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December Weather in Pekanbaru, Indonesia

Last updated: August 23, 2025

In December, the average temperature in Pekanbaru, Indonesia reaches a warm 27°C (81°F). Expect lows of 23°C (74°F) and highs of 34°C (94°F), making it a perfect time for summer activities. However, be prepared for substantial rainfall, with 233 mm (9.2 in) expected over 25 days, resulting in an average humidity of 89%. Stay hydrated and plan accordingly!

December Temperature in Pekanbaru

In December in Pekanbaru, the average temperature is 27°C (81°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop to as low as 23°C (74°F). This mild climate makes Pekanbaru an ideal destination for travelers seeking a warm getaway.

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

The chart illustrates December 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, December typically has an average temperature of 27°C (81°F), with highs reaching up to 34°C (94°F) and lows dropping to around 23°C (74°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.

December Precipitation in Pekanbaru

In Pekanbaru in December, the total precipitation amount reaches 233 mm (9.2 in) over the course of 25 days.

December Precipitation Trends in Pekanbaru

The chart displays monthly precipitation patterns in Pekanbaru, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Pekanbaru, December typically receives around 233 mm (9.2 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec149132227263256159112132188217306233
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Pekanbaru

In Pekanbaru in December 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.

December Average Humidity in Pekanbaru

This chart illustrates the average monthly humidity levels in Pekanbaru, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, 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 December generated using information from the Copernicus Climate Change Service.

December UV Index in Pekanbaru

In Pekanbaru in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Pekanbaru.

Maximum UV Index Levels in Pekanbaru for December

The chart shows the monthly maximum UV Index (UVI) for Pekanbaru in December, 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 December, the maximum UV index in Pekanbaru typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131515151412121414141313
Data source: Pekanbaru December 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 December 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 December’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 December’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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