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September Weather in Siborong-Borong, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Siborong-Borong, Indonesia hovers around 21°C (70°F), making it a delightful time to visit. However, be prepared for a range, with temperatures dipping to a minimum of 16°C (62°F) and peaking at a warm 28°C (83°F). Expect frequent rain, with an impressive 282 mm (11.1 in) of precipitation spread over 24 days. Humidity levels are notably high at 89%, so pack accordingly for a comfortable stay!

September Temperature in Siborong-Borong

In September in Siborong-Borong, the average temperature is 21°C (70°F), with maximums reaching 28°C (83°F) and minimums dipping to 16°C (62°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

September Weather in Siborong-Borong: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Siborong-Borong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siborong-Borong, September typically has an average temperature of 21°C (70°F), with highs reaching up to 28°C (83°F) and lows dropping to around 16°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec707071717271707070707070
Data source: Temperature data for Siborong-Borong 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 Siborong-Borong

In Siborong-Borong in September, the precipitation amount is 282 mm (11.1 in) spread over 24 days.

September Precipitation Trends in Siborong-Borong

The chart displays monthly precipitation patterns in Siborong-Borong, 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 Siborong-Borong, September typically receives around 282 mm (11.1 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec176179220262227175137174282263372294
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Siborong-Borong

In Siborong-Borong in September, humidity is 89%. With an average temperature of 21°C (70°F), this humidity feels like a warm, heavy blanket wrapping around you, making travel feel sluggish and prompting you to seek occasional relief in shaded areas or air-conditioned spaces.

September Average Humidity in Siborong-Borong

This chart illustrates the average monthly humidity levels in Siborong-Borong, 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 Siborong-Borong is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%74%74%77%83%85%84%87%89%89%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Siborong-Borong

In Siborong-Borong in September, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Siborong-Borong.

Maximum UV Index Levels in Siborong-Borong for September

The chart shows the monthly maximum UV Index (UVI) for Siborong-Borong 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 Siborong-Borong typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151617171613131516151413
Data source: Siborong-Borong 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 Siborong-Borong Compares to Other Months

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

This table compares monthly weather conditions in Siborong-Borong, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)175 mm (6.9 inches)83%extreme
February Weather21°C (71°F)179 mm (7.1 inches)74%extreme
March Weather22°C (71°F)220 mm (8.6 inches)74%extreme
April Weather22°C (71°F)262 mm (10.3 inches)77%extreme
May Weather22°C (72°F)227 mm (8.9 inches)82%extreme
June Weather22°C (71°F)175 mm (6.9 inches)85%extreme
July Weather21°C (70°F)137 mm (5.4 inches)84%extreme
August Weather21°C (70°F)174 mm (6.8 inches)87%extreme
September Weather21°C (70°F)282 mm (11.1 inches)89%extreme
October Weather21°C (70°F)263 mm (10.4 inches)89%extreme
November Weather21°C (70°F)372 mm (14.7 inches)88%extreme
December Weather21°C (70°F)294 mm (11.6 inches)88%extreme

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