December Weather in Sibu, Malaysia

Last updated: August 23, 2025

In December, the average temperature in Sibu, Malaysia reaches a warm 26°C (80°F), with a comfortable minimum of 23°C (74°F) and a high of 34°C (93°F). Expect a significant precipitation of 357 mm (14.0 in) over the course of 30 days, contributing to an average humidity level of 83%.

December Temperature in Sibu

In December in Sibu, the average temperature is 26°C (80°F). Maximum can reach 34°C (93°F) and minimum can be as low as 23°C (74°F). This makes it a perfect time for travelers to enjoy warm weather and outdoor activities.

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

The chart illustrates December temperature patterns in Sibu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sibu, December typically has an average temperature of 26°C (80°F), with highs reaching up to 34°C (93°F) and lows dropping to around 23°C (74°F).

Data source: Temperature data for Sibu generated using information from the Copernicus Climate Change Service.

December Precipitation in Sibu

In Sibu in December, the total precipitation amount is 357 mm (14.0 in) over a span of 30 days.

December Precipitation Trends in Sibu

The chart displays monthly precipitation patterns in Sibu, 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 Sibu, December typically receives around 357 mm (14.0 inches) of precipitation spread over approximately 30 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Sibu

In Sibu in December humidity is 83%. With an average temperature of 26°C (80°F), this humidity feels like a warm, enveloping blanket that can make traveling quite uncomfortable; you may find yourself needing frequent breaks for hydration and cool shade as the thick air clings to your skin.

December Average Humidity in Sibu

This chart illustrates the average monthly humidity levels in Sibu, 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 Sibu is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sibu

In Sibu 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 Sibu.

Maximum UV Index Levels in Sibu for December

The chart shows the monthly maximum UV Index (UVI) for Sibu 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 Sibu typically reaches 13, which falls under the extreme exposure category.

Data source: Sibu 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 Sibu Compares to Other Months

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

This table compares monthly weather conditions in Sibu, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	247 mm (9.7 inches)	86%	extreme
February Weather	26°C (80°F)	219 mm (8.6 inches)	87%	extreme
March Weather	27°C (80°F)	249 mm (9.8 inches)	88%	extreme
April Weather	27°C (81°F)	219 mm (8.6 inches)	83%	extreme
May Weather	27°C (82°F)	247 mm (9.7 inches)	80%	extreme
June Weather	27°C (81°F)	194 mm (7.6 inches)	80%	extreme
July Weather	27°C (81°F)	178 mm (7.0 inches)	80%	extreme
August Weather	27°C (81°F)	204 mm (8.0 inches)	82%	extreme
September Weather	27°C (80°F)	293 mm (11.5 inches)	83%	extreme
October Weather	27°C (80°F)	274 mm (10.8 inches)	81%	extreme
November Weather	27°C (80°F)	303 mm (11.9 inches)	80%	extreme
December Weather	26°C (80°F)	357 mm (14.0 inches)	83%	extreme