September weather forecastCiwandan, Indonesia
September
Weather in September
September, the first month of the spring in Ciwandan, is still a tropical month, with an average temperature varying between 25°C (77°F) and 31.3°C (88.3°F).Temperature
Ciwandan records an average high-temperature of a still hot 31.3°C (88.3°F) in September, maintaining a close correlation with August's 30.7°C (87.3°F). In September, Ciwandan experiences a temperature dip to an average of 25°C (77°F) at night.Heat index
For most parts of September, the heat index is computed to be a sweltering 39°C (102.2°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. 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 extremely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
The months with the lowest humidity in Ciwandan are September and October, with an average relative humidity of 71%.Rainfall
In Ciwandan, in September, during 13.3 rainfall days, 31mm (1.22") of precipitation is typically accumulated. In Ciwandan, during the entire year, the rain falls for 273 days and collects up to 1266mm (49.84") of precipitation.Daylight
In September, the average length of the day in Ciwandan is 12h and 4min.On the first day of the month, sunrise is at 05:56 and sunset at 17:56. On the last day of September, sunrise is at 05:41 and sunset at 17:50 WIB.
Sunshine
The month with the most sunshine is September, with an average of 9.3h of sunshine.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 7 during September translates into the following directions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ciwandan, Indonesia
- Average high temperature in September: 31.3°C
The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is January (29.6°C).
- Average low temperature in September: 25°C
The months with the highest average low temperature are May and November (26°C).
The coldest month (with the lowest average low temperature) is August (24.5°C).
Average pressure in September
Ciwandan, Indonesia
- Average pressure in September: 1011mbar
The month with the highest atmospheric pressure is September (1011mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in September
Ciwandan, Indonesia
- Average wind speed in September: 6.2km/h
The windiest months (with the highest average wind speed) are January and December (11.3km/h).
The calmest month (with the lowest average wind speed) is September (6.2km/h).
Average humidity in September
Ciwandan, Indonesia
- Average humidity in September: 71%
The months with the highest relative humidity are February and March (78%).
The months with the lowest relative humidity are September and October (71%).
Average rainfall in September
Ciwandan, Indonesia
- Average rainfall in September: 31mm
The wettest months (with the highest rainfall) are January and February (180mm).
The driest month (with the least rainfall) is August (29mm).
Average rainfall days in September
Ciwandan, Indonesia
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is January (28.8 days).
The month with the least rainy days is August (11.3 days).
Average daylight in September /
Average sunshine in September
Ciwandan, 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 18min
The month with the most sunshine is September (Average sunshine: 9h and 18min).
The months with the least sunshine are June and July (Average sunshine: 7h and 12min).
Average sunshine days in September
Ciwandan, Indonesia
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is August (16.9 days).
The month with the least sunshine days is January (0.6 days).
Average UV index in September
Ciwandan, 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
Ciwandan, Indonesia
- Average cloud cover in September: 25
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Ciwandan, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
