December Weather in Goyang-si, South Korea

Last updated: October 30, 2025

In December, Goyang-si, South Korea experiences a chilly yet intriguing winter atmosphere. With maximum temperatures peaking at 12°C (54°F) and plummeting to a minimum of -16°C (4°F), residents and visitors can expect a diverse temperature range. The average temperature hovers around -1°C (31°F), creating a crisp winter environment. Precipitation is moderate, totaling 20 mm (0.8 in) over the month, falling on approximately 4 days, contributing to the season's charm. The humidity level remains high at 74%, bringing a unique moisture to the cold air, making December in Goyang-si both a fascinating and chilly experience.

December Temperature in Goyang-si

In December, Goyang-si, South Korea, experiences a significant climate shift as winter firmly sets in. The temperatures drop sharply, with minimums reaching as low as -16°C (4°F) and average temperatures hovering around -1°C (31°F). Despite the chill, daytime highs can still reach a mild 12°C (54°F), offering occasional respite from the cold. This month marks a notable departure from the milder temperatures of November, where the average was 7°C (44°F), emphasizing the transition into the heart of winter. As the year draws to a close, Goyang-si becomes enveloped in a crisp, cold atmosphere, inviting residents and visitors alike to embrace the season's beauty.

December Weather in Goyang-si: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Goyang-si, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Goyang-si, December typically has an average temperature of -1°C (31°F), with highs reaching up to 12°C (54°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec273144546472798070584430
Data source: Temperature data for Goyang-si 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 Goyang-si

In Goyang-si, South Korea, December typically experiences a mild level of precipitation, with an average total of 20 mm (0.8 in) over 4 days of rainfall. This marks a slight decrease compared to the wetter months leading up to December, particularly from July to September, when cumulative rainfall often exceeded 200 mm. The month serves as a transition into winter, characterized by a notable dip in both precipitation and rainy days, following a peak in the summer. As the year closes, the weather becomes drier, providing a contrast to the lush, rain-soaked landscape of the preceding summer months. This trend highlights a clear seasonal shift, with December's modest rainfall underscoring the more severe winter conditions that loom ahead.

December Precipitation Trends in Goyang-si

The chart displays monthly precipitation patterns in Goyang-si, 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 Goyang-si, December typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec1921435211279217262135594720
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Goyang-si

In Goyang-si, South Korea, humidity levels exhibit a notable seasonal pattern throughout the year. Beginning in January at a relatively comfortable 71%, the humidity dips to 65% in both February and March, providing a brief respite before the onset of spring. As the temperature warms, humidity begins to rise significantly; by May, it reaches 81%, indicating the warmth's embrace. The summer months reach their peak with July and August sharing a steamy 91%, enveloping the city in a damp embrace. As autumn unfolds, humidity gradually decreases, dropping to 77% in September and settling at 74% in December. This month marks a transition, as cooler temperatures slowly inch closer, yet it still retains a certain humidity that lingers from the summer, perfectly encapsulating the unique climate of Goyang-si.

December Average Humidity in Goyang-si

This chart illustrates the average monthly humidity levels in Goyang-si, 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 Goyang-si is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%65%65%75%81%85%91%91%77%79%80%74%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Goyang-si

As December rolls into Goyang-si, South Korea, the UV Index drops back to a more moderate level of 3, mirroring January’s conditions. With a burn time of 30 minutes, residents and visitors can enjoy outdoor activities without the intense concerns about sun exposure seen in the summer months. This trend of decreasing UV intensity from the peak of the summer's 11 reflects a natural ebb as winter approaches, making December a safer time for outdoor enjoyment. As the year comes to a close, it’s a perfect opportunity to balance fun in the sun with smart sun safety! For more detailed information, check the Goyang-si UV Index.

Maximum UV Index Levels in Goyang-si for December

The chart shows the monthly maximum UV Index (UVI) for Goyang-si 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 Goyang-si typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891011119643
Data source: Goyang-si 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 Goyang-si

In Goyang-si, South Korea, the month of December typically enjoys about 235 hours of sunshine, wrapping up the year with a soft glow as the days gradually shorten. As we reflect on the yearly trend, December's sunshine is a gentle reminder of the brighter months, with hours steadily increasing from the winter chill of January’s 199 hours to the blooming brightness of June, which boasts the highest at 317 hours. This vibrant shift emphasizes how Goyang-si transitions through its seasons, with every month offering its unique blend of sunlight, peaking in late spring and early summer. Notably, December’s sunshine, while not the strongest of the year, still provides a delightful close to the year and a promising outlook as the days begin to lengthen again into the New Year.

Monthly Sunshine Duration in Goyang-si: December Highlighted

The December sunshine duration represents the total number of hours Goyang-si 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.
JanFebMarAprMayJunJulAugSepOctNovDec199h242h282h287h311h317h294h289h262h263h231h235h
Data source: Goyang-si December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Goyang-si During December

In Goyang-si, South Korea, December brings a notable increase in the likelihood of sunny weather, with a 64% chance of sunshine. This is an upward trend compared to the 56% chance found in the preceding months of January and February, and significantly higher than the 61% experienced in November. While the chances are not as robust as the peak summer months, this winter month stands out as a relatively bright period, offering a refreshing contrast to the gloomier days of the wetter season. Overall, December shines with greater promise for sunny skies, making it an inviting time to explore the city's winter charm.

Percentage of Sunny Days in December in Goyang-si

The chart illustrates the percentage of sunny days in Goyang-si 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 Goyang-si experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec57%56%43%45%38%35%32%32%42%43%61%64%
Data source: Goyang-si December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Goyang-si in December

As December unfolds in Goyang-si, South Korea, residents experience a return to shorter days, with only 9 hours of daylight. This month marks the culmination of a gradual decline that began in late autumn, where daylight hours steadily decreased from 14 hours in June to the current winter setting. The progression throughout the year reveals a rhythmic transition: February offers a slight increase to 10 hours, hinting at the promise of renewal as the days lengthen towards spring. The gradual shift from March's 11 hours to April's 13 reflects a vibrant awakening, ultimately peaking in the lush light of summer before falling back again. This pattern not only defines the seasonal experience in Goyang-si but also shapes the community's cultural rhythm, fostering an appreciation for the serene beauty of winter's shorter days.

Average Daylight Hours in Goyang-si for December

The chart illustrates the variation in daylight duration in Goyang-si throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 51m10h 46m11h 57m13h 10m14h 11m14h 42m14h 27m13h 33m12h 23m11h 11m10h 8m9h 35m
Data source: Goyang-si daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Goyang-si

As December rolls into Goyang-si, South Korea, the average wind speed experiences a slight uptick to 2.7 m/s (6 mph), reflecting a return to the moderate breezes typical of the earlier months. This contrasts with the calmer and more subdued winds of summer months, particularly July, which recorded a gentle 1.9 m/s (4 mph). Interestingly, the winter season does not usher in a dramatic increase in wind speed, maintaining levels similar to those seen in April and May. This consistency hints at a stable climatological pattern, providing residents and visitors alike with a refreshing yet manageable breeze as they enjoy the crisp December air.

Average December Wind Speed in Goyang-si

The chart displays monthly wind speed patterns in Goyang-si, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.83.12.52.72.72.11.92.22.42.32.42.7 m/s
Data source: Goyang-si December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Goyang-si Compares to Other Months

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

December and January display similar weather patterns, yet there are notable differences. In December, temperatures range from a minimum of -16°C (4°F) to a maximum of 12°C (54°F), averaging around -1°C (31°F) with 20 mm (0.8 in) of precipitation spread over 4 days. Humidity is relatively high at 74%. In contrast, January experiences slightly colder temperatures, with a minimum of -18°C (0°F) and an average of -3°C (27°F), while still peaking at 12°C (55°F). Precipitation decreases to 19 mm (0.7 in) over just 2 days, with humidity lower at 71%. For more specific details on January weather, check Goyang-si weather in January.

In December, the weather features a wider range of temperatures, with a minimum of -16°C (4°F) and a maximum of 12°C (54°F), resulting in an average of -1°C (31°F) and a humidity level of 74%. Precipitation is relatively low, with about 20 mm (0.8 in) falling over four days. In contrast, February offers slightly milder conditions, with temperatures ranging from a minimum of -15°C (5°F) to a maximum of 17°C (62°F), leading to an average of 0°C (31°F). The month experiences a similar precipitation level of 21 mm (0.8 in) but over just three days, with humidity dropping to 65%. For more details, check out Goyang-si weather in February.

In December, temperatures in Goyang-si range from a frigid minimum of -16°C (4°F) to a maximum of 12°C (54°F), with an average temperature of -1°C (31°F). The month experiences relatively low precipitation, totaling 20 mm (0.8 in) over about four days, and comes with a higher humidity level at 74%. In contrast, March sees a more moderate climate, with temperatures fluctuating from a minimum of -8°C (19°F) to a maximum of 21°C (69°F), averaging 6°C (44°F). Precipitation increases to 43 mm (1.7 in) over five days, and humidity drops to 65%. This shift in weather indicates a transition towards warmer spring conditions. For more details on March weather, you can check Goyang-si weather in March.

December and April in Goyang-si present a stark contrast in weather conditions. December is characterized by much colder temperatures, with a minimum reaching -16°C (4°F) and an average of -1°C (31°F), while April experiences a milder climate with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 28°C (82°F). Precipitation also varies significantly; December sees about 20 mm (0.8 in) falling over just 4 days, while April averages 52 mm (2.1 in) across 7 days, indicating a wetter month. Despite the increase in rainfall in April, humidity levels remain fairly similar, with December at 74% and April slightly higher at 75%. For more detailed information, you can explore Goyang-si weather in April.

December and May present strikingly different weather conditions. In December, temperatures can dip as low as -16°C (4°F), with an average of -1°C (31°F) and highs reaching only 12°C (54°F). The month is relatively dry, receiving about 20 mm (0.8 in) of precipitation over just four days, and the humidity averages around 74%. In contrast, May brings much milder temperatures, with a minimum of 5°C (41°F) and an average of 18°C (64°F), peaking at a warm 31°C (88°F). However, it also sees significantly more rainfall, totaling 112 mm (4.4 in) over nine days, and a slightly higher humidity of 81%. For detailed insights, you can check out Goyang-si weather in May.

December and June present starkly contrasting weather conditions. In December, temperatures range from a chilly -16°C (4°F) to a moderate max of 12°C (54°F), with an average of -1°C (31°F). The month sees around 20 mm (0.8 in) of precipitation over four days, with humidity at 74%. On the other hand, June warms up significantly with minimum temperatures at 12°C (55°F) and an average of 22°C (73°F), peaking at a hot 35°C (96°F). This month experiences higher precipitation at 79 mm (3.1 in) across eight days and increased humidity at 85%. For those interested in more about the weather in June, check Goyang-si weather in June.

In December, the weather is quite chilly, with temperatures ranging from a minimum of -16°C (4°F) to a maximum of 12°C (54°F) and an average of -1°C (31°F). The month sees limited precipitation, with only 20 mm (0.8 in) falling over four days, and humidity sitting at 74%. In contrast, July brings significantly warmer weather, with temperatures varying from a minimum of 18°C (64°F) to a scorching maximum of 36°C (97°F), averaging around 26°C (79°F). This month experiences much heavier rainfall, totaling 217 mm (8.6 in) across 14 days, coupled with a higher humidity level of 91%. For more detailed information, you can visit Goyang-si weather in July.

The comparison between December and August highlights the stark contrast in weather conditions. In December, temperatures can drop to a minimum of -16°C (4°F) and average around -1°C (31°F), with a maximum of 12°C (54°F). This month experiences low precipitation of 20 mm (0.8 in) over just 4 days and enjoys a relatively moderate humidity of 74%. In stark contrast, August boasts much warmer temperatures, ranging from a minimum of 15°C (59°F) to an average of 26°C (80°F), peaking at a scorching 38°C (100°F). This summer month is characterized by heavy rainfall, totaling 262 mm (10.3 in) across 16 days, alongside high humidity levels of 91%. For more detailed insights, check the Goyang-si weather in August.

In comparing the weather between December and September, it's clear that these months are quite distinct. December experiences colder temperatures, with a minimum of -16°C (4°F) and an average of -1°C (31°F), while September boasts much milder conditions, featuring a minimum of 9°C (48°F) and an average of 21°C (71°F). Additionally, September is characterized by significantly higher precipitation at 135 mm (5.3 in) over 9 days, compared to December's relatively low 20 mm (0.8 in) across just 4 days. Humidity levels are also slightly higher in September at 77%, compared to December's 74%. For further details on September weather, you can visit Goyang-si weather in September.

December and October showcase a striking contrast in weather patterns. December experiences much colder temperatures, with a minimum of -16°C (4°F) and an average of -1°C (31°F), while October boasts milder conditions, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 28°C (83°F). Precipitation is also more frequent in October, with 59 mm (2.3 in) over six days compared to December's lighter rainfall of 20 mm (0.8 in) over four days. Humidity levels remain relatively high in both months, with December at 74% and October slightly higher at 79%. For a closer look at October's climate, you can refer to Goyang-si weather in October.

December presents a colder climate compared to November, with minimum temperatures dropping to -16°C (4°F) and an average of -1°C (31°F), while November features milder temperatures, with a minimum of -8°C (18°F) and an average of 7°C (44°F). The maximum temperature in December reaches only up to 12°C (54°F), significantly lower than November's peak of 21°C (70°F). Additionally, December experiences less precipitation, totaling 20 mm (0.8 in) over 4 days, whereas November sees a higher amount of 47 mm (1.8 in) across 5 days. Humidity also slightly decreases in December at 74% compared to 80% in November. For more information, check out Goyang-si weather in November.

Compare Goyang-si's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Goyang-si

As December settles over Goyang-si, the weather takes a notable shift, bringing a crisp chill that contrasts sharply with the milder months preceding it. With temperatures dipping to their lowest points of the year, residents experience a bracing average of -1°C, while the occasional daytime highs reach a moderate 12°C. The humidity level rises to 74%, adding a damp chill to the air, and light snowfall or rain may emerge with about 20 mm of precipitation spread over just four days. This month serves as a transition into the heart of winter, inviting cozy indoor activities and festive celebrations. For a more comprehensive understanding of what to expect throughout the year, check out Goyang-si Climate.