September weather forecastSemawut, Indonesia
September
Weather in September
September, the first month of the spring in Semawut, is still a hot month, with an average temperature fluctuating between 33.6°C (92.5°F) and 22.4°C (72.3°F).Temperature
September notes an average high-temperature of a still tropical 33.6°C (92.5°F), subtly differing from August's 32.3°C (90.1°F). Throughout the month of September, Semawut witnesses an average low-temperature of 22.4°C (72.3°F).Heat index
The heat index value for September is computed to be a scorching 42°C (107.6°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. 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.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
September and October, with an average relative humidity of 62%, are the least humid months.Rainfall
In Semawut, during September, the rain falls for 5.2 days and regularly aggregates up to 12mm (0.47") of precipitation. Throughout the year, there are 218.1 rainfall days, and 1410mm (55.51") of precipitation is accumulated.Daylight
In Semawut, the average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 05:30 and sunset at 17:28. On the last day of September, sunrise is at 05:14 and sunset at 17:24 WIB.
Sunshine
The months with the most sunshine are August through October, with an average of 9.7h of sunshine.UV index
February, April through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 7 during September morphs into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Semawut, Indonesia
- Average high temperature in September: 33.6°C
The warmest month (with the highest average high temperature) is October (34.6°C).
The month with the lowest average high temperature is February (30.1°C).
- Average low temperature in September: 22.4°C
The month with the highest average low temperature is November (24.9°C).
The coldest months (with the lowest average low temperature) are July and August (21.8°C).
Average pressure in September
Semawut, Indonesia
- Average pressure in September: 1011.4mbar
The months with the highest atmospheric pressure are August and September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).
Average wind speed in September
Semawut, Indonesia
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is September (7.7km/h).
The calmest month (with the lowest average wind speed) is April (5.4km/h).
Average humidity in September
Semawut, Indonesia
- Average humidity in September: 62%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are September and October (62%).
Average rainfall in September
Semawut, Indonesia
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is February (273mm).
The driest month (with the least rainfall) is August (6mm).
Average rainfall days in September
Semawut, Indonesia
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is January (30.1 days).
The month with the least rainy days is August (4 days).
Average daylight in September /
Average sunshine in September
Semawut, 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 42min
The months with the most sunshine are August, September and October (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).
Average sunshine days in September
Semawut, Indonesia
- Average sunshine days in September: 23.8 days
The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is February (0.3 days).
Average UV index in September
Semawut, Indonesia
- Average UV index in September: 7
The months with the highest UV index are February, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January and March (UV index 6).
Average cloud cover in September
Semawut, Indonesia
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 17).
Average visibility in September
Semawut, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and March (8km).
