September weather forecastPetompon, Indonesia
September
Weather in September
The first month of the spring, September, is still a tropical month in Petompon, Indonesia, with an average temperature fluctuating between 23.8°C (74.8°F) and 33.2°C (91.8°F).Temperature
As Petompon steps into September, the average high-temperature holds at a still tropical 33.2°C (91.8°F), hinting at a minor fluctuation from the prior month. During the month of September, Petompon anticipates a mean low-temperature of 23.8°C (74.8°F).Heat index
The heat index in September is evaluated at a blisteringly hot 42°C (107.6°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
With an average relative humidity of 66%, September is the least humid month.Rainfall
In Petompon, during September, the rain falls for 10.8 days and regularly aggregates up to 24mm (0.94") of precipitation. Throughout the year, in Petompon, there are 226.7 rainfall days, and 1000mm (39.37") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 4min.On the first day of the month, sunrise is at 05:38 and sunset at 17:37. On the last day of September, sunrise is at 05:23 and sunset at 17:33 WIB.
Sunshine
In Petompon, the average sunshine in September is 9.7h.UV index
The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 7 during September translates into these guidelines:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Petompon, Indonesia
- Average high temperature in September: 33.2°C
The warmest month (with the highest average high temperature) is October (33.5°C).
The month with the lowest average high temperature is January (29.7°C).
- Average low temperature in September: 23.8°C
The month with the highest average low temperature is November (25.4°C).
The coldest month (with the lowest average low temperature) is July (23°C).
Average pressure in September
Petompon, 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 (1009mbar).
Average wind speed in September
Petompon, Indonesia
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is January (10.1km/h).
The calmest month (with the lowest average wind speed) is April (5.8km/h).
Average humidity in September
Petompon, Indonesia
- Average humidity in September: 66%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is September (66%).
Average rainfall in September
Petompon, Indonesia
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is January (163mm).
The driest month (with the least rainfall) is August (14mm).
Average rainfall days in September
Petompon, Indonesia
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is January (25.3 days).
The month with the least rainy days is August (8.9 days).
Average daylight in September /
Average sunshine in September
Petompon, 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 month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 8h and 12min).
Average sunshine days in September
Petompon, Indonesia
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is August (19.7 days).
The month with the least sunshine days is November (3 days).
Average UV index in September
Petompon, 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
Petompon, Indonesia
- Average cloud cover in September: 23
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Petompon, Indonesia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April and May (9km).





