December Weather in Bangkok, Thailand

Last updated: August 27, 2025

December in Bangkok, Thailand brings a delightful blend of warm temperatures and occasional respite from rain. With maximums reaching 35°C (95°F) and an average temperature of 27°C (80°F), the city enjoys a tropical climate that's perfect for exploring. Nights cool down to a comfortable minimum of 15°C (59°F), providing a pleasant atmosphere. Although precipitation is minimal, totaling just 24 mm (0.9 in) over about two days, humidity lingers at 70%, enhancing the tropical feel. Visitors can expect a vibrant city alive with festive spirit amid the warm December days.

December Temperature in Bangkok

In Bangkok, Thailand, December marks a delightful shift in temperatures as the city transitions from the hotter months. With minimums dropping to 15°C (59°F) and average highs around 27°C (80°F), the weather becomes noticeably cooler and more comfortable for exploring. Despite this seasonal respite, the maximum temperatures can still reach 35°C (95°F), ensuring that warm days linger on. What stands out is the gradual cooling trend from November's 21°C (70°F) low, making December an ideal time for tourists to enjoy the vibrant culture and bustling streets of Bangkok without the oppressive heat often felt in the preceding months.

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

The chart illustrates December temperature patterns in Bangkok, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bangkok, 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).
JanFebMarAprMayJunJulAugSepOctNovDec808285868686858584838280
Data source: Temperature data for Bangkok 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 Bangkok

In December, Bangkok experiences a noticeable dip in precipitation, with an average of 24 mm (0.9 in) over just two days of rain. This marks a significant decline from the wettest months of the year, such as September and October, which see rainfall figures soaring above 200 mm. The transition from the heavy monsoon rains of late summer to the drier conditions of winter is evident, as December ushers in a more comfortable climate for residents and visitors alike. With fewer rainy days, the festive month is often embraced for outdoor activities and celebrations, providing a pleasant reprieve from the season's earlier downpours.

December Precipitation Trends in Bangkok

The chart displays monthly precipitation patterns in Bangkok, 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 Bangkok, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec2914441071421121591632452506124
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Bangkok

In December, Bangkok experiences a notable shift in humidity, with levels averaging around 70%. This decrease from the peak wet months that precede it—marked by a dramatic rise from 70% in April to a high of 88% in August—indicates the tail end of the monsoon season. While still humid compared to many regions, December’s relative reduction offers a welcome respite after a sweltering summer and a rainy fall, making it a more comfortable time for both residents and travelers alike. As the year wraps up, one can appreciate the transition from the muggy days of summer toward a more pleasant, albeit still humid, atmosphere in Bangkok.

December Average Humidity in Bangkok

This chart illustrates the average monthly humidity levels in Bangkok, 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 Bangkok is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%58%61%70%80%85%86%88%87%83%78%70%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bangkok

In December, the UV Index in Bangkok, Thailand, averages 8, placing it in the very high exposure category, with a burn time of about 15 minutes. As the year wraps up, there's a slight easing from the extreme levels seen in the summer months, which peaked at 14 in both March and August. However, despite the drop, visitors should remain cautious, as December still presents substantial sun exposure risks. This month’s UV Index aligns more closely with January and November, indicating a seasonal trend where late fall and early winter bring relatively high UV levels. Protecting your skin is essential, even during this cooler period—stay informed by checking the latest updates at Bangkok UV Index.

Maximum UV Index Levels in Bangkok for December

The chart shows the monthly maximum UV Index (UVI) for Bangkok 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 Bangkok typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1012141314131414131298
Data source: Bangkok 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 Bangkok

December marks a delightful transition into the heart of winter for many, but in Bangkok, the city basks in a generous 316 hours of sunshine. This abundant sunlight caps off a year characterized by fluctuating daylight hours; the months from January to March witness a steady increase, peaking in March at 336 hours. After a slight dip in April and May, sunshine hours gently decline, reaching a low in September with 268 hours. However, the sun reignites in December, offering a warmth that invites locals and travelers alike to enjoy the city's vibrant culture and stunning sights. As the year wraps up, it’s clear that Bangkok’s December sunshine creates a perfect backdrop for exploration and celebration.

Monthly Sunshine Duration in Bangkok: December Highlighted

The December sunshine duration represents the total number of hours Bangkok 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.
JanFebMarAprMayJunJulAugSepOctNovDec251h299h336h322h321h302h290h280h268h287h294h316h
Data source: Bangkok December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bangkok During December

In December, Bangkok experiences a 63% chance of sunny weather, making it one of the more favorable months for sunshine compared to the preceding weeks. This marks a noticeable increase from the 29% likelihood seen in November, signaling a shift toward clearer skies as the city transitions into its cooler, drier season. Although the sun’s presence diminishes significantly from April through August, with probabilities plummeting as low as 9%, December stands out as a beacon of light amidst the gloom of the rainy months. Travelers can look forward to mostly sunny days, creating an inviting atmosphere for exploring the vibrant city.

Percentage of Sunny Days in December in Bangkok

The chart illustrates the percentage of sunny days in Bangkok 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 Bangkok experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec58%76%57%18%33%17%11%9%10%14%29%63%
Data source: Bangkok December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bangkok in December

As December rolls into Bangkok, the city enjoys 11 hours of daylight, mirroring the shorter days of January and February. This three-month period reveals a slight retreat from the longer daylight hours seen earlier in the year. From March through September, daylight peaks at 12 hours, creating an inviting atmosphere that encourages outdoor activities under the warm Thai sun. However, as the year draws to a close, the daylight duration returns to its winter pattern, reminding us of the cyclical nature of time in this vibrant city. The consistent rhythm of sunlight, whether a bit longer or shorter, enhances Bangkok's charm, inviting both locals and tourists to savor its rich culture throughout the year.

Average Daylight Hours in Bangkok for December

The chart illustrates the variation in daylight duration in Bangkok throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 24m11h 40m12h 2m12h 25m12h 45m12h 54m12h 49m12h 33m12h 11m11h 48m11h 28m11h 19m
Data source: Bangkok daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Bangkok

As the year draws to a close, December in Bangkok brings a gentle caress of wind, with an average speed of 2.6 m/s (6 mph). This slight uptick in wind speed compared to the previous months suggests a transition into the cooler dry season, contributing to a more comfortable atmosphere for both residents and visitors. Throughout the year, wind patterns show variability, peaking in March and June at 3.0 m/s (7 mph), while the hottest months of April see a decrease to 1.9 m/s (4 mph). December's breezy conditions might just be the perfect backdrop for exploring the city's vibrant streets, as it adds a refreshing element to the rich tapestry of Bangkok's bustling life.

Average December Wind Speed in Bangkok

The chart displays monthly wind speed patterns in Bangkok, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.43.01.92.43.02.72.62.02.02.22.6 m/s
Data source: Bangkok December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Bangkok Compares to Other Months

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

In December, the weather in Bangkok typically features temperatures ranging from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), with an average temperature of 27°C (80°F). The month experiences light precipitation, totaling 24 mm (0.9 in) over just 2 days, coupled with a humidity level of 70%.

In contrast, January sees a slight increase in the minimum temperature, reaching 16°C (61°F), while the average remains stable at 27°C (81°F), and the maximum temperature dips slightly to 35°C (94°F). Rainfall increases marginally to 29 mm (1.1 in) spread over 3 days, but humidity decreases to a more comfortable 59%. This makes January a seasonally drier month compared to December. For further details, visit Bangkok weather in January.

December in Bangkok typically features warm temperatures ranging from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), with an average temperature of 27°C (80°F). The month experiences relatively low precipitation at 24 mm (0.9 in) over just 2 days, accompanied by a humidity level of 70%. In contrast, February sees slightly higher minimum temperatures, starting at 19°C (66°F), while the average temperature remains close at 28°C (82°F). The maximum temperature peaks at 35°C (96°F) and precipitation decreases to 14 mm (0.5 in) spread over 3 days, with humidity dropping to 58%. For more detailed information about the weather in February, visit Bangkok weather in February.

December and March exhibit distinct weather characteristics. In December, temperatures range from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), with an average of 27°C (80°F). The month experiences relatively low precipitation, totaling 24 mm (0.9 in) over just 2 days, accompanied by higher humidity at 70%. In contrast, March sees higher temperatures, with a minimum of 22°C (72°F) and a maximum of 37°C (99°F), averaging around 30°C (86°F). Precipitation also increases in March, reaching 44 mm (1.7 in) over 5 days, but the humidity is lower at 61%. For a detailed look at the weather patterns, visit Bangkok weather in March.

In December, the weather is generally warmer with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), accompanied by relatively low precipitation of only 24 mm (0.9 in) over about 2 days. The humidity remains consistent at 70%, contributing to a warm and pleasant atmosphere. In contrast, April sees higher temperatures, with a minimum of 21°C (70°F) and a maximum reaching up to 38°C (100°F), along with significantly increased rainfall totaling 107 mm (4.2 in) over 12 days. This combination of higher temperatures and increased precipitation creates a more humid environment, typical for this time of year. For more detailed information, you can check Bangkok weather in April.

In December, the weather is generally warm and drier, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), accompanied by just 24 mm (0.9 in) of precipitation over about 2 days. The humidity levels hover around 70%, making it feel quite comfortable. In contrast, May experiences significantly higher temperatures, with a minimum of 23°C (74°F) and a scorching maximum of 40°C (103°F). This month sees a substantial increase in rainfall, totaling 142 mm (5.6 in) spread over 19 days, and the humidity rises to 80%, contributing to a more oppressive and humid atmosphere. For a detailed overview of weather conditions specific to this month, visit Bangkok weather in May.

When comparing the weather in December and June, it's evident that both months bring unique climatic conditions. December typically enjoys warm temperatures, with a minimum of 15°C (59°F) and an average of 27°C (80°F), peaking at 35°C (95°F). The month experiences relatively low precipitation, with only 24 mm (0.9 in) over just two days, and the humidity stands at a comfortable 70%.

In contrast, June is considerably warmer and more humid, featuring minimum temperatures of 25°C (78°F) and an average of 30°C (86°F), reaching maximums of 37°C (99°F). This month is characterized by significant rainfall, accumulating 112 mm (4.4 in) over 22 days, and higher humidity levels at 85%. For more detailed insights on June's weather, you can check Bangkok weather in June.

In December, the weather in Bangkok is warmer and drier, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), and an average temperature of 27°C (80°F). The month experiences only 24 mm (0.9 in) of precipitation over just 2 days, along with a humidity level of 70%. In contrast, July is significantly hotter and wetter, with minimum temperatures at 25°C (78°F), an average of 29°C (85°F), and maximums reaching 37°C (99°F). The city receives substantial rainfall, totaling 159 mm (6.2 in) over 26 days, and humidity levels rise to 86%. For more details on July weather, visit Bangkok weather in July.

December and August present contrasting weather patterns in Bangkok. December enjoys milder temperatures, with average highs around 27°C (80°F) and only about 24 mm (0.9 in) of precipitation spread over just 2 days, leading to a more comfortable humidity level of 70%. In stark contrast, August typically experiences warmer conditions, with averages peaking at 29°C (85°F) and maximums reaching up to 37°C (99°F). Additionally, August is marked by heavy rainfall, accumulating 163 mm (6.4 in) over 23 days, resulting in higher humidity levels of 88%. For more details, check out Bangkok weather in August.

When comparing the weather in December and September, it's evident that September is significantly wetter and more humid. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 36°C (97°F), with an average of 29°C (84°F) and a staggering 245 mm (9.6 in) of rainfall over 24 days, leading to a humidity level of 87%. In contrast, December enjoys warmer minimum temperatures of 15°C (59°F) and reaches an average of 27°C (80°F) with a maximum of 35°C (95°F). The month is much drier, receiving only 24 mm (0.9 in) of precipitation across just 2 days and maintaining a lower humidity level of 70%. For more detailed information, you can check out Bangkok weather in September.

In comparing the weather between October and December, December features milder temperatures, with a minimum of 15°C (59°F) and an average of 27°C (80°F), while October has warmer averages, ranging from a minimum of 23°C (74°F) to an average of 29°C (84°F). Additionally, December experiences significantly less rainfall, with only 24 mm (0.9 in) over 2 days, compared to October's substantial precipitation of 250 mm (9.9 in) over 21 days. Humidity levels are also lower in December at 70%, in contrast to October’s higher humidity of 83%. For more detailed insights, you can check Bangkok weather in October.

In comparing the weather of December to November, we see notable differences. While both months have similar maximum temperatures peaking at 35°C (95°F), December boasts a lower minimum temperature of 15°C (59°F) compared to November's 21°C (70°F). Additionally, December experiences significantly less precipitation, with only 24 mm (0.9 in) over just 2 days, as opposed to November's 61 mm (2.4 in) across 9 days. Humidity levels are also slightly lower in December at 70%, compared to November's 78%. For more detailed insights into November weather, you can visit Bangkok weather in November.

Compare Bangkok's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Bangkok

As December settles over Bangkok, the city experiences a delightful shift in weather compared to the sweltering months that precede it. With cooler temperatures averaging around 27°C (80°F) and low humidity levels at 70%, this month offers a refreshing reprieve, making it an ideal time for outdoor exploration. Rainfall remains minimal, with only a couple of days of light precipitation, allowing visitors and locals alike to fully enjoy the festive atmosphere. For those interested in understanding the nuances of Bangkok's weather patterns, December is a month that beautifully balances warmth with comfortable conditions. Discover more about the city's climate in detail at Bangkok Climate.