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 transition into September is marked with an average high-temperature of a still tropical 33.3°C (91.9°F), showing an insignificant shift from August's 32.7°C (90.9°F). Throughout September, the temperature tends to fall to a consistent average low of 22.5°C (72.5°F).Heat index
Throughout September, the heat index is computed to be a blisteringly hot 41°C (105.8°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
The least humid month is September, with an average relative humidity of 63%.Rainfall
In Cibeunying, in September, it is raining for 5.8 days, with typically 7mm (0.28") of accumulated precipitation. Throughout the year, there are 139.1 rainfall days, and 518mm (20.39") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 4min.On the first day of September, sunrise is at 05:49 and sunset at 17:48. On the last day of the month, sunrise is at 05:34 and sunset at 17:44 WIB.
Sunshine
The average sunshine in September is 9.5h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the least humid month?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September in Cibeunying?
When are sunrise and sunset in September?
How many hours of sunshine does Cibeunying have in September?
When is the highest UV index?
When is the lowest UV index?
What is the UV index reading in September?
Average temperature in September
Cibeunying, Indonesia
- Average high temperature in September: 33.3°C
The warmest month (with the highest average high temperature) is October (33.4°C).
The month with the lowest average high temperature is February (29.8°C).
- Average low temperature in September: 22.5°C
The month with the highest average low temperature is November (24.7°C).
The coldest month (with the lowest average low temperature) is July (21.3°C).
Average pressure in September
Cibeunying, Indonesia
- Average pressure in September: 1011.2mbar
The month with the highest atmospheric pressure is September (1011.2mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in September
Cibeunying, Indonesia
- Average wind speed in September: 8.2km/h
The windiest month (with the highest average wind speed) is January (8.6km/h).
The calmest months (with the lowest average wind speed) are April and November (6km/h).
Average humidity in September
Cibeunying, Indonesia
- Average humidity in September: 63%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is September (63%).
Average rainfall in September
Cibeunying, Indonesia
- Average rainfall in September: 7mm
The wettest months (with the highest rainfall) are February and March (90mm).
The driest month (with the least rainfall) is August (4mm).
Average rainfall days in September
Cibeunying, Indonesia
- Average rainfall days in September: 5.8 days
The months with the highest number of rainy days are March and December (18.1 days).
The month with the least rainy days is August (2.6 days).
Average daylight in September /
Average sunshine in September
Cibeunying, Indonesia
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is February (Average sunshine: 9h and 42min).
The month with the least sunshine is July (Average sunshine: 7h and 24min).
Average sunshine days in September
Cibeunying, Indonesia
- Average sunshine days in September: 23.6 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is February (7.4 days).
Average UV index in September
Cibeunying, Indonesia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Cibeunying, Indonesia
- Average cloud cover in September: 21
The months with the most cloud cover are January and February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Cibeunying, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
