September weather forecastCilejit, Indonesia
September
Weather in September
The first month of the spring, September, is still a hot month in Cilejit, Indonesia, with temperature in the range of an average high of 30.7°C (87.3°F) and an average low of 25.2°C (77.4°F).Temperature
Cilejit transitions into September recording an average high-temperature of a still hot 30.7°C (87.3°F), closely aligning with the preceding month's temperature. Cilejit throughout September, records an average low-temperature of 25.2°C (77.4°F).Heat index
The heat index value during September is computed to be a sweltering 37°C (98.6°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
September and October, with an average relative humidity of 69%, are the least humid months in Cilejit.Rainfall
In Cilejit, in September, it is raining for 17 days, with typically 56mm (2.2") of accumulated precipitation. Throughout the year, there are 283.6 rainfall days, and 1323mm (52.09") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:54 and sunset at 17:53. On the last day of the month, sunrise is at 05:39 and sunset at 17:48 WIB.
Sunshine
In September, the average sunshine in Cilejit, Indonesia, is 9.7h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Cilejit. The months with the lowest UV index in Cilejit, Indonesia, are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 7 during September translates into the following directions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cilejit, Indonesia
- Average high temperature in September: 30.7°C
The warmest month (with the highest average high temperature) is October (31.3°C).
The month with the lowest average high temperature is January (29.6°C).
- Average low temperature in September: 25.2°C
The months with the highest average low temperature are October and November (26.5°C).
The coldest month (with the lowest average low temperature) is July (24.9°C).
Average pressure in September
Cilejit, Indonesia
- Average pressure in September: 1011.1mbar
The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in September
Cilejit, Indonesia
- Average wind speed in September: 8.6km/h
The windiest month (with the highest average wind speed) is January (12.6km/h).
The calmest month (with the lowest average wind speed) is September (8.6km/h).
Average humidity in September
Cilejit, Indonesia
- Average humidity in September: 69%
The months with the highest relative humidity are February and March (76%).
The months with the lowest relative humidity are September and October (69%).
Average rainfall in September
Cilejit, Indonesia
- Average rainfall in September: 56mm
The wettest month (with the highest rainfall) is February (162mm).
The driest month (with the least rainfall) is August (49mm).
Average rainfall days in September
Cilejit, Indonesia
- Average rainfall days in September: 17 days
The month with the highest number of rainy days is March (28.1 days).
The month with the least rainy days is August (15.3 days).
Average daylight in September /
Average sunshine in September
Cilejit, Indonesia
- Average daylight in September: 12h and 6min
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 48min).
- Average sunshine in September: 9h and 42min
The month with the most sunshine is March (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 7h and 12min).
Average sunshine days in September
Cilejit, Indonesia
- Average sunshine days in September: 8.6 days
The month with the most sunshine days is August (10.5 days).
The month with the least sunshine days is March (1.8 days).
Average UV index in September
Cilejit, 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
Cilejit, Indonesia
- Average cloud cover in September: 22
The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are August and September (Cloud cover 22).
Average visibility in September
Cilejit, 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).





