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December Weather in Bukit Mertajam, Malaysia

Last updated: August 23, 2025

In Bukit Mertajam, Malaysia, the average temperature in December hovers around 28°C (82°F), with a minimum of 23°C (75°F) and a maximum reaching 33°C (92°F). Expect significant rainfall, averaging 253 mm (9.9 in) over 23 days, while the air is typically 90% humid. This climate invites both warmth and lush greenery, making it a unique destination to explore.

December Temperature in Bukit Mertajam

In December, in Bukit Mertajam, the average temperature is 28°C (82°F). The maximum can reach 33°C (92°F), while the minimum can drop to as low as 23°C (75°F). This warm climate makes Bukit Mertajam an ideal destination for travelers seeking sunny and pleasant weather.

December Weather in Bukit Mertajam: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Bukit Mertajam, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bukit Mertajam, December typically has an average temperature of 28°C (82°F), with highs reaching up to 33°C (92°F) and lows dropping to around 23°C (75°F).
JanFebMarAprMayJunJulAugSepOctNovDec828383838383838382828182
Data source: Temperature data for Bukit Mertajam 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 Bukit Mertajam

In Bukit Mertajam in December, the total precipitation amount reaches 253 mm (9.9 in) over the course of 23 days.

December Precipitation Trends in Bukit Mertajam

The chart displays monthly precipitation patterns in Bukit Mertajam, 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 Bukit Mertajam, December typically receives around 253 mm (9.9 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec155108177255299144125152270319412253
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bukit Mertajam

In Bukit Mertajam in December, humidity is 90%. With an average temperature of 28°C (82°F), this humidity feels like a heavy blanket enveloping you, making travel feel stifling and exhausting, as each step feels laborious and sweat clings to your skin.

December Average Humidity in Bukit Mertajam

This chart illustrates the average monthly humidity levels in Bukit Mertajam, 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 Bukit Mertajam is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%76%74%73%79%85%84%87%89%87%88%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bukit Mertajam

In Bukit Mertajam in December, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Bukit Mertajam.

Maximum UV Index Levels in Bukit Mertajam for December

The chart shows the monthly maximum UV Index (UVI) for Bukit Mertajam 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 Bukit Mertajam typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131415151412121314141212
Data source: Bukit Mertajam 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 Bukit Mertajam Compares to Other Months

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

This table compares monthly weather conditions in Bukit Mertajam, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (82°F)155 mm (6.1 inches)83%extreme
February Weather28°C (83°F)108 mm (4.3 inches)76%extreme
March Weather28°C (83°F)177 mm (7.0 inches)74%extreme
April Weather28°C (83°F)255 mm (10.0 inches)73%extreme
May Weather28°C (84°F)299 mm (11.8 inches)79%extreme
June Weather28°C (83°F)144 mm (5.7 inches)85%extreme
July Weather28°C (84°F)125 mm (4.9 inches)84%extreme
August Weather28°C (83°F)152 mm (6.0 inches)87%extreme
September Weather28°C (82°F)270 mm (10.6 inches)89%extreme
October Weather28°C (82°F)319 mm (12.5 inches)86%extreme
November Weather27°C (82°F)412 mm (16.2 inches)88%extreme
December Weather28°C (82°F)253 mm (9.9 inches)90%extreme

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