September weather forecastOnuba, Nigeria
September
Weather in September
September, the first month of the autumn in Onuba, is also a moderately hot month, with an average temperature varying between 28.4°C (83.1°F) and 22.3°C (72.1°F).Temperature
With the onset of September, the average high-temperature stands at a still moderately hot 28.4°C (83.1°F), closely aligned with August's 27.8°C (82°F). In Onuba, the average nighttime temperature during September is an agreeable 22.3°C (72.1°F).Heat index
September's average heat index is estimated at a fiery hot 35°C (95°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
The months with the highest humidity are July through September, with an average relative humidity of 88%.Rainfall
In Onuba, in September, it is raining for 26.4 days, with typically 162mm (6.38") of accumulated precipitation. In Onuba, during the entire year, the rain falls for 201.2 days and collects up to 1012mm (39.84") of precipitation.Daylight
The average length of the day in September is 12h and 10min.On the first day of September, sunrise is at 06:22 and sunset at 18:36. On the last day of the month, sunrise is at 06:17 and sunset at 18:21 WAT.
Sunshine
In September, the average sunshine is 5.4h.UV index
The average daily maximum UV index in September in Onuba is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 6 in September suggests the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Onuba, Nigeria
- Average high temperature in September: 28.4°C
The warmest month (with the highest average high temperature) is February (35.9°C).
The month with the lowest average high temperature is August (27.8°C).
- Average low temperature in September: 22.3°C
The month with the highest average low temperature is March (25.6°C).
The coldest month (with the lowest average low temperature) is August (21.8°C).
Average pressure in September
Onuba, Nigeria
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is March (1008.9mbar).
Average wind speed in September
Onuba, Nigeria
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is March (11km/h).
The calmest month (with the lowest average wind speed) is November (6.7km/h).
Average humidity in September
Onuba, Nigeria
- Average humidity in September: 88%
The months with the highest relative humidity are July, August and September (88%).
The month with the lowest relative humidity is January (42%).
Average rainfall in September
Onuba, Nigeria
- Average rainfall in September: 162mm
The wettest month (with the highest rainfall) is July (186mm).
The driest month (with the least rainfall) is December (2mm).
Average rainfall days in September
Onuba, Nigeria
- Average rainfall days in September: 26.4 days
The month with the highest number of rainy days is August (28 days).
The month with the least rainy days is December (2.6 days).
Average daylight in September /
Average sunshine in September
Onuba, Nigeria
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in September: 5h and 24min
The months with the most sunshine are January and December (Average sunshine: 9h and 48min).
The month with the least sunshine is August (Average sunshine: 4h and 48min).
Average sunshine days in September
Onuba, Nigeria
- Average sunshine days in September: 2.2 days
The month with the most sunshine days is December (28 days).
The months with the least sunshine days are July and September (2.2 days).
Average UV index in September
Onuba, Nigeria
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is August (UV index 5).
Average cloud cover in September
Onuba, Nigeria
- Average cloud cover in September: 70
The month with the most cloud cover is August (Cloud cover 75).
The month with the least cloud cover is December (Cloud cover 11).
Average visibility in September
Onuba, Nigeria
- Average visibility in September: 6km
The months with the highest visibility are January, February, March, April and December (10km).
The month with the lowest visibility is September (6km).





