September weather forecastJatimerta, Indonesia
September
Weather in September
The first month of the spring, September, is a hot month in Jatimerta, Indonesia, with an average temperature fluctuating between 22.6°C (72.7°F) and 30.6°C (87.1°F).Temperature
September's commencement is accompanied by an average high-temperature of a tropical 30.6°C (87.1°F), diverging marginally from August's 29.9°C (85.8°F). Jatimerta observes an average low-temperature of 22.6°C (72.7°F) during September nights.Heat index
For most parts of September, the heat index is appraised at a torrid 37°C (98.6°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Realize that the values for the heat index are set for shaded places and light winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and 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 particularly relevant to children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
The months with the lowest humidity in Jatimerta are September and October, with an average relative humidity of 71%.Rainfall
In Jatimerta, in September, it is raining for 10.7 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, there are 244.1 rainfall days, and 1216mm (47.87") of precipitation is accumulated.Daylight
The average length of the day in September in Jatimerta is 12h and 4min.On the first day of the month, sunrise is at 05:46 and sunset at 17:45. On the last day of September, sunrise is at 05:30 and sunset at 17:40 WIB.
Sunshine
The months with the most sunshine in Jatimerta are July through September, with an average of 9.7h of sunshine.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Jatimerta. The months with the lowest UV index in Jatimerta are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jatimerta, Indonesia
- Average high temperature in September: 30.6°C
The warmest month (with the highest average high temperature) is October (31.4°C).
The month with the lowest average high temperature is February (29.3°C).
- Average low temperature in September: 22.6°C
The month with the highest average low temperature is December (25.2°C).
The coldest month (with the lowest average low temperature) is August (22.5°C).
Average pressure in September
Jatimerta, Indonesia
- Average pressure in September: 1011.4mbar
The month with the highest atmospheric pressure is September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in September
Jatimerta, Indonesia
- Average wind speed in September: 12.3km/h
The windiest month (with the highest average wind speed) is August (12.8km/h).
The calmest month (with the lowest average wind speed) is April (7km/h).
Average humidity in September
Jatimerta, Indonesia
- Average humidity in September: 71%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are September and October (71%).
Average rainfall in September
Jatimerta, Indonesia
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is February (207mm).
The driest month (with the least rainfall) is August (13mm).
Average rainfall days in September
Jatimerta, Indonesia
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is August (7.2 days).
Average daylight in September /
Average sunshine in September
Jatimerta, 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 July, August and September (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 8h and 18min).
Average sunshine days in September
Jatimerta, Indonesia
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is February (0.9 days).
Average UV index in September
Jatimerta, 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
Jatimerta, Indonesia
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Jatimerta, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).
