September weather forecast
Illo, Nigeria

September, the first month of the autumn in Illo, is still a tropical month, with temperature in the range of an average high of 33.9°C (93°F) and an average low of 24.1°C (75.4°F).

Temperature

At the onset of September, Illo records an average high-temperature of a still tropical 33.9°C (93°F), showing little deviation from the preceding month. An average minimum temperature of 24.1°C (75.4°F) marks the month of September in Illo, Nigeria.

Heat index

For September, the heat index is estimated at a blazing hot 45°C (113°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
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 influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In September, the average relative humidity in Illo is 67%.

Rainfall

In Illo, in September, during 12.4 rainfall days, 37mm (1.46") of precipitation is typically accumulated. In Illo, during the entire year, the rain falls for 74.4 days and collects up to 291mm (11.46") of precipitation.

Daylight

In September, the average length of the day in Illo is 12h and 11min.
On the first day of September, sunrise is at 06:34 and sunset at 18:55. On the last day of the month, sunrise is at 06:34 and sunset at 18:35 WAT.

Sunshine

In Illo, Nigeria, the average sunshine in September is 9.2h.

UV index

In September, the average daily maximum UV index in Illo is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.