December Weather in Mersing, Malaysia

Last updated: August 21, 2025

In Mersing, Malaysia, December brings a tropical vibe characterized by warm temperatures and vibrant humidity. The maximum temperature hovers around 32°C (89°F), with an average of 27°C (80°F), making it a warm month overall. Overnight, the temperature can dip to a minimum of 24°C (75°F), ensuring comfortable evenings. However, anticipate significant rainfall, as the region receives approximately 310 mm (12.2 in) of precipitation over 28 days, drenching the landscape. With an humidity level of 88%, the air feels notably damp, contributing to the lush greenery that defines Mersing during this season.

December Temperature in Mersing

In December, Mersing, Malaysia experiences a delightful tropical climate, with temperatures reflecting the warmth characteristic of the region. The minimum temperature hovers around 24°C (75°F), while the average rests comfortably at 27°C (80°F), ensuring pleasant days for outdoor activities. The maximum temperatures peak at around 32°C (89°F), inviting visitors to bask in the sun or explore the stunning beaches. This month marks a continuation of the consistent weather trends observed throughout the year, where the temperatures remain relatively stable, offering warmth and a slight cooling effect as the year draws to a close. December's mild conditions make it an ideal time for travelers seeking both adventure and relaxation in this picturesque coastal town.

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

The chart illustrates December temperature patterns in Mersing, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mersing, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec808081828282818181818080
Data source: Temperature data for Mersing generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Mersing

In December, Mersing, Malaysia, experiences a significant amount of rainfall, receiving 310 mm (12.2 in) over approximately 28 days. This precipitation level mirrors the January totals, indicating a continuation of the wet season characteristic of this coastal region. Notably, December's rainfall is part of a downward trend from the more intense deluge of November, which recorded 355 mm (14.0 in). The increased number of rainy days in both November and December hints at the persistent moisture in the air, contributing to the lush landscapes that define Mersing during this time of year. While the rainfall remains substantial, the slight reduction compared to the previous month signals the gradual transition away from the heaviest showers of the season.

December Precipitation Trends in Mersing

The chart displays monthly precipitation patterns in Mersing, 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 Mersing, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec310109160189206179146151204238355310
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Mersing

December in Mersing, Malaysia, brings a notable increase in humidity, reaching 88%, which is the highest for the year. This peak forms part of a discernible trend where humidity levels tend to rise towards the end of the year, after a slight dip in April to 76%. Throughout the months, fluctuations remain modest, with values hovering between 81% to 86% from January to November. However, as the year draws to a close, the elevating December humidity heralds the onset of the wetter season, wrapping up the year with a distinctly tropical atmosphere. This seasonal shift underscores Mersing's characteristic climate, where high humidity is a staple, particularly in the final month of the year.

December Average Humidity in Mersing

This chart illustrates the average monthly humidity levels in Mersing, 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 Mersing is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%81%82%76%81%82%83%85%85%84%84%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mersing

In December, Mersing, Malaysia, continues to experience extreme UV Index levels with a reading of 13, maintaining the trend observed throughout the year. This consistent intensity means outdoor enthusiasts should still exercise caution, as the burn time remains a swift 10 minutes. In fact, from January to December, the UV Index has fluctuated only slightly, peaking at 16 in March and staying within the 12 to 16 range, which signals a sustained focus on sun safety. As the year winds down, it’s essential to remain aware of these UV levels, especially with several months classified under the extreme exposure category. For more detailed insights on UV conditions year-round, check out Mersing UV Index.

Maximum UV Index Levels in Mersing for December

The chart shows the monthly maximum UV Index (UVI) for Mersing 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 Mersing typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131516151412121414141313
Data source: Mersing 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.

December Sunshine in Mersing

In December, Mersing, Malaysia, basks in a delightful average of 288 hours of sunshine, contributing to the area's charm as a perfect getaway destination. As the year draws to a close, the sunlit days reflect a consistent trend, with sunshine hours maintaining a steady presence since mid-year. July and August shine brightest, offering over 310 hours each, while December carries the warmth of the sun into the festive season, subtly lower than the peak months yet still generous. This gradual ebb and flow of sunlight encapsulates the tropical allure of Mersing, making it an inviting spot even as the dry season approaches, where early mornings and late afternoons are especially glorious under the golden rays.

Monthly Sunshine Duration in Mersing: December Highlighted

The December sunshine duration represents the total number of hours Mersing experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec228h298h325h297h298h293h312h310h295h293h252h288h
Data source: Mersing December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mersing During December

In Mersing, Malaysia, the likelihood of sunny weather in December is quite low, with only a 7% chance of sunshine. This trend is consistent with the preceding months, particularly November, which records an even lower 8% chance. As the year progresses towards the end, the chances of encountering sunny days drop significantly, especially compared to the brighter months of April and September, which boast 28% and 26% chances, respectively. The overall pattern suggests that while Mersing enjoys sunnier spells earlier in the year, December tends to usher in cooler and cloudier weather, making it less favorable for sun-seekers.

Percentage of Sunny Days in December in Mersing

The chart illustrates the percentage of sunny days in Mersing throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Mersing experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec6%21%22%28%18%20%13%16%26%17%8%7%
Data source: Mersing December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mersing in December

In Mersing, Malaysia, the daylight duration exhibits a rhythmic pattern throughout the year, characterized by a gradual transition between longer and shorter days. Starting off the year in January with approximately 11 hours of daylight, the duration steadily increases to a peak of 12 hours from February through October. This consistent twelve-hour span offers a delightful balance of day and night, perfect for outdoor activities and exploration. As the year draws to a close, November brings a slight reduction back to 11 hours, continuing into December. This cyclical variation not only highlights the region’s tropical climate but also provides residents and visitors alike with a captivating juxtaposition of light and darkness throughout the year.

Average Daylight Hours in Mersing for December

The chart illustrates the variation in daylight duration in Mersing throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 59m12h 1m12h 5m12h 9m12h 12m12h 14m12h 13m12h 10m12h 6m12h 2m11h 59m11h 58m
Data source: Mersing daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Mersing

In December, Mersing, Malaysia experiences a refreshing breeze with an average wind speed of 4.1 m/s (9 mph), marking a noticeable increase from the previous months. This rise in wind speed serves as a gentle reminder of the year's end, contrasting sharply with the calmer conditions prevalent from April to November, when winds often languished around 2.0 to 2.6 m/s (4 to 6 mph). Notably, December’s winds approach the levels seen earlier in the year, particularly in January when average speeds reach 4.9 m/s (11 mph). This trend underscores a dynamic shift as the year concludes, inviting both locals and travelers to embrace the invigorating chill that accompanies the festive season in this coastal paradise.

Average December Wind Speed in Mersing

The chart displays monthly wind speed patterns in Mersing, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.94.73.22.01.92.12.62.42.32.32.04.1 m/s
Data source: Mersing December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Mersing Compares to Other Months

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

December and January share similar average temperatures, hovering around 27°C (80°F), but exhibit slight differences in their temperature extremes and precipitation patterns. December tends to have a slightly higher minimum temperature of 24°C (75°F) compared to January's 23°C (73°F), while both months peak at 32°C (89°F in December and 91°F in January). Precipitation levels remain consistent at 310 mm (12.2 in) for both months; however, December experiences rain on more days (28 days) than January (21 days), leading to slightly drier conditions in January. Overall, both months feature high humidity, with December at 88% and January at 86%. For more specific details, you can check Mersing weather in January.

In December, temperatures in the region range from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), with an average of 27°C (80°F). This month is characterized by high humidity at 88% and substantial rainfall totaling 310 mm (12.2 in) over 28 days. In contrast, February maintains similar temperature ranges with a minimum of 24°C (75°F) and an average of 27°C (80°F), but the maximum drops slightly to 31°C (87°F). Notably, February experiences significantly less rainfall, totaling only 109 mm (4.3 in) across 17 days, and lower humidity at 81%. For a more detailed look at February's climate, you can visit Mersing weather in February.

In December, the weather in Mersing features a warm temperature range with minimums around 24°C (75°F) and maximums peaking at 32°C (89°F). However, it is also marked by high precipitation levels, totaling approximately 310 mm (12.2 in) over 28 days, accompanied by high humidity at 88%. In contrast, March shows a similar temperature profile with minimums at 24°C (76°F) and maximums reaching 32°C (90°F), but with significantly reduced rainfall of 160 mm (6.3 in) spread across just 20 days, along with slightly lower humidity at 82%. For a closer look at the March conditions, visit Mersing weather in March.

December and April present contrasting weather conditions, despite having similar minimum temperatures around 24°C (75°F). In December, the average temperature is slightly cooler at 27°C (80°F) with maximums reaching 32°C (89°F). This month experiences significantly higher precipitation, averaging 310 mm (12.2 in) over 28 days, coupled with a high humidity level of 88%. In contrast, April sees warmer averages at 28°C (82°F) and peaks of 33°C (91°F), but with much less rainfall of 189 mm (7.5 in) spread over 26 days and a drop in humidity to 76%. For more details on April weather, check out Mersing weather in April.

December and May display noticeable differences in weather patterns despite similar temperature ranges. In December, the average temperature is slightly lower at 27°C (80°F), compared to May's average of 28°C (83°F). However, December is characterized by higher humidity at 88% and significantly more precipitation, totaling 310 mm over 28 days, making it a wetter month. In contrast, May experiences less rainfall at 206 mm, spread over 29 days, and a slightly lower humidity level of 81%. This distinction highlights December's rainy conditions while May offers a relatively drier atmosphere. For more detailed insights into May weather, you can visit Mersing weather in May.

In December, the weather in Mersing features slightly cooler average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), with an average of 27°C (80°F). However, it experiences significantly higher precipitation, with 310 mm (12.2 in) spread over 28 days and a humidity level of 88%. In contrast, June offers a bit more warmth, with an average temperature of 28°C (82°F), while the maximum still reaches 32°C (91°F) and the minimum remains at 24°C (75°F). The rainfall in June is much less at 179 mm (7.0 in) over 27 days, accompanied by a lower humidity of 82%. For more details on the weather in June, check out Mersing weather in June.

December and July present a strikingly similar temperature range, with both months recording minimum temperatures of 24°C (75°F) and average temperatures hovering around 27°C (80°F). However, July is slightly warmer on average, peaking at 32°C (90°F) compared to December's maximum of 32°C (89°F). In terms of precipitation, December experiences significantly more rainfall, totaling 310 mm (12.2 in) over 28 days, while July sees just 146 mm (5.7 in) across 26 days of rain. Humidity levels also differ slightly, with December being more humid at 88% compared to July's 83%. For a closer look at July's weather, you can refer to Mersing weather in July.

In December, the weather closely mirrors that of August, with minimum temperatures around 24°C (75°F) and average highs reaching 32°C (89°F). However, December experiences significantly more rainfall, totaling 310 mm (12.2 in) spread over 28 days, compared to August's 150 mm (5.9 in) over 27 days. Additionally, December's humidity is slightly higher at 88%, compared to August's 85%. For more detailed information, you can check Mersing weather in August.

In December, the weather is quite reminiscent of September, with both months showing a minimum temperature of 24°C (75°F) and an average temperature of 27°C (80°F). However, December tends to see slightly higher maximum temperatures, reaching up to 32°C (89°F), compared to September’s peak of 32°C (90°F). The notable difference lies in the precipitation levels; December experiences more rainfall, with 310 mm (12.2 in) spread over 28 days, compared to September's 204 mm (8.0 in) over 26 days. Additionally, December's humidity is slightly higher at 88%, versus September's 85%. For more specific details about September weather, you can check Mersing weather in September.

In comparing the weather of December and October, both months exhibit similar temperature ranges, with December’s temperatures ranging from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), while October slightly edges higher with a maximum of 33°C (92°F). Average temperatures hover around 27°C (80°F) in both months. However, December experiences significantly more precipitation, totaling 310 mm (12.2 in) over 28 days, compared to October's 238 mm (9.4 in) across 26 days. Additionally, December features higher humidity levels at 88%, compared to October's 84%. For more detailed information, check out Mersing weather in October.

In comparing the weather between December and November, both months exhibit similar temperature ranges, with minimums around 24°C (75°F), averages at 27°C (80°F), and maximums reaching 32°C (89°F). However, December experiences slightly less precipitation, totaling 310 mm (12.2 in) across 28 days, compared to November's higher rainfall of 355 mm (14.0 in) over 29 days. Moreover, December is characterized by a higher humidity level at 88%, compared to November's 84%. To explore more about the weather specifics in November, you can check Mersing weather in November.

Compare Mersing's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Mersing

As December settles in Mersing, the weather presents a notably humid atmosphere, with high humidity levels reaching 88% that can feel quite intense especially during the day. Temperatures hover around a mild average, but what truly sets this month apart is the consistent rainfall, with nearly every day seeing precipitation. This significant increase in wet days compared to other months creates a lush environment but may also encourage travelers to embrace their waterproof gear. Despite the warmth, Mersing’s December is defined by its intriguing blend of warmth and moisture, perfect for those who enjoy the tropical ambiance. For more insights on what to expect throughout the year, check out Mersing Climate.