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September Weather in Pekanbaru, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Pekanbaru, Indonesia hovers around 27°C (81°F), creating a warm and inviting atmosphere. Expect minimums of 22°C (72°F) and maximums reaching 34°C (94°F), providing a delightful range for outdoor activities. However, be prepared for some rain, as the area sees an average precipitation of 188 mm (7.4 in) over 24 days. With an average humidity of 89%, staying hydrated is key!

September Temperature in Pekanbaru

In September in Pekanbaru, the average temperature is 27°C (81°F), with maximums reaching 34°C (94°F) and minimums dipping to 22°C (72°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Pekanbaru, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pekanbaru, September typically has an average temperature of 27°C (81°F), with highs reaching up to 34°C (94°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec808181818282818281818180
Data source: Temperature data for Pekanbaru 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 Pekanbaru

In Pekanbaru in September, the precipitation amount is 188 mm (7.4 in) spread over a duration of 24 days.

September Precipitation Trends in Pekanbaru

The chart displays monthly precipitation patterns in Pekanbaru, 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 Pekanbaru, September typically receives around 188 mm (7.4 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec149132227263256159112132188217306233
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Pekanbaru

In Pekanbaru in September humidity is 89%. With an average temperature of 27°C (81°F), this humidity feels like a wet blanket enveloping you, making outdoor activities challenging and travel a little less comfortable.

September Average Humidity in Pekanbaru

This chart illustrates the average monthly humidity levels in Pekanbaru, 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 Pekanbaru is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%81%82%84%87%88%88%90%89%90%90%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Pekanbaru

In Pekanbaru 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 Pekanbaru, you can check here.

Maximum UV Index Levels in Pekanbaru for September

The chart shows the monthly maximum UV Index (UVI) for Pekanbaru 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 Pekanbaru typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131515151412121414141313
Data source: Pekanbaru 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 Pekanbaru Compares to Other Months

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

This table compares monthly weather conditions in Pekanbaru, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)149 mm (5.8 inches)87%extreme
February Weather27°C (81°F)132 mm (5.2 inches)81%extreme
March Weather27°C (81°F)227 mm (8.9 inches)82%extreme
April Weather27°C (82°F)263 mm (10.3 inches)84%extreme
May Weather28°C (82°F)256 mm (10.1 inches)87%extreme
June Weather28°C (82°F)159 mm (6.2 inches)88%extreme
July Weather27°C (82°F)112 mm (4.4 inches)88%extreme
August Weather28°C (82°F)132 mm (5.2 inches)90%extreme
September Weather27°C (81°F)188 mm (7.4 inches)89%extreme
October Weather27°C (81°F)217 mm (8.6 inches)90%extreme
November Weather27°C (81°F)306 mm (12.0 inches)90%extreme
December Weather27°C (81°F)233 mm (9.2 inches)89%extreme

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