Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The arrival of September marks a slight shift to an average high-temperature of a still warm 27.9°C (82.2°F) from August's 27.2°C (81°F). Throughout September, the temperature falls to an average low of 20°C (68°F).Heat index
The average heat index in September is appraised at a hot 33°C (91.4°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
July through September, with an average relative humidity of 90%, are the most humid months in Nyanon.Rainfall
In Nyanon, during September, the rain falls for 29.1 days and regularly aggregates up to 183mm (7.2") of precipitation. Throughout the year, there are 264.5 rainfall days, and 1181mm (46.5") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 8min.On the first day of September in Nyanon, sunrise is at 06:10 and sunset at 18:21. On the last day of the month, sunrise is at 06:03 and sunset at 18:08 WAT.
Sunshine
In September, the average sunshine is 5.8h.UV index
June through September, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 5 in September translates into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Nyanon in September?
What is the most humid month?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September in Nyanon?
What is the month with the lowest UV index?
What is the UV index reading in September?
Average temperature in September
Nyanon, Cameroon
- Average high temperature in September: 27.9°C
The warmest month (with the highest average high temperature) is February (35.2°C).
The month with the lowest average high temperature is August (27.2°C).
- Average low temperature in September: 20°C
The month with the highest average low temperature is March (22.3°C).
The coldest months (with the lowest average low temperature) are July, August and September (20°C).
Average pressure in September
Nyanon, Cameroon
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is February (1010.5mbar).
Average wind speed in September
Nyanon, Cameroon
- Average wind speed in September: 4.8km/h
The windiest month (with the highest average wind speed) is March (6km/h).
The calmest month (with the lowest average wind speed) is November (3.9km/h).
Average humidity in September
Nyanon, Cameroon
- 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 (62%).
Average rainfall in September
Nyanon, Cameroon
- Average rainfall in September: 183mm
The wettest month (with the highest rainfall) is October (191mm).
The driest month (with the least rainfall) is January (5mm).
Average rainfall days in September
Nyanon, Cameroon
- Average rainfall days in September: 29.1 days
The months with the highest number of rainy days are August and October (30.2 days).
The month with the least rainy days is January (6.8 days).
Average daylight in September /
Average sunshine in September
Nyanon, Cameroon
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 5h and 5min
The month with the most sunshine is January (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 5h and 12min).
Average sunshine days in September
Nyanon, Cameroon
- Average sunshine days in September: 0.1 days
The month with the most sunshine days is January (18.3 days).
The months with the least sunshine days are August and September (0.1 days).
Average UV index in September
Nyanon, Cameroon
- Average UV index in September: 5
The months with the highest UV index are January, February, March and December (UV index 7).
The months with the lowest UV index are June, July, August and September (UV index 5).
Average cloud cover in September
Nyanon, Cameroon
- Average cloud cover in September: 77
The month with the most cloud cover is August (Cloud cover 80).
The months with the least cloud cover are January and December (Cloud cover 23).
Average visibility in September
Nyanon, Cameroon
- Average visibility in September: 5km
The months with the highest visibility are January, February, March and December (9km).
The months with the lowest visibility are July, August and September (5km).
