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September Weather in Mamuju, Indonesia

Last updated: August 23, 2025

The average temperature in Mamuju, Indonesia during September is a pleasant 25°C (77°F). Expect a minimum of 20°C (67°F) and a maximum of 30°C (87°F), making it a comfortable time to explore. However, be prepared for a fair amount of rain, with 402 mm (15.8 in) of precipitation expected over 28 days, and keep in mind the average humidity levels, which hover around 78%.

September Temperature in Mamuju

In September in Mamuju, the average temperature is 25°C (77°F), with maximums reaching 30°C (87°F) and minimums dipping as low as 20°C (67°F). This makes it an ideal time for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates September temperature patterns in Mamuju, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mamuju, September typically has an average temperature of 25°C (77°F), with highs reaching up to 30°C (87°F) and lows dropping to around 20°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec777777777877767777777777
Data source: Temperature data for Mamuju 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 Mamuju

In Mamuju in September, the total precipitation amount is 402 mm (15.8 in) over a span of 28 days.

September Precipitation Trends in Mamuju

The chart displays monthly precipitation patterns in Mamuju, 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 Mamuju, September typically receives around 402 mm (15.8 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec262290294425435435368351402427408286
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mamuju

In Mamuju in September, humidity is 78%. With an average temperature of 25°C (77°F), this humidity feels like walking through a warm, damp blanket, making travel feel a bit more exhausting and sticky as you navigate the sights.

September Average Humidity in Mamuju

This chart illustrates the average monthly humidity levels in Mamuju, 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 Mamuju is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%86%86%84%81%82%83%83%78%78%79%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mamuju

In Mamuju 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 Mamuju.

Maximum UV Index Levels in Mamuju for September

The chart shows the monthly maximum UV Index (UVI) for Mamuju 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 Mamuju typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616151412121415151414
Data source: Mamuju 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 Mamuju Compares to Other Months

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

This table compares monthly weather conditions in Mamuju, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)262 mm (10.3 inches)84%extreme
February Weather25°C (77°F)290 mm (11.4 inches)86%extreme
March Weather25°C (77°F)294 mm (11.6 inches)86%extreme
April Weather25°C (78°F)425 mm (16.7 inches)84%extreme
May Weather25°C (78°F)435 mm (17.1 inches)81%extreme
June Weather25°C (77°F)435 mm (17.1 inches)82%extreme
July Weather25°C (77°F)368 mm (14.5 inches)83%extreme
August Weather25°C (77°F)351 mm (13.8 inches)83%extreme
September Weather25°C (77°F)402 mm (15.8 inches)78%extreme
October Weather25°C (77°F)427 mm (16.8 inches)78%extreme
November Weather25°C (77°F)408 mm (16.1 inches)79%extreme
December Weather25°C (78°F)286 mm (11.3 inches)83%extreme

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