September weather forecastJatiseeng, Indonesia
September
Weather in September
The first month of the spring, September, is a tropical month in Jatiseeng, Indonesia, with an average temperature ranging between max 30.8°C (87.4°F) and min 22.8°C (73°F).Temperature
The beginning of September records an average high-temperature of a tropical 30.8°C (87.4°F), marking a negligible difference from August's 29.9°C (85.8°F). Jatiseeng experiences a nighttime temperature average of 22.8°C (73°F) during September.Heat index
In September, the heat index is estimated at a sweltering 37°C (98.6°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
The least humid month is September, with an average relative humidity of 70%.Rainfall
In Jatiseeng, during September, the rain falls for 10.7 days and regularly aggregates up to 22mm (0.87") of precipitation. In Jatiseeng, during the entire year, the rain falls for 244.1 days and collects up to 1214mm (47.8") of precipitation.Daylight
The average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 05:45 and sunset at 17:44. On the last day of September, sunrise is at 05:30 and sunset at 17:39 WIB.
Sunshine
The months with the most sunshine 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. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Jatiseeng. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. 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 ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jatiseeng, Indonesia
- Average high temperature in September: 30.8°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: 22.8°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
Jatiseeng, Indonesia
- Average pressure in September: 1011.3mbar
The months with the highest atmospheric pressure are August and September (1011.3mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in September
Jatiseeng, Indonesia
- Average wind speed in September: 12.5km/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
Jatiseeng, Indonesia
- Average humidity in September: 70%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is September (70%).
Average rainfall in September
Jatiseeng, 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
Jatiseeng, 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
Jatiseeng, 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 24min).
Average sunshine days in September
Jatiseeng, Indonesia
- Average sunshine days in September: 15.6 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
Jatiseeng, 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
Jatiseeng, 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
Jatiseeng, 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).





