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September Weather in Onimsari, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Onimsari, Indonesia is a warm 27°C (80°F), with daily variations ranging from a minimum of 22°C (72°F) to a maximum of 33°C (92°F). However, be prepared for some wet days, as precipitation totals 263 mm (10.3 in) over approximately 25 days, accompanied by a high average humidity of 87%.

September Temperature in Onimsari

In September in Onimsari, the average temperature is 27°C (80°F). Maximums can reach 33°C (92°F), and minimums can be as low as 22°C (72°F). This pleasant climate makes Onimsari an ideal destination for travelers seeking warm and comfortable weather.

September Weather in Onimsari: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Onimsari, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onimsari, September typically has an average temperature of 27°C (80°F), with highs reaching up to 33°C (92°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec828181818180798080818181
Data source: Temperature data for Onimsari 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 Onimsari

In Onimsari in September, the total precipitation amount is 263 mm (10.3 in), which falls over the course of 25 days.

September Precipitation Trends in Onimsari

The chart displays monthly precipitation patterns in Onimsari, 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 Onimsari, September typically receives around 263 mm (10.3 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec228260351363322263268180263296267289
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Onimsari

In Onimsari in September humidity is 87%. With an average temperature of 27°C (80°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and challenging for traveling.

September Average Humidity in Onimsari

This chart illustrates the average monthly humidity levels in Onimsari, 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 Onimsari is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%85%87%84%86%88%90%87%86%85%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Onimsari

In Onimsari in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Onimsari.

Maximum UV Index Levels in Onimsari for September

The chart shows the monthly maximum UV Index (UVI) for Onimsari 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 Onimsari typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151717161412131315151414
Data source: Onimsari 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 Onimsari Compares to Other Months

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

This table compares monthly weather conditions in Onimsari, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (82°F)228 mm (9.0 inches)85%extreme
February Weather27°C (82°F)260 mm (10.2 inches)86%extreme
March Weather27°C (81°F)351 mm (13.8 inches)85%extreme
April Weather27°C (81°F)362 mm (14.3 inches)87%extreme
May Weather27°C (82°F)322 mm (12.7 inches)84%extreme
June Weather27°C (80°F)263 mm (10.4 inches)86%extreme
July Weather26°C (80°F)268 mm (10.6 inches)88%extreme
August Weather27°C (80°F)180 mm (7.1 inches)90%extreme
September Weather27°C (80°F)263 mm (10.3 inches)87%extreme
October Weather27°C (81°F)296 mm (11.6 inches)86%extreme
November Weather27°C (82°F)267 mm (10.5 inches)85%extreme
December Weather27°C (82°F)288 mm (11.4 inches)85%extreme

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