Last updated: October 30, 2025
In Yongsan, South Korea, December brings a mix of chilly temperatures and moderate precipitation, setting a wintry scene. With a maximum temperature reaching 15°C (59°F) and a stark average of 1°C (33°F), residents experience the crispness of the season. Nights can plunge to a chilling -13°C (8°F), highlighting the need for warm clothing. Over the month, precipitation totals 24 mm (1.0 in), occurring on approximately 3 days, allowing for a refreshing touch to the dry winter air, while humidity levels hover around a notable 76%. Embrace the festive atmosphere and prepare for a delightful winter experience in Yongsan this December!
In December, Yongsan, South Korea, experiences a notable transition into winter, marked by a minimum temperature plummeting to -13°C (8°F) and an average temperature of just 1°C (33°F). As the month progresses, the weather remains chilly, with daytime highs reaching a comfortable 15°C (59°F), offering a brief respite from the colder nights. This month's temperatures reflect a downward trend from the milder autumn months, as November had an average of 8°C (46°F), highlighting the significant shift towards a harsher winter climate. Overall, December in Yongsan encapsulates the essence of the season's chill, while also hinting at the festive warmth of the holidays amidst the frosty backdrop.
In December, Yongsan, South Korea, experiences a notable decline in precipitation, receiving only 24 mm (1.0 in) over 3 days. This marks a sharp contrast to the heavy rains of the preceding summer months, where July and August recorded impressive totals of 222 mm and 229 mm respectively. As the year comes to a close, the trend shifts from the intense downpours of mid-year to a drier winter season, reflecting a significant decrease in both precipitation amount and days of rainfall. December's weather is more subdued, paving the way for the cold winter months ahead, with the average precipitation amount here mirroring those of January and November.
In Yongsan, South Korea, December marks a transition from the high humidity of summer, which peaks at a notable 91% in both July and August. As the year wraps up, humidity levels begin to taper off, with December experiencing a comfortable 76%. This decline follows a trend of higher humidity in the earlier months, particularly from May through October, where values consistently linger above 70%. Interestingly, while December is notably less humid than the summer months, it still retains a level of moisture comparable to the spring months, such as April and November. Overall, this pattern reveals a seasonal rhythm, highlighting Yongsan's shift from damp, humid summers to milder, more temperate winters.
In December, Yongsan, South Korea experiences a moderate UV Index of 3, which allows for a more leisurely sun exposure without the immediate risk of sunburn. Following the extremes of summer, where UV levels spiked to 11 and 12, the gradual decrease in the UV Index signals a shift towards safer outdoor activities. With a burn time of 30 minutes, sun safety remains essential, but residents and visitors can enjoy more time outside without the intense precautions needed during the peak months of June to August. As winter sets in, it's a great opportunity to bask in the softer sunlight, reminding us of the seasonal variations that influence our sun care routines. For more detailed information, check the Yongsan UV Index.
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As December arrives in Yongsan, South Korea, the city is graced with 236 hours of sunshine, offering a gentle transition into winter. This month reflects a noticeable trend, with sunshine hours stabilizing after a peak in May at 303 hours. Following the vibrant exuberance of spring and summer, where sunlight reached its zenith, December's sunshine is complemented by crisp air, creating a unique charm. The decline from peak summer brightness showcases a seasonal rhythm, yet the persistence of sunshine in December reminds residents of the lingering warmth before winter fully takes hold. Amidst the cooler temperatures, these sunny hours provide a delightful contrast, encouraging outdoor exploration as the year wraps up.
In Yongsan, South Korea, December marks a positive turning point in the likelihood of sunny weather, with a 63% chance of sunshine that month. This is notable as it stands out from the lower probabilities seen in the summer months, where the chances drop to around 25% to 35%. As the year progresses, the trend reflects an increasing potential for clear skies, starting from 50% in October and rising significantly into November. This upward trajectory culminates in December, hinting at a brighter end to the year, suggesting that those looking for sun during this winter month may just find it.
As the year progresses in Yongsan, South Korea, daylight duration sees a notable ebb and flow influenced by the changing seasons. From January's 9 hours of daylight, the days gradually lengthen, peaking in May and June with a generous 14 hours. This peak marks the height of summer, where the sun graces the sky for longer stretches, allowing for vibrant outdoor activities. However, as autumn approaches, daylight diminishes, returning to 10 hours in November and settling back to 9 hours in December. This cyclical pattern showcases Yongsan's transition from long, sunlit days of summer to the crisp, shorter days of winter, allowing residents to appreciate the beauty of each season's light.
As December rolls into Yongsan, South Korea, the average wind speed hovers around 2.9 m/s (6 mph), mirroring the breezy patterns seen in January. This month's winds bring a refreshing chill, reminiscent of the cooler air that begins to settle in as winter approaches. Notably, Yongsan experiences a gradual decline in wind speed during the warmer months, peaking in early spring with speeds around 3.4 m/s (8 mph) in February but dipping to a gentle 1.9 m/s (4 mph) by August. By November, a slight uptick to 2.6 m/s (6 mph) hints at the seasonal transition, leading to December's steady return to the 2.9 m/s mark. This trend showcases a rhythmic ebb and flow of winds, creating an inviting atmosphere for festive winter activities amidst the serene backdrop of Yongsan.
Weather in Yongsan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Yongsan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather features a wide range of temperatures, with a minimum of -13°C (8°F) and an average of 1°C (33°F), peaking at 15°C (59°F). It experiences a relatively high humidity level of 76% and sees about 24 mm (1.0 in) of precipitation over three days.
In contrast, January is colder, with the minimum temperature dropping to -20°C (-4°F) and an average of -1°C (30°F), while the maximum reaches 13°C (55°F). Despite a slight increase in precipitation to 25 mm (1.0 in) over four days, humidity decreases to 71%.
For more detailed insights, you can check out Yongsan weather in January.
In December, temperatures typically range from a low of -13°C (8°F) to a maximum of 15°C (59°F), with an average temperature of around 1°C (33°F). The month receives about 24 mm (1.0 in) of precipitation over approximately 3 days, accompanied by a relatively high humidity level of 76%. In contrast, February experiences slightly lower minimum temperatures at -15°C (5°F), while the maximum can reach up to 22°C (71°F), with the average staying around 1°C (34°F). Overall, February sees a bit more precipitation at 34 mm (1.3 in) over 4 days, but the humidity is lower at 66%. For a closer look at February weather, check out Yongsan weather in February.
December features a chilly climate with temperatures ranging from a minimum of -13°C (8°F) to a maximum of 15°C (59°F), averaging around 1°C (33°F). The month is relatively dry with only 24 mm (1.0 in) of precipitation and humidity levels lingering at 76%. In contrast, March experiences a significant warming trend, where temperatures can drop to -5°C (23°F) at night but can soar up to 24°C (75°F) during the day, averaging 8°C (46°F). Additionally, March sees increased precipitation, totaling 65 mm (2.5 in) over about 8 days, and lower humidity at 64%. For more detailed information on March weather, you can visit Yongsan weather in March.
In December, temperatures can be quite frigid, with a minimum of -13°C (8°F) and an average around 1°C (33°F), while highs can reach up to 15°C (59°F). The humidity levels are moderate at 76%, and precipitation is relatively low with just 24 mm (1.0 in) over about 3 days. In contrast, April brings a significant warm-up, with temperatures ranging from a minimum of -1°C (30°F) to an average of 13°C (55°F) and soaring up to a maximum of 29°C (85°F). The month is wetter, featuring 69 mm (2.7 in) of rainfall across 6 days, with humidity slightly lower at 74%. For more details on April weather specifically, you can check Yongsan weather in April.
December and May present contrasting weather conditions, highlighting the shift from winter to spring. In December, temperatures range from a chilly -13°C (8°F) to a mild 15°C (59°F), with an average of 1°C (33°F). The month experiences low precipitation of 24 mm (1.0 in) over just 3 days and a humidity level around 76%, creating a crisp and cold atmosphere.
In contrast, May brings much warmer temperatures, with a minimum of 4°C (40°F), an average of 18°C (65°F), and soaring highs of up to 31°C (89°F). The month sees significantly more precipitation, totaling 82 mm (3.2 in) across 8 days, alongside slightly higher humidity at 79%. This transition highlights the vibrant and lively essence of spring. For more details about May's weather, check Yongsan weather in May.
In December, temperatures can drop as low as -13°C (8°F), with an average hovering around 1°C (33°F) and a maximum of 15°C (59°F). The month sees relatively low precipitation at 24 mm (1.0 in), occurring over three days, and humidity levels settle at 76%. In contrast, June offers a much warmer climate, with minimum temperatures starting at 11°C (52°F) and averaging 22°C (73°F), reaching highs of 34°C (94°F). Precipitation is significantly higher in June at 102 mm (4.0 in) over eight days, accompanied by a slightly elevated humidity level of 82%. For a closer look at Yongsan's June weather, you can view more details here: Yongsan weather in June.
December and July present contrasting weather experiences. In December, temperatures notably dip, with lows reaching -13°C (8°F) and an average around 1°C (33°F). Precipitation is relatively low at 24 mm (1.0 in) over just 3 days, and humidity sits at 76%, contributing to a chilly atmosphere. In stark contrast, July boasts much warmer conditions, with minimum temperatures of 17°C (62°F) and an average high of 25°C (78°F), peaking at a sweltering 36°C (98°F). This month sees significant rainfall, totaling 222 mm (8.8 in) across 16 days, and humidity rises to 91%, creating a humid, tropical feel. For a closer look at July’s weather patterns, visit Yongsan weather in July.
December and August present stark contrasts in weather. In December, temperatures typically range from a chilling -13°C (8°F) at night to a milder 15°C (59°F) during the day, with an average around 1°C (33°F). The month sees relatively low precipitation at 24 mm (1.0 in) over just 3 days, accompanied by a humidity level of 76%. In contrast, August experiences much warmer conditions, with temperatures ranging from a minimum of 16°C (60°F) to a scorching maximum of 38°C (100°F), averaging 26°C (79°F). This summer month is characterized by significant rainfall, totaling 229 mm (9.0 in) over 16 days, and a higher humidity level of 91%. Such differences highlight the dramatic seasonal shifts in climate. For more specific insights, check out Yongsan weather in August.
In comparing the weather of December and September, the differences are quite striking. December experiences much colder temperatures, with a minimum of -13°C (8°F) and an average of 1°C (33°F), while September boasts a much warmer minimum of 10°C (50°F) and an average of 21°C (70°F). Precipitation is also significantly higher in September, with 182 mm (7.2 in) over approximately 10 days, compared to December's 24 mm (1.0 in) across just 3 days. The humidity levels are relatively similar, with December at 76% and September slightly higher at 77%. For a closer look at the weather during this warmer month, you can check Yongsan weather in September.
In comparing December and October weather, October typically offers a milder climate with temperatures ranging from a chilly minimum of 0°C (32°F) to a warm maximum of 31°C (88°F) and an average temperature of 14°C (58°F). In contrast, December experiences much colder conditions, with temperatures falling as low as -13°C (8°F) and averaging around 1°C (33°F), peaking at 15°C (59°F). Additionally, October tends to be wetter, receiving 73 mm (2.9 in) of precipitation over about 6 days, while December has only 24 mm (1.0 in) of precipitation across 3 days, resulting in slightly lower humidity levels at 76% compared to 78% in October. For more details on October weather, you can check Yongsan weather in October.
In comparing the weather between December and November, December tends to be significantly colder, with average temperatures ranging from a minimum of -13°C (8°F) to a maximum of 15°C (59°F), while November sees milder conditions with temperatures from -5°C (23°F) to 21°C (70°F). Precipitation is slightly lower in December at 24 mm (1.0 in) over 3 days, compared to November's 31 mm (1.2 in) across 5 days. Humidity remains relatively high in both months, with December averaging 76% and November slightly higher at 80%. For a more detailed look at the weather patterns in November, you can check Yongsan weather in November.
As December settles over Yongsan, the weather takes a distinct turn, marking a departure from the milder months. With temperatures dipping significantly, residents can expect a shift from the preceding warmth to a crisp chill, highlighted by occasional frosty days. The month registers a modest amount of precipitation, yet the humidity remains high, adding a layer of dampness to the air. Unlike the vibrant summers, December embraces a quiet coolness, inviting cozy gatherings and warm drinks as the festive season approaches. For a deeper dive into the climate patterns and trends in Yongsan, check out Yongsan Climate.