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
Cisarua's September reports an average high-temperature of a still hot 31.3°C (88.3°F), exhibiting a minor difference from August. In September, the recorded average low-temperature is an agreeable 22.2°C (72°F).Heat index
During September, the heat index is appraised at a torrid 38°C (100.4°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.One should consider that heat index numbers are for shaded settings and light wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 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.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The least humid month is September, with an average relative humidity of 70%.Rainfall
September is the month with the least rainfall. Rain falls for 16.6 days and accumulates 65mm (2.56") of precipitation.Daylight
In Cisarua, Indonesia, the average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 05:52 and sunset at 17:51. On the last day of September, sunrise is at 05:37 and sunset at 17:46 WIB.
Sunshine
The average sunshine in September is 9.1h.UV index
The months with the highest UV index are February, April, May, July through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the least humid month in Cisarua?
What is the average humidity in September in Cisarua?
What is the driest month?
How many days does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What are the months with the highest UV index?
How high is the UV index in September?
Average temperature in September
Cisarua, Indonesia
- Average high temperature in September: 31.3°C
The warmest month (with the highest average high temperature) is October (31.5°C).
The month with the lowest average high temperature is January (28.8°C).
- Average low temperature in September: 22.2°C
The months with the highest average low temperature are October, November and December (23.5°C).
The coldest month (with the lowest average low temperature) is August (21.6°C).
Average pressure in September
Cisarua, Indonesia
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is September (1011.3mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).
Average wind speed in September
Cisarua, Indonesia
- Average wind speed in September: 5km/h
The windiest month (with the highest average wind speed) is January (7.9km/h).
The calmest month (with the lowest average wind speed) is July (4.9km/h).
Average humidity in September
Cisarua, Indonesia
- Average humidity in September: 70%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is September (70%).
Average rainfall in September
Cisarua, Indonesia
- Average rainfall in September: 65mm
The wettest month (with the highest rainfall) is March (268mm).
The driest month (with the least rainfall) is September (65mm).
Average rainfall days in September
Cisarua, Indonesia
- Average rainfall days in September: 16.6 days
The month with the highest number of rainy days is January (29.3 days).
The month with the least rainy days is August (16.5 days).
Average daylight in September /
Average sunshine in September
Cisarua, 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 1min
The month with the most sunshine is March (Average sunshine: 9h and 12min).
The month with the least sunshine is July (Average sunshine: 6h and 42min).
Average sunshine days in September
Cisarua, Indonesia
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is August (11.9 days).
The month with the least sunshine days is February (0.4 days).
Average UV index in September
Cisarua, Indonesia
- Average UV index in September: 7
The months with the highest UV index are February, April, May, July, August, September and October (UV index 7).
The months with the lowest UV index are January, March, June, November and December (UV index 6).
Average cloud cover in September
Cisarua, Indonesia
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Cisarua, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are June, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, July, November and December (9km).
