September weather forecast
Nnobi, Nigeria

September, the first month of the autumn in Nnobi, is also a moderately hot month, with an average temperature ranging between min 22.6°C (72.7°F) and max 29°C (84.2°F).

Temperature

Nnobi's weather in September indicates an average high-temperature of a still warm 29°C (84.2°F), nearly consistent with the 28.5°C (83.3°F) of August. Nighttime temperature in Nnobi, Nigeria, lowers to an average of 22.6°C (72.7°F) in September.

Heat index

The heat index value during September is estimated at a sweltering 37°C (98.6°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Consider that heat index readings are for situations in the shade and light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

July through September, with an average relative humidity of 88%, are the most humid months.

Rainfall

In September, in Nnobi, the rain falls for 28.3 days. Throughout September, 209mm (8.23") of precipitation is accumulated. Throughout the year, in Nnobi, there are 253.1 rainfall days, and 1279mm (50.35") of precipitation is accumulated.

Daylight

In September, the average length of the day in Nnobi is 12h and 9min.
On the first day of the month, sunrise is at 06:25 and sunset at 18:38. On the last day of September, in Nnobi, sunrise is at 06:19 and sunset at 18:24 WAT.

Sunshine

In Nnobi, the average sunshine in September is 5.8h.

UV index

June through September, with an average maximum UV index of 6, are months with the lowest UV index in Nnobi. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 6 in September translates into this advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.