September weather forecast
Bandarharjo, Indonesia

September

Weather in September

The first month of the spring, September, is also a hot month in Bandarharjo, Indonesia, with an average temperature fluctuating between 33.2°C (91.8°F) and 23.8°C (74.8°F).

Temperature

The transition into September notes an average high-temperature of a still hot 33.2°C (91.8°F), revealing a mild distinction from the 32.3°C (90.1°F) in August. Bandarharjo, in September, observes a steady average low-temperature of 23.8°C (74.8°F).

Heat index

For September, the heat index is appraised at a blistering 42°C (107.6°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

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

Rainfall

In Bandarharjo, in September, during 10.8 rainfall days, 24mm (0.94") of precipitation is typically accumulated. Throughout the year, in Bandarharjo, Indonesia, 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 September, sunrise is at 05:38 and sunset at 17:37. On the last day of the month, sunrise is at 05:23 and sunset at 17:33 WIB.

Sunshine

The average sunshine in September in Bandarharjo is 9.7h.

UV index

The months with the highest UV index in Bandarharjo, Indonesia, are February through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 during September leads to these advisories:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

How hot is it in Bandarharjo in September?
The average high-temperature, in September, in Bandarharjo, is 33.2°C (91.8°F), while the average low-temperature is 23.8°C (74.8°F). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 42°C (107.6°F).
What is the least humid month in Bandarharjo?
September is the least humid month, with an average relative humidity of 66%.
What is the average humidity in September in Bandarharjo?
The average relative humidity in September in Bandarharjo, Indonesia, is 66%.
How many days does it rain in September in Bandarharjo?
In Bandarharjo, during September, the rain falls for 10.8 days and regularly aggregates up to 24mm (0.94") of precipitation.
What is the average length of the day in September in Bandarharjo?
The average day length in September is 12h and 4min.
When is the sunrise / sunset in September in Bandarharjo?
On the first day of September in Bandarharjo, Indonesia, sunrise is at 05:38 and sunset at 17:37. On the last day of the month, sunrise is at 05:23 and sunset at 17:33 WIB.
How long on average sun shines in September in Bandarharjo?
In September, the average sunshine duration in Bandarharjo, Indonesia, is 9.7h.
When is the highest UV index in Bandarharjo?
February through December, with an average maximum UV index of 7, are months with the highest UV index in Bandarharjo, Indonesia.
What is the UV index intensity in September in Bandarharjo?
In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe 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
Bandarharjo, 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
Bandarharjo, 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
Bandarharjo, 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
Bandarharjo, 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
Bandarharjo, 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
Bandarharjo, 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
Bandarharjo, 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: 8h and 12min).

Average sunshine days in September
Bandarharjo, 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
Bandarharjo, 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
Bandarharjo, 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
Bandarharjo, 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).

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