September weather forecastBontitan, Indonesia
September
Weather in September
September, the first month of the spring in Bontitan, is also a moderately hot month, with an average temperature ranging between min 21.3°C (70.3°F) and max 27.9°C (82.2°F).Temperature
With the advent of September, Bontitan's high-temperatures adjust to a still warm 27.9°C (82.2°F), closely aligning with the preceding month. Bontitan's average low-temperature for the month of September records at a pleasant 21.3°C (70.3°F).Heat index
The heat index in September is estimated at a hot 32°C (89.6°F). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. 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.
Humidity
The average relative humidity in September is 81%.Rainfall
In Bontitan, in September, during 17.4 rainfall days, 54mm (2.13") of precipitation is typically accumulated. Throughout the year, in Bontitan, there are 295.6 rainfall days, and 1843mm (72.56") of precipitation is accumulated.Daylight
In Bontitan, the average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:39 and sunset at 17:38. On the last day of the month, sunrise is at 05:23 and sunset at 17:34 WIB.
Sunshine
The average sunshine in September is 8.9h.UV index
The months with the lowest UV index are January, April through September, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 during September leads to these advisories:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bontitan, Indonesia
- Average high temperature in September: 27.9°C
The warmest month (with the highest average high temperature) is October (29.1°C).
The month with the lowest average high temperature is July (27.3°C).
- Average low temperature in September: 21.3°C
The months with the highest average low temperature are January and November (23.3°C).
The coldest month (with the lowest average low temperature) is August (21°C).
Average pressure in September
Bontitan, Indonesia
- Average pressure in September: 1011.9mbar
The month with the highest atmospheric pressure is September (1011.9mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in September
Bontitan, Indonesia
- Average wind speed in September: 11km/h
The windiest month (with the highest average wind speed) is August (11.5km/h).
The calmest month (with the lowest average wind speed) is April (6.9km/h).
Average humidity in September
Bontitan, Indonesia
- Average humidity in September: 81%
The months with the highest relative humidity are May and June (84%).
The month with the lowest relative humidity is October (80%).
Average rainfall in September
Bontitan, Indonesia
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is March (242mm).
The driest month (with the least rainfall) is August (25mm).
Average rainfall days in September
Bontitan, Indonesia
- Average rainfall days in September: 17.4 days
The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (13.6 days).
Average daylight in September /
Average sunshine in September
Bontitan, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is February (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in September
Bontitan, Indonesia
- Average sunshine days in September: 7.8 days
The month with the most sunshine days is August (12.3 days).
The month with the least sunshine days is March (0.5 days).
Average UV index in September
Bontitan, Indonesia
- Average UV index in September: 6
The months with the highest UV index are February, March and October (UV index 7).
The months with the lowest UV index are January, April, May, June, July, August, September, November and December (UV index 6).
Average cloud cover in September
Bontitan, Indonesia
- Average cloud cover in September: 40
The months with the most cloud cover are January and December (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 38).
Average visibility in September
Bontitan, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
