September weather forecastJongaya, Indonesia
September
Weather in September
The first month of the spring, September, is still a tropical month in Jongaya, Indonesia, with an average temperature fluctuating between 23.3°C (73.9°F) and 31.4°C (88.5°F).Temperature
Jongaya records an average high-temperature of a still hot 31.4°C (88.5°F) in September, closely mirroring the climate of the previous month. During the month of September, Jongaya experiences a steady low-temperature average of 23.3°C (73.9°F).Heat index
The heat index for September is estimated at a torrid 38°C (100.4°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In September, the average relative humidity is 67%.Rainfall
The month with the least rainfall is September, when the rain falls for 5.4 days and typically collects 9mm (0.35") of precipitation.Daylight
In Jongaya, the average length of the day in September is 12h and 5min.On the first day of September, sunrise is at 06:01 and sunset at 18:02. On the last day of the month, sunrise is at 05:47 and sunset at 17:56 WITA.
Sunshine
In September, the average sunshine is 10h.UV index
The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 7 during September morphs into the following directions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jongaya, Indonesia
- Average high temperature in September: 31.4°C
The warmest month (with the highest average high temperature) is October (32.2°C).
The month with the lowest average high temperature is January (29.1°C).
- Average low temperature in September: 23.3°C
The month with the highest average low temperature is November (25.5°C).
The coldest month (with the lowest average low temperature) is August (23°C).
Average pressure in September
Jongaya, Indonesia
- Average pressure in September: 1010.6mbar
The month with the highest atmospheric pressure is August (1010.8mbar).
The month with the lowest atmospheric pressure is December (1008.3mbar).
Average wind speed in September
Jongaya, Indonesia
- Average wind speed in September: 8.1km/h
The windiest month (with the highest average wind speed) is January (8.7km/h).
The calmest month (with the lowest average wind speed) is May (6.1km/h).
Average humidity in September
Jongaya, Indonesia
- Average humidity in September: 67%
The months with the highest relative humidity are April and May (79%).
The month with the lowest relative humidity is October (66%).
Average rainfall in September
Jongaya, Indonesia
- Average rainfall in September: 9mm
The wettest month (with the highest rainfall) is January (159mm).
The driest month (with the least rainfall) is September (9mm).
Average rainfall days in September
Jongaya, Indonesia
- Average rainfall days in September: 5.4 days
The month with the highest number of rainy days is March (23.8 days).
The month with the least rainy days is August (4.9 days).
Average daylight in September /
Average sunshine in September
Jongaya, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is December (Average sunshine: 10h and 6min).
The month with the least sunshine is May (Average sunshine: 6h and 48min).
Average sunshine days in September
Jongaya, Indonesia
- Average sunshine days in September: 24.4 days
The month with the most sunshine days is August (25.1 days).
The month with the least sunshine days is March (4.1 days).
Average UV index in September
Jongaya, Indonesia
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in September
Jongaya, Indonesia
- Average cloud cover in September: 15
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in September
Jongaya, 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).





