September weather forecastBrebes, Indonesia
September
Weather in September
September, the first month of the spring in Brebes, is also a moderately hot month, with an average temperature varying between 20.8°C (69.4°F) and 29.7°C (85.5°F).Temperature
The commencement of September notes an average high-temperature of a still warm 29.7°C (85.5°F), exhibiting little difference from the previous month. In September, the nighttime temperature in Brebes lowers to an average of 20.8°C (69.4°F).Heat index
September's mean heat index is evaluated at a fiery hot 36°C (96.8°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Research indicates the heat index considers values in shaded locales and with light winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
With an average relative humidity of 77%, September is the least humid month in Brebes.Rainfall
In September, in Brebes, the rain falls for 15.8 days. Throughout September, 53mm (2.09") of precipitation is accumulated. In Brebes, during the entire year, the rain falls for 290.8 days and collects up to 2049mm (80.67") of precipitation.Daylight
In September, the average length of the day is 12h and 4min.On the first day of September in Brebes, sunrise is at 05:44 and sunset at 17:43. On the last day of the month, sunrise is at 05:28 and sunset at 17:38 WIB.
Sunshine
In Brebes, Indonesia, the average sunshine in September is 8.9h.UV index
The months with the lowest UV index are January through September, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brebes, Indonesia
- Average high temperature in September: 29.7°C
The warmest month (with the highest average high temperature) is October (30.2°C).
The month with the lowest average high temperature is July (28.1°C).
- Average low temperature in September: 20.8°C
The month with the highest average low temperature is November (22.5°C).
The coldest month (with the lowest average low temperature) is August (20.4°C).
Average pressure in September
Brebes, Indonesia
- Average pressure in September: 1011.7mbar
The months with the highest atmospheric pressure are August and September (1011.7mbar).
The month with the lowest atmospheric pressure is December (1009mbar).
Average wind speed in September
Brebes, Indonesia
- Average wind speed in September: 10km/h
The windiest months (with the highest average wind speed) are August and September (10km/h).
The calmest month (with the lowest average wind speed) is April (5.9km/h).
Average humidity in September
Brebes, Indonesia
- Average humidity in September: 77%
The months with the highest relative humidity are January, February, March, April and May (85%).
The month with the lowest relative humidity is September (77%).
Average rainfall in September
Brebes, Indonesia
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is March (291mm).
The driest month (with the least rainfall) is August (27mm).
Average rainfall days in September
Brebes, Indonesia
- Average rainfall days in September: 15.8 days
The month with the highest number of rainy days is March (30.5 days).
The month with the least rainy days is August (12.2 days).
Average daylight in September /
Average sunshine in September
Brebes, 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: 8h and 54min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
Brebes, Indonesia
- Average sunshine days in September: 9.4 days
The month with the most sunshine days is August (14.4 days).
The months with the least sunshine days are January, February and March (0.3 days).
Average UV index in September
Brebes, Indonesia
- Average UV index in September: 6
The month with the highest UV index is October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
Average cloud cover in September
Brebes, Indonesia
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Brebes, Indonesia
- Average visibility in September: 9km
The months with the highest visibility are June, July, August, September, October and December (9km).
The months with the lowest visibility are January, February, March, April, May and November (8km).
