Last updated: October 30, 2025
In Yongsan-dong, South Korea, December ushers in a crisp winter ambiance characterized by a maximum temperature of 12°C (54°F) and an average of -1°C (31°F), with nighttime lows potentially plummeting to -15°C (5°F). The month sees 22 mm (0.9 in) of precipitation spread over approximately four days, contributing to the area's beautiful, frosty landscapes. With an average humidity of 74%, residents and visitors alike are treated to a season that encapsulates the charm of winter, making it a unique time to explore the vibrant streets of Yongsan-dong.
In Yongsan-dong, South Korea, December brings the first whispers of winter, with temperatures beginning to plunge. The month opens with a minimum temperature around -15°C (5°F), contrasting sharply with the milder average highs of about 12°C (54°F). This chill marks a clear transition from the cooler autumn months, where November still held on to slightly warmer averages. As December progresses, the biting cold encourages residents and visitors alike to embrace cozy winter layers, while the moderate daytime highs offer brief respites suitable for enjoying outdoor festivities. Overall, the month encapsulates the cold snap of winter, establishing a defining ambiance of the season in the heart of the city.
In Yongsan-dong, South Korea, December brings a mildly wet farewell to the year, with an average precipitation of 22 mm (0.9 inches) over just four days. This amount is a significant drop compared to the summer months, particularly July and August, which see the heaviest rainfalls of the year at 252 mm (9.9 in) and 269 mm (10.6 in), respectively. As autumn transitions into winter, November’s rainfall of 54 mm (2.1 in) sets the stage for December’s more subdued conditions. While the month may not be drenched, it plays a vital role in the overall climate pattern, with periodic snowfalls providing a picturesque concluding chapter to the year.
In Yongsan-dong, South Korea, the December humidity stands at 74%, marking a slight dip from the preceding months. As the year progresses, humidity levels typically rise, peaking in the summer months of July and August at a steamy 91%. This trend suggests a natural ebb and flow, with spring and early autumn remaining relatively mild, as seen in April's 75% and September's 77% readings. The transition into winter is characterized by a decrease from the higher autumn figures, yet December's levels still reveal a significant degree of moisture, echoing the lingering effects of the humid summer. Overall, Yongsan-dong's climate presents a dynamic spectrum of humidity that enhances its seasonal character.
In Yongsan-dong, South Korea, the UV Index showcases a clear seasonal trend, peaking during the summer months. Starting from a moderate UV Index of 3 in January and December, the index steadily climbs, reaching a high of 6 by March. April marks the onset of very high UV levels, which continue to escalate, peaking at an extreme 11 in both July and August. As summer fades, the UV Index gradually declines, returning to a more moderate 4 in November and settling back to 3 by December. This trend underlines the importance of sun protection during the sweltering summer months while allowing for more relaxed exposure during the colder end of the year. For a detailed overview and real-time updates, check the Yongsan-dong UV Index.
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In the heart of Yongsan-dong, December brings a pleasant 235 hours of sunshine, a continuation of the steadily waning daylight seen as the year draws to a close. As the calendar transitioned from summer's glorious 317 hours in June to winter's crisp days, sunlight hours fluctuated but remained relatively stable throughout the fall. Notably, the winter months still offer a generous amount of sunlight compared to the year's earlier months like January, which kicks off with a modest 199 hours. This gradual increase from February onwards highlights a consistent trend of longer sunny days as spring approaches, culminating in May's peak of 311 hours. Even though December's light lingers just above November's 231 hours, it invites residents and visitors alike to soak up every precious ray before the longer nights of winter set in.
In Yongsan-dong, Korea, December brings an enhanced likelihood of sunny weather compared to the preceding months, with a 64% chance of sunshine. This increase marks a notable rise from November's 58%, highlighting a trend toward brighter days as winter settles in. While the chances of sun dip significantly during the summer months, where they hover around 30%, December stands out as a refreshing contrast, offering a glimpse of sunshine amid the colder weather. This month’s sunny disposition is a welcomed shift, providing an opportunity for residents and visitors alike to enjoy more outdoor activities before the heart of winter envelops the region.
As the year winds down, December in Yongsan-dong, South Korea, brings a return to shorter days, with daylight lasting around 9 hours. This decrease in sunlight follows the gradual lengthening seen from January’s brief days to the 14 hours of daylight during the height of summer in June and July. Notably, the transition from the vibrant spring and summer months to winter is stark; daylight duration dips from 10 hours in November to a similar level in January. This cyclical fluctuation illustrates Yongsan-dong's distinct seasonal rhythm, where the culmination of winter is met with a brief twilight as the city prepares for the longer days that await in spring.
As December settles in Yongsan-dong, South Korea, the average wind speed picks up slightly to 2.7 m/s (6 mph), aligning closely with the gentle breezes of the spring and fall months. This uptick resonates with the chill of winter, offering a refreshing contrast to the summer's languid air. Observing the annual trend, it's notable that winter months generally depict a slight increase in wind activity, suggesting a seasonal shift in airflow patterns. Comparatively, the winds of December serve as a reminder of nature's cyclical rhythm, bridging the tranquil calm of late autumn with the brisk freshness that winter brings.
Weather in Yongsan-dong varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Yongsan-dong, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January exhibit distinct yet somewhat similar winter weather patterns. In December, temperatures range from a minimum of -15°C (5°F) to a maximum of 12°C (54°F), with an average temperature of -1°C (31°F). The month sees 22 mm (0.9 in) of precipitation over approximately 4 days and maintains a humidity level of 74%. In contrast, January is slightly colder, with minimum temperatures dropping to -18°C (1°F) and an average of -2°C (28°F), while still reaching a maximum of 13°C (55°F). Precipitation decreases to 19 mm (0.8 in), occurring over just 2 days, and humidity levels fall slightly to 71%. For more detailed weather information, you can check Yongsan-dong weather in January.
December and February offer contrasting yet similar weather experiences. In December, temperatures can drop to a minimum of -15°C (5°F), with average highs around -1°C (31°F), while February sees slightly warmer conditions, with a minimum of -14°C (7°F) and a higher average temperature of 0°C (32°F). Both months receive similar levels of precipitation, approximately 22 mm (0.9 in) in December and 22 mm (0.8 in) in February, typically falling over four days. Additionally, February enjoys lower humidity levels at 65% compared to December's 74%, contributing to a crisper feel. For more specific details about February weather, you can check Yongsan-dong weather in February.
December and March present contrasting weather patterns. In December, temperatures can plunge to a chilling minimum of -15°C (5°F), with an average of -1°C (31°F) and a maximum of 12°C (54°F). The month typically experiences about 22 mm (0.9 in) of precipitation over four days, with humidity levels averaging 74%, contributing to a distinctly cold atmosphere. In contrast, March sees a more moderate climate, with temperatures ranging from a minimum of -7°C (20°F) to an average of 7°C (44°F) and reaching a pleasant maximum of 21°C (70°F). Precipitation increases to 46 mm (1.8 in) over five days, while humidity decreases to 65%, marking the transition into spring. For a detailed look at March weather, you can visit Yongsan-dong weather in March.
December weather is characterized by much colder temperatures, with a minimum of -15°C (5°F) and an average of -1°C (31°F), while April sees a significant warming trend, featuring a minimum of 0°C (32°F) and an average of 12°C (54°F). Additionally, December experiences lower precipitation levels at 22 mm (0.9 in) over 4 days, in contrast to April’s higher precipitation of 55 mm (2.2 in) over 6 days, reflecting the transition from winter to spring. Humidity remains relatively similar in both months, with December at 74% and April at 75%. For a closer look at the specifics of April weather, you can visit Yongsan-dong weather in April.
December and May present starkly contrasting weather conditions. In December, temperatures can drop as low as -15°C (5°F), with an average of -1°C (31°F) and a maximum of 12°C (54°F). The month sees light precipitation totaling 22 mm (0.9 in) across about 4 days, accompanied by a humidity level of 74%. In contrast, May enjoys much milder temperatures, with a minimum of 6°C (43°F), an average of 18°C (64°F), and a high of 32°C (89°F). The month is considerably wetter, receiving 111 mm (4.4 in) of rain over 9 days, and humidity rises to 81%. For a closer look at the specific weather characteristics during this vibrant spring month, check out Yongsan-dong weather in May.
December and June present a sharp contrast in weather conditions. In December, temperatures can plummet to a minimum of -15°C (5°F), with an average around -1°C (31°F) and a maximum reaching 12°C (54°F). The month typically sees around 22 mm (0.9 in) of precipitation over just four days, accompanied by a relatively high humidity level of 74%.
In stark contrast, June boasts much warmer temperatures, with minimums of 12°C (54°F), average highs of 22°C (72°F), and peaks soaring to 35°C (94°F). This month experiences significantly higher precipitation, totaling 86 mm (3.4 in) over eight days, and humidity also rises to an average of 85%. For a more detailed overview of June weather specifically, you can visit Yongsan-dong weather in June.
December and July present starkly contrasting weather conditions in Yongsan-dong. In December, temperatures can plummet to a chilling minimum of -15°C (5°F), with an average of -1°C (31°F) and a maximum reaching 12°C (54°F). The month sees relatively low precipitation at 22 mm (0.9 in) over just 4 days, accompanied by a humidity level of 74%.
In sharp contrast, July boasts a much warmer climate with minimum temperatures around 18°C (64°F) and an average of 26°C (79°F), peaking at a sweltering 36°C (97°F). This month experiences significant rainfall, with approximately 252 mm (9.9 in) spread over 15 days and higher humidity at 91%. For more detailed insights, check Yongsan-dong weather in July.
December and August present starkly contrasting weather conditions. In December, temperatures can plunge as low as -15°C (5°F), with an average of -1°C (31°F) and a maximum of 12°C (54°F). The month experiences relatively low precipitation at 22 mm (0.9 in) over just 4 days, along with a humidity level of 74%. In sharp contrast, August boasts significantly warmer temperatures, ranging from a minimum of 16°C (61°F) to a scorching maximum of 38°C (101°F), with an average temperature of 26°C (80°F). This summer month is also marked by heavy rainfall, accumulating 269 mm (10.6 in) over 16 days, and high humidity at 91%. The differences in temperature, precipitation, and humidity highlight the extremes of Seoul's seasonal weather. For more insights, check out Yongsan-dong weather in August.
December weather contrasts sharply with that of September. In December, temperatures can plummet as low as -15°C (5°F), with an average of -1°C (31°F) and a maximum reaching 12°C (54°F). The month also sees only 22 mm (0.9 in) of precipitation over four days, contributing to a cool and relatively dry climate with humidity at 74%.
In comparison, September enjoys much warmer conditions, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 31°C (88°F), averaging 21°C (70°F). This month experiences significantly higher precipitation at 133 mm (5.2 in) over nine days, along with a slightly higher humidity level of 77%. For further details on weather conditions, check out Yongsan-dong weather in September.
December and October present contrasting weather characteristics, showcasing the transition from the crisp autumn to the chill of winter. In December, temperatures plummet with a minimum of -15°C (5°F) and an average of -1°C (31°F), while October enjoys a much milder climate with a minimum of 0°C (32°F) and an average of 14°C (58°F). Precipitation is also notable; December sees 22 mm (0.9 in) over 4 days, whereas October is wetter with 63 mm (2.5 in) distributed across 6 days. Additionally, humidity levels are fairly high in both months, though October's 79% slightly exceeds December's 74%. For a closer look at October weather, you can visit Yongsan-dong weather in October.
In comparing the weather between November and December, a noticeable drop in temperature is evident. December experiences a wider range, with minimum temperatures plunging to -15°C (5°F) and an average around -1°C (31°F), compared to November's milder minimum of -7°C (21°F) and an average of 7°C (45°F). Additionally, December brings less precipitation, totaling 22 mm (0.9 in) over just 4 days, whereas November sees a heftier 54 mm (2.1 in) across 5 days. Humidity levels also shift slightly, with December at 74% and November higher at 80%. To learn more about November's specific weather conditions, you can visit Yongsan-dong weather in November.
As December wraps Yongsan-dong in a chillier embrace, the weather starkly contrasts the milder months that precede it. With daytime temperatures sinking to an average low of around -1°C and even plunging to -15°C at times, this month signals a departure from the more temperate autumn days. While the crisp air brings a certain charm, the noticeable increase in humidity at 74% adds to the winter bite. Only a few days see precipitation, totaling 22 mm, but there’s an undeniable shift in the atmosphere as the year winds down. For a deeper dive into Yongsan-dong's weather patterns throughout the year, visit Yongsan-dong Climate.