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December Weather in Butterworth, Malaysia

Last updated: August 23, 2025

In December, the average temperature in Butterworth, Malaysia hovers around 27°C (82°F), with minimums dropping to 25°C (77°F) and maximums reaching 31°C (88°F). Expect a considerable precipitation amount of 183 mm (7.2 in) spread over approximately 20 days, contributing to an average humidity level of 90%, creating a lush and vibrant atmosphere.

December Temperature in Butterworth

In December in Butterworth, the average temperature is 27°C (82°F). Maximums can reach 31°C (88°F), and minimums can drop to 25°C (77°F). This pleasant weather makes Butterworth an ideal destination for travelers seeking warmth and sunshine.

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

The chart illustrates December temperature patterns in Butterworth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Butterworth, December typically has an average temperature of 27°C (82°F), with highs reaching up to 31°C (88°F) and lows dropping to around 25°C (77°F).
JanFebMarAprMayJunJulAugSepOctNovDec828283828383838282828181
Data source: Temperature data for Butterworth 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 Butterworth

In Butterworth in December, the precipitation amount is 183 mm (7.2 in) during 20 days, indicating a relatively wet period.

December Precipitation Trends in Butterworth

The chart displays monthly precipitation patterns in Butterworth, 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 Butterworth, December typically receives around 183 mm (7.2 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec9968136221299162142187285291347183
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Butterworth

In Butterworth in December humidity is 90%. With an average temperature of 27°C (82°F), this humidity feels like a thick, enveloping blanket that makes traveling feel heavy and sluggish, causing you to constantly seek shade and refreshment as you navigate the sweltering air.

December Average Humidity in Butterworth

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

In Butterworth 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 Butterworth.

Maximum UV Index Levels in Butterworth for December

The chart shows the monthly maximum UV Index (UVI) for Butterworth 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 Butterworth typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131515141413121314141212
Data source: Butterworth 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 Butterworth Compares to Other Months

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

This table compares monthly weather conditions in Butterworth, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (82°F)99 mm (3.9 inches)83%extreme
February Weather28°C (82°F)68 mm (2.7 inches)76%extreme
March Weather28°C (83°F)136 mm (5.3 inches)74%extreme
April Weather28°C (83°F)221 mm (8.7 inches)73%extreme
May Weather28°C (83°F)299 mm (11.8 inches)79%extreme
June Weather28°C (83°F)162 mm (6.4 inches)85%extreme
July Weather28°C (83°F)142 mm (5.6 inches)84%extreme
August Weather28°C (83°F)187 mm (7.3 inches)87%extreme
September Weather28°C (82°F)285 mm (11.2 inches)89%extreme
October Weather28°C (82°F)291 mm (11.5 inches)86%extreme
November Weather27°C (81°F)346 mm (13.6 inches)88%extreme
December Weather27°C (82°F)183 mm (7.2 inches)90%extreme

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