September weather forecastBoncong, Indonesia
September
Weather in September
September, the first month of the spring in Boncong, is still a hot month, with an average temperature fluctuating between 33.6°C (92.5°F) and 23.1°C (73.6°F).Temperature
September and October represent the warmest period, with an average high-temperature of 33.6°C (92.5°F).Heat index
The heat index in September is estimated at an extremely hot 43°C (109.4°F). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
With an average relative humidity of 65%, September is the least humid month in Boncong, Indonesia.Rainfall
In Boncong, Indonesia, in September, during 10.9 rainfall days, 31mm (1.22") of precipitation is typically accumulated. In Boncong, during the entire year, the rain falls for 256 days and collects up to 1649mm (64.92") of precipitation.Sea temperature
In Boncong, the average seawater temperature in September is 28.5°C (83.3°F).Note: For activities in the water such as swimming or diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal for prolonged enjoyment without discomfort.
Daylight
The average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:33 and sunset at 17:32. On the last day of the month, sunrise is at 05:18 and sunset at 17:27 WIB.
Sunshine
The average sunshine in September is 9.5h.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 health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 7 during September, leads to the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Boncong, Indonesia
- Average high temperature in September: 33.6°C
The warmest months (with the highest average high temperature) are September and October (33.6°C).
The months with the lowest average high temperature are January and February (29.8°C).
- Average low temperature in September: 23.1°C
The month with the highest average low temperature is November (24.6°C).
The coldest month (with the lowest average low temperature) is July (22.3°C).
Average pressure in September
Boncong, 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 (1008.8mbar).
Average wind speed in September
Boncong, Indonesia
- Average wind speed in September: 8.3km/h
The windiest months (with the highest average wind speed) are January and August (8.6km/h).
The calmest month (with the lowest average wind speed) is April (5.4km/h).
Average humidity in September
Boncong, Indonesia
- Average humidity in September: 65%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is September (65%).
Average rainfall in September
Boncong, Indonesia
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is March (259mm).
The driest month (with the least rainfall) is August (24mm).
Average rainfall days in September
Boncong, Indonesia
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is January (29.9 days).
The month with the least rainy days is August (10.6 days).
Average sea temperature in September
Boncong, Indonesia
- Average sea temperature in September: 28.5°C
The best month for swimming (with the highest average sea temperature) is December (30.2°C).
The coldest month (with the lowest average sea temperature) is August (28.1°C).
Average daylight in September /
Average sunshine in September
Boncong, 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 42min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 6h and 30min).
Average sunshine days in September
Boncong, Indonesia
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is January (0.3 days).
Average UV index in September
Boncong, 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
Boncong, Indonesia
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 28).
Average visibility in September
Boncong, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are August, September and October (10km).
The months with the lowest visibility are January, February, March, April and December (8km).
