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September Weather in Harapan Jaya, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Harapan Jaya, Indonesia hovers around 27°C (82°F), with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 31°C (89°F). Expect a hefty precipitation amount of 298 mm (11.7 in) across approximately 24 days, contributing to an average humidity of 81%. Whether you're planning outdoor activities or seeking shade, be prepared for a warm, humid month!

September Temperature in Harapan Jaya

In September in Harapan Jaya, the average temperature is 27°C (82°F), with a maximum reaching 31°C (89°F) and a minimum dropping to as low as 25°C (77°F). This pleasant warm weather makes Harapan Jaya an inviting destination for travelers looking to enjoy outdoor activities and explore the local attractions.

September Weather in Harapan Jaya: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Harapan Jaya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harapan Jaya, September typically has an average temperature of 27°C (82°F), with highs reaching up to 31°C (89°F) and lows dropping to around 25°C (77°F).
JanFebMarAprMayJunJulAugSepOctNovDec797981828282828281818180
Data source: Temperature data for Harapan Jaya generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Harapan Jaya

In Harapan Jaya in September, the total precipitation amount is 298 mm (11.7 in) over a duration of 24 days.

September Precipitation Trends in Harapan Jaya

The chart displays monthly precipitation patterns in Harapan Jaya, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Harapan Jaya, September typically receives around 298 mm (11.7 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec17685149209315285247215298343348288
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Harapan Jaya

In Harapan Jaya in September, humidity is 81%. With an average temperature of 27°C (82°F), this humidity feels like a warm, sticky embrace, making traveling somewhat uncomfortable as the heat clings to your skin and the air feels thick, often leaving you yearning for a refreshing breeze.

September Average Humidity in Harapan Jaya

This chart illustrates the average monthly humidity levels in Harapan Jaya, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Harapan Jaya is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%88%82%78%78%77%79%81%79%79%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Harapan Jaya

In Harapan Jaya in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Harapan Jaya, you can check here.

Maximum UV Index Levels in Harapan Jaya for September

The chart shows the monthly maximum UV Index (UVI) for Harapan Jaya in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Harapan Jaya typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516161413131414141312
Data source: Harapan Jaya September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Harapan Jaya Compares to Other Months

Weather in Harapan Jaya varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Harapan Jaya, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Harapan Jaya, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)176 mm (6.9 inches)87%extreme
February Weather26°C (80°F)85 mm (3.4 inches)86%extreme
March Weather27°C (81°F)149 mm (5.9 inches)88%extreme
April Weather28°C (82°F)209 mm (8.2 inches)82%extreme
May Weather28°C (83°F)315 mm (12.4 inches)78%extreme
June Weather28°C (82°F)285 mm (11.2 inches)78%extreme
July Weather28°C (82°F)247 mm (9.7 inches)77%extreme
August Weather28°C (82°F)215 mm (8.5 inches)79%extreme
September Weather27°C (82°F)298 mm (11.7 inches)81%extreme
October Weather27°C (81°F)343 mm (13.5 inches)79%extreme
November Weather27°C (81°F)348 mm (13.7 inches)79%extreme
December Weather27°C (80°F)288 mm (11.3 inches)83%extreme

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