September weather forecastDerwati, Indonesia
September
Weather in September
September, the first month of the spring in Derwati, is also a moderately hot month, with an average temperature varying between 28.1°C (82.6°F) and 18°C (64.4°F).Temperature
Derwati's temperature records reveal September as the warmest month, marked by average highs of 28.1°C (82.6°F) and lows of 18°C (64.4°F).Heat index
For September, the heat index is appraised at a tropical 32°C (89.6°F). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.Consider that heat index readings are for situations in the shade and light wind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
With an average relative humidity of 75%, September is the least humid month.Rainfall
In Derwati, during September, the rain falls for 16.4 days and regularly aggregates up to 79mm (3.11") of precipitation. Throughout the year, there are 296.8 rainfall days, and 2783mm (109.57") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:49 and sunset at 17:48. On the last day of the month, sunrise is at 05:34 and sunset at 17:44 WIB.
Sunshine
September has the most sunshine of the year, with an average of 8.8h of sunshine.UV index
February, April through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 6 in September leads to these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Derwati, Indonesia
- Average high temperature in September: 28.1°C
The warmest month (with the highest average high temperature) is September (28.1°C).
The month with the lowest average high temperature is January (24.8°C).
- Average low temperature in September: 18°C
The months with the highest average low temperature are November and December (19.6°C).
The coldest month (with the lowest average low temperature) is August (17.6°C).
Average pressure in September
Derwati, Indonesia
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is September (1011.5mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).
Average wind speed in September
Derwati, Indonesia
- Average wind speed in September: 4.9km/h
The windiest month (with the highest average wind speed) is January (6km/h).
The calmest month (with the lowest average wind speed) is April (4.1km/h).
Average humidity in September
Derwati, Indonesia
- Average humidity in September: 75%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is September (75%).
Average rainfall in September
Derwati, Indonesia
- Average rainfall in September: 79mm
The wettest months (with the highest rainfall) are March and December (383mm).
The driest month (with the least rainfall) is August (67mm).
Average rainfall days in September
Derwati, Indonesia
- Average rainfall days in September: 16.4 days
The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (15.9 days).
Average daylight in September /
Average sunshine in September
Derwati, 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 48min
The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Derwati, Indonesia
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is August (14.4 days).
The month with the least sunshine days is February (0.2 days).
Average UV index in September
Derwati, Indonesia
- Average UV index in September: 6
The months with the highest UV index are February, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January and March (UV index 5).
Average cloud cover in September
Derwati, Indonesia
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are August and September (Cloud cover 38).
Average visibility in September
Derwati, Indonesia
- Average visibility in September: 8km
The months with the highest visibility are August, September and October (8km).
The months with the lowest visibility are January, February, March, April, May, June, July, November and December (7km).
