September weather forecastOlose, Nigeria
September
Weather in September
September, the first month of the autumn in Olose, is also a moderately hot month, with an average temperature fluctuating between 29.9°C (85.8°F) and 22.4°C (72.3°F).Temperature
September commences with an average high-temperature of a still warm 29.9°C (85.8°F), showing little deviation from August's 28.9°C (84°F). Throughout the month of September, the average temperature dips to an agreeable 22.4°C (72.3°F) at night.Heat index
For September, the heat index is calculated to be a torrid 39°C (102.2°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.Consider that heat index readings are for situations in the shade and light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 86%.Rainfall
In Olose, in September, it is raining for 27.8 days, with typically 126mm (4.96") of accumulated precipitation. In Olose, during the entire year, the rain falls for 230.2 days and collects up to 823mm (32.4") of precipitation.Daylight
In Olose, the average length of the day in September is 12h and 10min.On the first day of September, sunrise is at 06:39 and sunset at 18:54. On the last day of the month, sunrise is at 06:35 and sunset at 18:39 WAT.
Sunshine
In September, the average sunshine is 6h.UV index
June through September, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 during September translates into the following guidance:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Olose, Nigeria
- Average high temperature in September: 29.9°C
The warmest months (with the highest average high temperature) are January and February (37.3°C).
The month with the lowest average high temperature is August (28.9°C).
- Average low temperature in September: 22.4°C
The month with the highest average low temperature is March (25.3°C).
The coldest month (with the lowest average low temperature) is August (21.8°C).
Average pressure in September
Olose, Nigeria
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is July (1013.3mbar).
The month with the lowest atmospheric pressure is March (1009.3mbar).
Average wind speed in September
Olose, Nigeria
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest months (with the lowest average wind speed) are November and December (5.6km/h).
Average humidity in September
Olose, Nigeria
- Average humidity in September: 86%
The months with the highest relative humidity are August and September (86%).
The month with the lowest relative humidity is January (49%).
Average rainfall in September
Olose, Nigeria
- Average rainfall in September: 126mm
The wettest month (with the highest rainfall) is July (148mm).
The driest month (with the least rainfall) is December (2mm).
Average rainfall days in September
Olose, Nigeria
- Average rainfall days in September: 27.8 days
The month with the highest number of rainy days is August (29.2 days).
The month with the least rainy days is December (2.5 days).
Average daylight in September /
Average sunshine in September
Olose, 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 42min).
- Average sunshine in September: 6h and 0min
The month with the most sunshine is December (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 4h and 42min).
Average sunshine days in September
Olose, Nigeria
- Average sunshine days in September: 1.2 days
The month with the most sunshine days is December (26.3 days).
The month with the least sunshine days is August (1 days).
Average UV index in September
Olose, Nigeria
- Average UV index in September: 6
The month with the highest UV index is February (UV index 8).
The months with the lowest UV index are June, July, August and September (UV index 6).
Average cloud cover in September
Olose, Nigeria
- Average cloud cover in September: 64
The month with the most cloud cover is August (Cloud cover 71).
The month with the least cloud cover is December (Cloud cover 13).
Average visibility in September
Olose, Nigeria
- Average visibility in September: 7km
The months with the highest visibility are February, March, April and December (10km).
The months with the lowest visibility are July, August and September (7km).





