September weather forecastSlerok, Indonesia
September
Weather in September
The first month of the spring, September, is a tropical month in Slerok, Indonesia, with an average temperature fluctuating between 23.9°C (75°F) and 30.3°C (86.5°F).Temperature
September observes an average high-temperature of a tropical 30.3°C (86.5°F), marking an insignificant difference from August's 29.8°C (85.6°F). During September, the average low-temperature is a moderately hot 23.9°C (75°F).Heat index
September's average heat index is evaluated at a sweltering 36°C (96.8°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
The months with the lowest humidity are September and October, with an average relative humidity of 71%.Rainfall
In Slerok, in September, it is raining for 10.6 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, there are 234.4 rainfall days, and 1075mm (42.32") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 4min.On the first day of September, sunrise is at 05:43 and sunset at 17:42. On the last day of the month, sunrise is at 05:28 and sunset at 17:38 WIB.
Sunshine
In September, the average sunshine is 9.7h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Slerok, Indonesia
- Average high temperature in September: 30.3°C
The warmest month (with the highest average high temperature) is October (31°C).
The month with the lowest average high temperature is February (29.1°C).
- Average low temperature in September: 23.9°C
The month with the highest average low temperature is November (25.7°C).
The coldest month (with the lowest average low temperature) is August (23.6°C).
Average pressure in September
Slerok, 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 (1009.2mbar).
Average wind speed in September
Slerok, Indonesia
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is January (10.8km/h).
The calmest month (with the lowest average wind speed) is April (6.8km/h).
Average humidity in September
Slerok, Indonesia
- Average humidity in September: 71%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are September and October (71%).
Average rainfall in September
Slerok, Indonesia
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is January (215mm).
The driest month (with the least rainfall) is August (17mm).
Average rainfall days in September
Slerok, Indonesia
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is January (27.1 days).
The month with the least rainy days is August (7.5 days).
Average daylight in September /
Average sunshine in September
Slerok, 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 month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 8h and 12min).
Average sunshine days in September
Slerok, Indonesia
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is August (20.7 days).
The month with the least sunshine days is February (1.8 days).
Average UV index in September
Slerok, 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
Slerok, Indonesia
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Slerok, 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).
