September weather forecastCetan, Indonesia
September
Weather in September
The first month of the spring, September, is a hot month in Cetan, Indonesia, with temperature in the range of an average low of 21.1°C (70°F) and an average high of 30.6°C (87.1°F).Temperature
Cetan records an average high-temperature of a tropical 30.6°C (87.1°F) as September arrives, nearly mirroring the previous month's climate. Cetan observes an average nighttime low-temperature of 21.1°C (70°F) during the month of September.Heat index
September's average heat index is estimated at a fiery hot 38°C (100.4°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. 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 human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. 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 74%, are the least humid months.Rainfall
In Cetan, during September, the rain falls for 13.8 days and regularly aggregates up to 48mm (1.89") of precipitation. In Cetan, during the entire year, the rain falls for 276.8 days and collects up to 2048mm (80.63") 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 05:38 and sunset at 17:36. On the last day of September, sunrise is at 05:22 and sunset at 17:32 WIB.
Sunshine
August and September, with an average of 9.2h of sunshine, are months with the most sunshine.UV index
September and October, with an average maximum UV index of 7, are months with the highest UV index in Cetan. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 7 in September translates into these instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cetan, 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 July (28.4°C).
- Average low temperature in September: 21.1°C
The month with the highest average low temperature is November (22.7°C).
The coldest month (with the lowest average low temperature) is August (20.3°C).
Average pressure in September
Cetan, Indonesia
- Average pressure in September: 1011.6mbar
The months with the highest atmospheric pressure are August and September (1011.6mbar).
The month with the lowest atmospheric pressure is December (1009mbar).
Average wind speed in September
Cetan, Indonesia
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is September (9.7km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).
Average humidity in September
Cetan, Indonesia
- Average humidity in September: 74%
The months with the highest relative humidity are January, February, March and April (85%).
The months with the lowest relative humidity are September and October (74%).
Average rainfall in September
Cetan, Indonesia
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is March (313mm).
The driest month (with the least rainfall) is August (29mm).
Average rainfall days in September
Cetan, Indonesia
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is January (30.5 days).
The month with the least rainy days is August (8.9 days).
Average daylight in September /
Average sunshine in September
Cetan, Indonesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 9h and 12min
The months with the most sunshine are August and September (Average sunshine: 9h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 0min).
Average sunshine days in September
Cetan, Indonesia
- Average sunshine days in September: 13 days
The month with the most sunshine days is August (19.4 days).
The month with the least sunshine days is February (0.2 days).
Average UV index in September
Cetan, Indonesia
- Average UV index in September: 7
The months with the highest UV index are September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, November and December (UV index 6).
Average cloud cover in September
Cetan, Indonesia
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Cetan, Indonesia
- Average visibility in September: 9km
The months with the highest visibility are June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, April, May, November and December (8km).
