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
Weather in September
Temperature
With the transition into September, Diéla Vievi notes an average high-temperature of a warm 29.3°C (84.7°F), closely resembling August. The mean low-temperature during September nights is an agreeable 21.2°C (70.2°F).Heat index
In September, the average heat index is estimated at a torrid 35°C (95°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in September is 77%.Rainfall
In Diéla Vievi, in September, it is raining for 18.1 days, with typically 44mm (1.73") of accumulated precipitation. In Diéla Vievi, during the entire year, the rain falls for 274.1 days and collects up to 1640mm (64.57") of precipitation.Daylight
The average length of the day in September in Diéla Vievi is 12h and 6min.On the first day of the month, sunrise is at 06:17 and sunset at 18:21. On the last day of September, sunrise is at 06:05 and sunset at 18:13 WAT.
Sunshine
In September, the average sunshine in Diéla Vievi is 4.9h.UV index
January through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
Is it hot in Diéla Vievi during September?
What is the average humidity in September in Diéla Vievi?
How many days does it rain in September in Diéla Vievi?
How many hours of daylight does Diéla Vievi have in September?
When is the sunrise / sunset in September in Diéla Vievi?
How many hours of sunshine does Diéla Vievi have in September?
What are the months with the highest UV index in Diéla Vievi?
What is the UV index intensity in September in Diéla Vievi?
Average temperature in September
Diéla Vievi, Gabon
- Average high temperature in September: 29.3°C
The warmest month (with the highest average high temperature) is March (30.6°C).
The month with the lowest average high temperature is November (28.3°C).
- Average low temperature in September: 21.2°C
The month with the highest average low temperature is March (21.9°C).
The coldest month (with the lowest average low temperature) is July (18.6°C).
Average pressure in September
Diéla Vievi, Gabon
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is July (1014.4mbar).
The months with the lowest atmospheric pressure are February and March (1010.3mbar).
Average wind speed in September
Diéla Vievi, Gabon
- Average wind speed in September: 6.1km/h
The windiest month (with the highest average wind speed) is August (6.5km/h).
The calmest months (with the lowest average wind speed) are January and December (4km/h).
Average humidity in September
Diéla Vievi, Gabon
- Average humidity in September: 77%
The month with the highest relative humidity is November (91%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Diéla Vievi, Gabon
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is November (267mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days in September
Diéla Vievi, Gabon
- Average rainfall days in September: 18.1 days
The month with the highest number of rainy days is December (30.2 days).
The month with the least rainy days is July (6.3 days).
Average daylight in September /
Average sunshine in September
Diéla Vievi, Gabon
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in September: 4h and 5min
The month with the most sunshine is July (Average sunshine: 7h and 18min).
The month with the least sunshine is October (Average sunshine: 4h and 42min).
Average sunshine days in September
Diéla Vievi, Gabon
- Average sunshine days in September: 6.9 days
The month with the most sunshine days is July (20.7 days).
The months with the least sunshine days are November and December (0.5 days).
Average UV index in September
Diéla Vievi, Gabon
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, August and September (UV index 6).
The months with the lowest UV index are October, November and December (UV index 5).
Average cloud cover in September
Diéla Vievi, Gabon
- Average cloud cover in September: 70
The month with the most cloud cover is October (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 50).
Average visibility in September
Diéla Vievi, Gabon
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is November (5km).
Diéla Vievi, Gabon
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