September weather forecastCoprayan, Indonesia
September
Weather in September
September, the first month of the spring in Coprayan, is still a tropical month, with temperature in the range of an average high of 30.9°C (87.6°F) and an average low of 22.8°C (73°F).Temperature
The advent of September presents an average high-temperature of a still hot 30.9°C (87.6°F), maintaining a close correlation with the preceding month. An average temperature of 22.8°C (73°F) is recorded in Coprayan during the nights in September.Heat index
For September, the heat index is computed to be a very hot 37°C (98.6°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. 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 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. 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. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
September and October, with an average relative humidity of 70%, are the least humid months in Coprayan.Rainfall
In Coprayan, during September, the rain falls for 11.8 days and regularly aggregates up to 26mm (1.02") of precipitation. In Coprayan, during the entire year, the rain falls for 252.6 days and collects up to 1282mm (50.47") of precipitation.Daylight
In Coprayan, the average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:41 and sunset at 17:40. On the last day of the month, sunrise is at 05:26 and sunset at 17:36 WIB.
Sunshine
In September, the average sunshine in Coprayan, Indonesia, is 9.5h.UV index
The months with the highest UV index in Coprayan are February through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 7 in September leads to these recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Coprayan, Indonesia
- Average high temperature in September: 30.9°C
The warmest month (with the highest average high temperature) is October (31.3°C).
The month with the lowest average high temperature is February (29°C).
- Average low temperature in September: 22.8°C
The month with the highest average low temperature is November (24.8°C).
The coldest month (with the lowest average low temperature) is July (22.6°C).
Average pressure in September
Coprayan, 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 (1009.1mbar).
Average wind speed in September
Coprayan, Indonesia
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is January (9.1km/h).
The calmest month (with the lowest average wind speed) is April (5.4km/h).
Average humidity in September
Coprayan, Indonesia
- Average humidity in September: 70%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are September and October (70%).
Average rainfall in September
Coprayan, Indonesia
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is January (214mm).
The driest month (with the least rainfall) is August (13mm).
Average rainfall days in September
Coprayan, Indonesia
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is January (28.8 days).
The month with the least rainy days is August (8.8 days).
Average daylight in September /
Average sunshine in September
Coprayan, 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 30min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 7h and 48min).
Average sunshine days in September
Coprayan, Indonesia
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is February (0.6 days).
Average UV index in September
Coprayan, Indonesia
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in September
Coprayan, Indonesia
- Average cloud cover in September: 23
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Coprayan, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, March, April and December (9km).





