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September Weather in Ketapang, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Ketapang, Indonesia reaches a warm 27°C (81°F), with lows dipping to 24°C (75°F) and highs peaking at 30°C (87°F). Expect around 184 mm (7.2 in) of precipitation over 17 days, contributing to the region's 80% humidity. Enjoy the vibrant atmosphere but be prepared for occasional rain!

September Temperature in Ketapang

In September in Ketapang, the average temperature is 27°C (81°F), with maximums reaching 30°C (87°F) and minimums dropping to as low as 24°C (75°F). This comfortable climate makes Ketapang an ideal destination for travelers seeking enjoyable weather.

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

The chart illustrates September temperature patterns in Ketapang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ketapang, September typically has an average temperature of 27°C (81°F), with highs reaching up to 30°C (87°F) and lows dropping to around 24°C (75°F).
JanFebMarAprMayJunJulAugSepOctNovDec818181818281818180818180
Data source: Temperature data for Ketapang 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 Ketapang

In Ketapang in September, the precipitation amount is 184 mm (7.2 in) over the course of 17 days.

September Precipitation Trends in Ketapang

The chart displays monthly precipitation patterns in Ketapang, 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 Ketapang, September typically receives around 184 mm (7.2 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec273227256292262167131100184265367408
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ketapang

In Ketapang in September humidity is 80%. With an average temperature of 27°C (81°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making travel tiring as sweat beads form quickly and the air feels thick and heavy.

September Average Humidity in Ketapang

This chart illustrates the average monthly humidity levels in Ketapang, 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 Ketapang is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%82%79%80%80%83%80%81%79%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ketapang

In Ketapang 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 Ketapang.

Maximum UV Index Levels in Ketapang for September

The chart shows the monthly maximum UV Index (UVI) for Ketapang 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 Ketapang typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516151412121315151413
Data source: Ketapang 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 Ketapang Compares to Other Months

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

This table compares monthly weather conditions in Ketapang, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)273 mm (10.7 inches)85%extreme
February Weather27°C (81°F)227 mm (8.9 inches)85%extreme
March Weather27°C (81°F)256 mm (10.1 inches)85%extreme
April Weather27°C (82°F)292 mm (11.5 inches)82%extreme
May Weather28°C (82°F)262 mm (10.3 inches)79%extreme
June Weather27°C (82°F)167 mm (6.6 inches)80%extreme
July Weather27°C (81°F)131 mm (5.2 inches)80%extreme
August Weather27°C (81°F)100 mm (3.9 inches)83%extreme
September Weather27°C (81°F)184 mm (7.2 inches)80%extreme
October Weather27°C (81°F)265 mm (10.4 inches)81%extreme
November Weather27°C (81°F)367 mm (14.4 inches)79%extreme
December Weather27°C (81°F)408 mm (16.1 inches)82%extreme

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