September weather forecastBandarsono, Indonesia
September
Weather in September
September, the first month of the autumn in Bandarsono, is still a hot month, with an average temperature ranging between max 31.3°C (88.3°F) and min 23.8°C (74.8°F).Temperature
Bandarsono notes an average high-temperature of a still tropical 31.3°C (88.3°F) in September, hardly diverging from August. During the month of September, an average low-temperature of 23.8°C (74.8°F) is recorded.Heat index
September's average heat index is estimated at a blisteringly hot 42°C (107.6°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
In September, the average relative humidity in Bandarsono, Indonesia, is 79%.Rainfall
In Bandarsono, during September, the rain falls for 26.9 days and regularly aggregates up to 115mm (4.53") of precipitation. In Bandarsono, during the entire year, the rain falls for 326.9 days and collects up to 1594mm (62.76") of precipitation.Daylight
In Bandarsono, the average length of the day in September is 12h and 8min.On the first day of September, sunrise is at 06:17 and sunset at 18:28. On the last day of the month, sunrise is at 06:10 and sunset at 18:15 WIB.
Sunshine
The average sunshine in September is 8.8h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 7 suggests these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bandarsono, Indonesia
- Average high temperature in September: 31.3°C
The warmest month (with the highest average high temperature) is June (32.1°C).
The months with the lowest average high temperature are January and December (30°C).
- Average low temperature in September: 23.8°C
The months with the highest average low temperature are April and May (24.6°C).
The coldest months (with the lowest average low temperature) are January and February (23.3°C).
Average pressure in September
Bandarsono, Indonesia
- Average pressure in September: 1010.5mbar
The month with the highest atmospheric pressure is January (1010.7mbar).
The month with the lowest atmospheric pressure is May (1009.4mbar).
Average wind speed in September
Bandarsono, Indonesia
- Average wind speed in September: 5.4km/h
The windiest months (with the highest average wind speed) are January and February (6.3km/h).
The calmest months (with the lowest average wind speed) are May, September and October (5.4km/h).
Average humidity in September
Bandarsono, Indonesia
- Average humidity in September: 79%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is March (77%).
Average rainfall in September
Bandarsono, Indonesia
- Average rainfall in September: 115mm
The wettest month (with the highest rainfall) is October (183mm).
The driest month (with the least rainfall) is July (93mm).
Average rainfall days in September
Bandarsono, Indonesia
- Average rainfall days in September: 26.9 days
The month with the highest number of rainy days is December (30 days).
The month with the least rainy days is July (23.2 days).
Average daylight in September /
Average sunshine in September
Bandarsono, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 8h and 48min
The months with the most sunshine are June and July (Average sunshine: 9h and 0min).
The month with the least sunshine is November (Average sunshine: 7h and 36min).
Average sunshine days in September
Bandarsono, Indonesia
- Average sunshine days in September: 2.2 days
The month with the most sunshine days is July (5.7 days).
The month with the least sunshine days is November (0 days).
Average UV index in September
Bandarsono, 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
Bandarsono, Indonesia
- Average cloud cover in September: 39
The month with the most cloud cover is November (Cloud cover 48).
The months with the least cloud cover are March, June and July (Cloud cover 33).
Average visibility in September
Bandarsono, Indonesia
- Average visibility in September: 9km
The months with the highest visibility are February, March, June and August (10km).
The months with the lowest visibility are January, April, May, July, September, October, November and December (9km).





