. However, this month's weather extremes lie in its record rainfall amounting to 132mm (5.2"). This broad spectrum of weather patterns, from increased rainfall to promising sunshine hours, signals the beginning of the transition from the rainy to the dry season.

Temperature

An average high-temperature of a still moderately hot 28.7°C (83.7°F) marks September in Ilesa, Nigeria, exhibiting a close resemblance to the conditions in August. September is noted for a mean low-temperature of 21°C (69.8°F).

Heat index

The average heat index in September is evaluated at a fiery hot 36°C (96.8°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. 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. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The months with the highest humidity are July through September, with an average relative humidity of 90%.

Rainfall

September is the month with the most rainfall. Rain falls for 26 days and accumulates 132mm (5.2") of precipitation.

Daylight

In September, the average length of the day in Ilesa is 12h and 10min.
On the first day of the month, sunrise is at 06:33 and sunset at 18:48. On the last day of September, in Ilesa, sunrise is at 06:29 and sunset at 18:32 WAT.

Sunshine

In Ilesa, the average sunshine in September is 5.2h.

UV index

The average daily maximum UV index in September in Ilesa is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 in September translates into this advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

In September, the average high-temperature and low-temperature in Ilesa, Nigeria, are 28.7°C (83.7°F) and 21°C (69.8°F) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in September is evaluated at 36°C (96.8°F).

July through September, with an average relative humidity of 90%, are most humid months.

In September, the average relative humidity in Ilesa is 90%.

September is the month with the most rainfall. Rain falls for 26 days and accumulates 132mm (5.2") of precipitation.

In September, in Ilesa, Nigeria, the rain falls for 26 days. Throughout September, 132mm (5.2") of precipitation is accumulated.

In September, the average day length in Ilesa is 12h and 10min.

On the first day of September in Ilesa, sunrise is at 06:33 and sunset at 18:48. On the last day of the month, sunrise is at 06:29 and sunset at 18:32 WAT.

The average sunshine duration in September is 5.2h.

In September, the average daily maximum UV index in Ilesa is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Ilesa, Nigeria

  • Average high temperature in September: 28.7°C

The warmest month (with the highest average high temperature) is February (36.8°C).
The month with the lowest average high temperature is August (27.8°C).

  • Average low temperature in September: 21°C

The month with the highest average low temperature is March (23.1°C).
The coldest month (with the lowest average low temperature) is January (20.1°C).

Average pressure in September
Ilesa, Nigeria

  • Average pressure in September: 1012.4mbar

The month with the highest atmospheric pressure is July (1013.1mbar).
The month with the lowest atmospheric pressure is March (1009mbar).

Average wind speed in September
Ilesa, Nigeria

  • Average wind speed in September: 5km/h

The windiest months (with the highest average wind speed) are March and April (6.4km/h).
The calmest month (with the lowest average wind speed) is November (3.9km/h).

Average humidity in September
Ilesa, Nigeria

  • Average humidity in September: 90%

The months with the highest relative humidity are July, August and September (90%).
The month with the lowest relative humidity is January (46%).

Average rainfall in September
Ilesa, Nigeria

  • Average rainfall in September: 132mm

The wettest month (with the highest rainfall) is September (132mm).
The driest month (with the least rainfall) is December (2mm).

Average rainfall days in September
Ilesa, Nigeria

  • Average rainfall days in September: 26 days

The month with the highest number of rainy days is July (27.1 days).
The month with the least rainy days is December (2 days).

Average daylight in September /
Average sunshine in September
Ilesa, Nigeria

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in September: 5h and 12min

The months with the most sunshine are January and December (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 4h and 18min).

Average sunshine days in September
Ilesa, Nigeria

  • Average sunshine days in September: 3.2 days

The month with the most sunshine days is December (27.3 days).
The month with the least sunshine days is July (2.6 days).

Average UV index in September
Ilesa, Nigeria

  • Average UV index in September: 6

The months with the highest UV index are January, February, March, April, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 5).

Average cloud cover in September
Ilesa, Nigeria

  • Average cloud cover in September: 78

The month with the most cloud cover is August (Cloud cover 82).
The month with the least cloud cover is December (Cloud cover 13).

Average visibility in September
Ilesa, Nigeria

  • Average visibility in September: 5km

The months with the highest visibility are January, February and December (9km).
The months with the lowest visibility are July, August, September and October (5km).