September weather forecast
Tangerang, Indonesia

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Weather in September

As September unfolds, Tangerang's rainfall begins a slow ascent, paralleling the gradual increase in temperature to 30.7°C (87.3°F). The air pressure, now at 1011.1mb, is a telling sign of the calm weather conditions that reign. A surge in sunlight hours escorts in the hope of more outdoor recreational activities and exploration. As nightfall draws near earlier, the city's nightlife takes on a more effervescent character under the mildly cooler weather conditions. As such, September in Tangerang offers a harmonic blend of gentle sun, comforting winds, and crescents of clouds high above.

Temperature

The transition into September in Tangerang notes an average high-temperature of a still tropical 30.7°C (87.3°F), revealing a mild distinction from the 30.4°C (86.7°F) in August. An average low-temperature of 25.2°C (77.4°F) is anticipated throughout the nights during September.

Heat index

For September, the heat index is calculated to be a sweltering 37°C (98.6°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in 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 innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The months with the lowest humidity are September and October, with an average relative humidity of 69%.

Rainfall

In Tangerang, in September, it is raining for 17 days, with typically 56mm (2.2") of accumulated precipitation. In Tangerang, during the entire year, the rain falls for 283.6 days and collects up to 1323mm (52.09") of precipitation.

Daylight

In Tangerang, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:53 and sunset at 17:53. On the last day of September, in Tangerang, sunrise is at 05:38 and sunset at 17:48 WIB.

Sunshine

The average sunshine in September in Tangerang is 9.7h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Tangerang are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

Is it hot in Tangerang during September?

The high-temperature, in September, in Tangerang, is 30.7°C (87.3°F), while the low-temperature averages to 25.2°C (77.4°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in September is calculated to be 37°C (98.6°F).

What is the least humid month in Tangerang?

The months with the lowest humidity are September and October, with an average relative humidity of 69%.

What is the average humidity in September in Tangerang?

In September, the average relative humidity in Tangerang is 69%.

How many days does it rain in September in Tangerang?

In Tangerang, in September, during 17 rainfall days, 56mm (2.2") of precipitation is typically accumulated.

What is the average length of the day in September in Tangerang?

The average day length in September is 12h and 4min.

When are sunrise and sunset in September in Tangerang?

On the first day of September, sunrise is at 05:53 and sunset at 17:53. On the last day of the month, sunrise is at 05:38 and sunset at 17:48 WIB.

How many hours of sunshine does Tangerang have in September?

In Tangerang, the average sunshine duration in September is 9.7h.

What are the months with the highest UV index in Tangerang?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Tangerang, Indonesia.

When is the lowest UV index in Tangerang?

The months with the lowest UV index in Tangerang are January through December, with an average maximum UV index of 7.

How high is the UV index in September in Tangerang?

In Tangerang, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.

Average temperature in September
Tangerang, Indonesia

Average temperature in September - Tangerang, Indonesia
  • Average high temperature in September: 30.7°C

The warmest month (with the highest average high temperature) is October (31.3°C).
The month with the lowest average high temperature is January (29.6°C).

  • Average low temperature in September: 25.2°C

The months with the highest average low temperature are October and November (26.5°C).
The coldest month (with the lowest average low temperature) is July (24.9°C).

Average pressure in September
Tangerang, Indonesia

Average pressure in September - Tangerang, Indonesia
  • Average pressure in September: 1011.1mbar

The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in September
Tangerang, Indonesia

Average wind speed in September - Tangerang, Indonesia
  • Average wind speed in September: 8.6km/h

The windiest month (with the highest average wind speed) is January (12.6km/h).
The calmest month (with the lowest average wind speed) is September (8.6km/h).

Average humidity in September
Tangerang, Indonesia

Average humidity in September - Tangerang, Indonesia
  • Average humidity in September: 69%

The months with the highest relative humidity are February and March (76%).
The months with the lowest relative humidity are September and October (69%).

Average rainfall in September
Tangerang, Indonesia

Average rainfall in September - Tangerang, Indonesia
  • Average rainfall in September: 56mm

The wettest month (with the highest rainfall) is February (162mm).
The driest month (with the least rainfall) is August (49mm).

Average rainfall days in September
Tangerang, Indonesia

Average rainfall days in September - Tangerang, Indonesia
  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is March (28.1 days).
The month with the least rainy days is August (15.3 days).

Average daylight in September /
Average sunshine in September
Tangerang, Indonesia

Average daylight in September / Average sunshine in September - Tangerang, 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 48min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is March (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 7h and 12min).

Average sunshine days in September
Tangerang, Indonesia

Average sunshine days in September - Tangerang, Indonesia
  • Average sunshine days in September: 8.6 days

The month with the most sunshine days is August (10.5 days).
The month with the least sunshine days is March (1.8 days).

Average UV index in September
Tangerang, Indonesia

Average UV index in September - Tangerang, 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
Tangerang, Indonesia

Average cloud cover in September - Tangerang, Indonesia
  • Average cloud cover in September: 22

The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are August and September (Cloud cover 22).

Average visibility in September
Tangerang, Indonesia

Average visibility in September - Tangerang, Indonesia
  • Average visibility in September: 10km

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

Tangerang, Indonesia

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