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September Weather in Bitung, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Bitung, Indonesia is a warm 27°C (81°F), with daily highs reaching up to 31°C (88°F) and lows dipping to around 23°C (74°F). Expect a fair amount of precipitation, approximately 161 mm (6.3 in), spread over 18 days of the month, and a notable humidity level of 79%.

September Temperature in Bitung

In September in Bitung, the average temperature is 27°C (81°F). Maximums can reach 31°C (88°F), while minimums can be as low as 23°C (74°F). It's an ideal time for travelers to enjoy warm weather and outdoor activities.

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

The chart illustrates September temperature patterns in Bitung, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bitung, September typically has an average temperature of 27°C (81°F), with highs reaching up to 31°C (88°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec818181828281818181828282
Data source: Temperature data for Bitung 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 Bitung

In Bitung in September, the precipitation amount is 161 mm (6.3 in), occurring over the span of 18 days.

September Precipitation Trends in Bitung

The chart displays monthly precipitation patterns in Bitung, 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 Bitung, September typically receives around 161 mm (6.3 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec191148201186243300223114161127189173
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bitung

In Bitung in September, humidity is 79%. With an average temperature of 27°C (81°F), this humidity feels like a warm and sticky embrace, making travel both challenging and invigorating as the air clings to your skin, urging you to seek shade or a refreshing drink.

September Average Humidity in Bitung

This chart illustrates the average monthly humidity levels in Bitung, 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 Bitung is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%82%81%80%76%76%78%79%79%77%77%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bitung

In Bitung 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 Bitung, you can check here.

Maximum UV Index Levels in Bitung for September

The chart shows the monthly maximum UV Index (UVI) for Bitung 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 Bitung typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151617151412121414141313
Data source: Bitung 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 Bitung Compares to Other Months

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

This table compares monthly weather conditions in Bitung, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)191 mm (7.5 inches)78%extreme
February Weather27°C (81°F)148 mm (5.8 inches)82%extreme
March Weather27°C (81°F)201 mm (7.9 inches)81%extreme
April Weather28°C (82°F)186 mm (7.3 inches)80%extreme
May Weather28°C (82°F)243 mm (9.6 inches)76%extreme
June Weather27°C (81°F)300 mm (11.8 inches)76%extreme
July Weather27°C (81°F)223 mm (8.8 inches)78%extreme
August Weather27°C (81°F)114 mm (4.5 inches)79%extreme
September Weather27°C (81°F)161 mm (6.3 inches)79%extreme
October Weather28°C (82°F)127 mm (5.0 inches)77%extreme
November Weather28°C (82°F)189 mm (7.4 inches)76%extreme
December Weather28°C (82°F)173 mm (6.8 inches)77%extreme

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