September Weather in Pontianak, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Pontianak, Indonesia is a warm 27°C (81°F). Expect a minimum of 23°C (74°F) and a maximum of 33°C (92°F), perfect for enjoying the outdoors. However, be prepared for occasional rain, as the area receives 193 mm (7.6 in) of precipitation over approximately 21 days. With an average humidity of 80%, it’s best to stay hydrated and embrace the tropical atmosphere!

September Temperature in Pontianak

In September in Pontianak, the average temperature is a warm 27°C (81°F). The maximum can reach a hot 33°C (92°F), while the minimum can drop to a comfortable 23°C (74°F). This makes Pontianak an ideal destination for travelers seeking pleasant weather and outdoor adventures.

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

The chart illustrates September temperature patterns in Pontianak, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pontianak, September typically has an average temperature of 27°C (81°F), with highs reaching up to 33°C (92°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec808081818181818180808080
Data source: Temperature data for Pontianak 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 Pontianak

In Pontianak in September, the precipitation amount is 193 mm (7.6 in) spread over 21 days.

September Precipitation Trends in Pontianak

The chart displays monthly precipitation patterns in Pontianak, 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 Pontianak, September typically receives around 193 mm (7.6 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec183173217257283198189172193332326312
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Pontianak

In Pontianak 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 Pontianak

This chart illustrates the average monthly humidity levels in Pontianak, 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 Pontianak 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 Pontianak

In Pontianak 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 Pontianak, you can check here.

Maximum UV Index Levels in Pontianak for September

The chart shows the monthly maximum UV Index (UVI) for Pontianak 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 Pontianak typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516151412121414141313
Data source: Pontianak 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 Pontianak Compares to Other Months

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

This table compares monthly weather conditions in Pontianak, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)183 mm (7.2 inches)85%extreme
February Weather27°C (80°F)173 mm (6.8 inches)85%extreme
March Weather27°C (81°F)216 mm (8.5 inches)85%extreme
April Weather27°C (81°F)257 mm (10.1 inches)82%extreme
May Weather27°C (81°F)283 mm (11.2 inches)79%extreme
June Weather27°C (81°F)198 mm (7.8 inches)80%extreme
July Weather27°C (81°F)189 mm (7.4 inches)80%extreme
August Weather27°C (81°F)172 mm (6.8 inches)83%extreme
September Weather27°C (81°F)193 mm (7.6 inches)80%extreme
October Weather27°C (80°F)331 mm (13.0 inches)81%extreme
November Weather27°C (80°F)326 mm (12.8 inches)79%extreme
December Weather27°C (80°F)312 mm (12.3 inches)82%extreme

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