September weather forecast
Ketanjung, Indonesia

September

Weather in September

September, the first month of the spring in Ketanjung, is also a hot month, with an average temperature fluctuating between 23.8°C (74.8°F) and 33°C (91.4°F).

Temperature

Ketanjung's September reports an average high-temperature of a still tropical 33°C (91.4°F), exhibiting a minor difference from August. Ketanjung observes an average nighttime low-temperature of 23.8°C (74.8°F) during the month of September.

Heat index

The average heat index in September is computed to be a scorching 42°C (107.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The least humid month is September, with an average relative humidity of 66%.

Rainfall

In September, the rain falls for 10.5 days. Throughout September, 25mm (0.98") of precipitation is accumulated. Throughout the year, there are 239.6 rainfall days, and 1140mm (44.88") of precipitation is accumulated.

Daylight

The average length of the day in September in Ketanjung is 12h and 4min.
On the first day of September, sunrise is at 05:37 and sunset at 17:36. On the last day of the month, sunrise is at 05:21 and sunset at 17:31 WIB.

Sunshine

The average sunshine in September in Ketanjung is 9.7h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Ketanjung, Indonesia. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Ketanjung, Indonesia. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 7 during September, leads to the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.

Frequently asked questions

How hot does it get in Ketanjung in September?
In Ketanjung, in September, the average high-temperature is 33°C (91.4°F), and the average low-temperature is 23.8°C (74.8°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 42°C (107.6°F).
What is the least humid month in Ketanjung?
The least humid month in Ketanjung is September, with an average relative humidity of 66%.
What is the average humidity in September in Ketanjung?
In September, the average relative humidity in Ketanjung is 66%.
How many days does it rain in September in Ketanjung?
In Ketanjung, in September, it is raining for 10.5 days, with typically 25mm (0.98") of accumulated precipitation.
How many hours of daylight does Ketanjung have in September?
In Ketanjung, Indonesia, the average day length in September is 12h and 4min.
When is the sunrise / sunset in September in Ketanjung?
On the first day of September, sunrise is at 05:37 and sunset at 17:36. On the last day of the month, sunrise is at 05:21 and sunset at 17:31 WIB.
How many hours of sunshine does Ketanjung have in September?
In Ketanjung, Indonesia, the average sunshine duration in September is 9.7h.
What are the months with the highest UV index in Ketanjung?
The months with the highest UV index in Ketanjung, Indonesia, are January through December, with an average maximum UV index of 7.
When is the lowest UV index in Ketanjung?
January through December, with an average maximum UV index of 7, are months with the lowest UV index in Ketanjung.
What is the UV index intensity in September in Ketanjung?
The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Ketanjung, Indonesia
  • Average high temperature in September: 33°C

The warmest month (with the highest average high temperature) is October (33.5°C).
The months with the lowest average high temperature are January and February (29.8°C).

  • Average low temperature in September: 23.8°C

The month with the highest average low temperature is November (25.3°C).
The coldest months (with the lowest average low temperature) are July and August (23.3°C).

Average pressure in September
Ketanjung, Indonesia
  • Average pressure in September: 1011.2mbar

The month with the highest atmospheric pressure is September (1011.2mbar).
The month with the lowest atmospheric pressure is December (1008.9mbar).

Average wind speed in September
Ketanjung, Indonesia
  • Average wind speed in September: 8.5km/h

The windiest month (with the highest average wind speed) is January (10.5km/h).
The calmest month (with the lowest average wind speed) is April (5.9km/h).

Average humidity in September
Ketanjung, Indonesia
  • Average humidity in September: 66%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is September (66%).

Average rainfall in September
Ketanjung, Indonesia
  • Average rainfall in September: 25mm

The wettest month (with the highest rainfall) is January (192mm).
The driest month (with the least rainfall) is August (16mm).

Average rainfall days in September
Ketanjung, Indonesia
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is January (27.7 days).
The month with the least rainy days is August (9.5 days).

Average daylight in September /
Average sunshine in September
Ketanjung, Indonesia
  • Average daylight in September: 12h and 1min

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 4min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 7h and 48min).

Average sunshine days in September
Ketanjung, Indonesia
  • Average sunshine days in September: 17 days

The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is January (2.1 days).

Average UV index in September
Ketanjung, 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
Ketanjung, Indonesia
  • Average cloud cover in September: 24

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in September
Ketanjung, Indonesia
  • Average visibility in September: 10km

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).

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