December Weather in Gangneung, South Korea

Last updated: October 30, 2025

In December, Gangneung, South Korea experiences a unique blend of wintery conditions, with an average temperature hovering around -1°C (31°F). Daily highs can reach a maximum of 13°C (55°F), while nighttime lows can plummet to a chilly -19°C (-3°F). This month also sees 21 mm (0.8 in) of precipitation over approximately 3 days, contributing to the city's crisp atmosphere. With a humidity rate of 76%, residents and visitors alike can expect a characteristically damp cold, perfect for cozy indoor activities and highlighting the beauty of the winter season in this scenic coastal locale.

December Temperature in Gangneung

In December, Gangneung, South Korea, experiences the striking transition of winter, with temperatures ranging from a chilly -19°C (-3°F) at night to a more moderate 13°C (55°F) during the day. The average temperature hovers around -1°C (31°F), reflecting the cold grip of the season. As the month unfolds, locals and visitors alike embrace the crisp air and potential snowfall, contrasting sharply with the milder conditions seen in the preceding months. This significant dip in temperatures marks a clear arrival of winter, setting the stage for cozy activities, winter sports, and the picturesque charm of the snowy landscape.

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

The chart illustrates December temperature patterns in Gangneung, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gangneung, December typically has an average temperature of -1°C (31°F), with highs reaching up to 13°C (55°F) and lows dropping to around -19°C (-3°F).
JanFebMarAprMayJunJulAugSepOctNovDec273042516167737465544331
Data source: Temperature data for Gangneung 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 Gangneung

As the year draws to a close, December in Gangneung, South Korea showcases a marked decline in precipitation, with only 21 mm (0.8 in) falling over just three days. This shift is a stark contrast to the summer months, where rainfall peaks dramatically, with July and August averaging around 245 mm (9.6 in) and 246 mm (9.7 in), respectively. Following a wet autumn, December's brief precipitation spells reflect a transition into drier winter weather, aligning with the region's climatic patterns. This month's modest rainfall paves the way for colder conditions, as residents prepare for the upcoming winter season.

December Precipitation Trends in Gangneung

The chart displays monthly precipitation patterns in Gangneung, 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 Gangneung, December typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec4028859490852432462051324722
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Gangneung

In Gangneung, South Korea, December brings a moderate humidity level of 76%, reflecting a pattern of fluctuating moisture throughout the year. Following a peak in the sweltering summer months of July and August, where humidity reaches a high of 91%, the fall months show a gradual decline. After hovering around 80% in November, December’s humidity presents a slight drop, indicating a transition towards drier winter conditions. Notably, the humidity levels in Gangneung are generally higher from late spring through summer, peaking during the hottest months, while winter months like January and February tend to be less humid, setting the stage for brisker, cooler weather.

December Average Humidity in Gangneung

This chart illustrates the average monthly humidity levels in Gangneung, 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 Gangneung is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%66%64%74%79%82%91%91%77%78%80%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Gangneung

In Gangneung, South Korea, the UV Index ebbs and flows throughout the year, showcasing a distinct seasonal pattern. As winter approaches in December, the UV Index dips back down to a moderate level of 3, similar to what is observed in January and November. This means residents and visitors can expect a burn time of 30 minutes under the sun, a welcome reprieve after the peak summer months when the index soared to an extreme level of 12 in August. Notably, the transition from spring to summer reveals a significant uptick, with the UV Index climbing sharply from 6 in March to a staggering 11 in June and July. This trend highlights the importance of sun safety as warmer weather approaches, with a return to moderate levels by the year's end. To learn more about UV levels throughout the year, visit Gangneung UV Index.

Maximum UV Index Levels in Gangneung for December

The chart shows the monthly maximum UV Index (UVI) for Gangneung 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 Gangneung typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34691011111210743
Data source: Gangneung 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 Gangneung

December in Gangneung, South Korea, offers a delightful blend of sunny days, boasting approximately 240 hours of sunshine. As the year winds down, the city experiences a significant drop in daylight from the vibrant summer months, yet remains bright enough to illuminate the winter landscape. Following a steady increase from 195 hours in January to a peak of 312 hours in June, the sunshine gradually recedes, complementing the cozy atmosphere of late autumn and early winter. Notably, December's sunshine hours are a comfortable embrace compared to the preceding months, reinforcing the notion that even in winter, Gangneung invites residents and visitors alike to savor the subtle radiance of its winter sun.

Monthly Sunshine Duration in Gangneung: December Highlighted

The December sunshine duration represents the total number of hours Gangneung 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.
JanFebMarAprMayJunJulAugSepOctNovDec195h239h268h285h303h312h285h267h250h248h235h240h
Data source: Gangneung December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Gangneung During December

In Gangneung, South Korea, December brings a delightful twist to the winter season with a 64% chance of sunny weather. This marks a slight increase from the previous month, November, which stands at 63%, showcasing a notable trend of improved sunshine as the year draws to a close. While the warmer months see a dip in sunny days—plummeting to just 19% in August—the winter months tend to bounce back, with January maintaining a solid 62% chance of sun. As the year transitions from autumn to winter, sunlight in December not only enhances the seasonal beauty but also offers a more cheerful outdoor experience, making it an appealing time to explore the coastal charm of Gangneung.

Percentage of Sunny Days in December in Gangneung

The chart illustrates the percentage of sunny days in Gangneung 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 Gangneung experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec62%59%45%44%39%32%28%19%32%42%63%64%
Data source: Gangneung December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Gangneung in December

In Gangneung, South Korea, the daylight duration shifts throughout the year, creating a distinct seasonal rhythm. December marks a return to shorter days, with only 9 hours of daylight, mirroring the low light of January. This winter trend follows a gradual increase in daylight from the depths of winter, where the days started to lengthen from just 9 hours in January to a peak of 14 hours in both June and July. As the year progresses from March’s 11 hours to April’s 13 hours, the blossoming warmth of spring gives way to the generous brightness of summer. However, as fall approaches, daylight begins its slow decline, leading back into the shorter winter months. The pattern underscores a clear progression of daylight, intimately tied to the changing seasons, offering both a visual and emotional landscape throughout the year.

Average Daylight Hours in Gangneung for December

The chart illustrates the variation in daylight duration in Gangneung 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 12m14h 43m14h 27m13h 33m12h 23m11h 11m10h 7m9h 35m
Data source: Gangneung daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Gangneung

As December rolls into Gangneung, the coastal city experiences a notable resurgence in wind activity, with average speeds climbing back to 3.8 m/s (8 mph), mirroring January's brisk conditions. This end-of-year wind pattern reflects a robust shift from the summer months, where winds often dwindle to a gentle 1.7 m/s (4 mph) in July. The transition from late autumn to winter is particularly striking; after a brief lull in windy weather through June and July, December's gusts bring a refreshing chill, invigorating the atmosphere. This uptick in wind speed not only signals the approach of winter but also enhances the scenic beauty of Gangneung's coastal vistas, enticing visitors to embrace the brisk air and the stunning winter landscapes.

Average December Wind Speed in Gangneung

The chart displays monthly wind speed patterns in Gangneung, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.83.72.92.83.02.11.72.12.32.33.73.8 m/s
Data source: Gangneung December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Gangneung Compares to Other Months

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

In December, temperatures in Gangneung range from a minimum of -19°C (-3°F) to a maximum of 13°C (55°F), resulting in an average temperature of -1°C (31°F). The month experiences modest precipitation, totaling 21 mm (0.8 in) over 3 days, with a relatively high humidity level of 76%. Conversely, January sees a slightly colder average temperature of -3°C (28°F), with maximums reaching 9°C (49°F) and the same minimum of -19°C (-2°F). This month also experiences increased precipitation, totaling 40 mm (1.6 in) over 4 days, while humidity drops to 71%. For more details on January weather in Gangneung, visit Gangneung weather in January.

December and February present somewhat similar average temperatures, both hovering around -1°C (31°F). However, December tends to be colder overall, with minimum temperatures dropping to -19°C (-3°F), compared to February's minimum of -17°C (1°F). February also sees slightly higher maximum temperatures, reaching up to 16°C (62°F) against December's peak of 13°C (55°F). In terms of precipitation, February experiences more rainfall, accumulating 28 mm (1.1 in) over 4 days, while December records 21 mm (0.8 in) over just 3 days. Additionally, February enjoys lower humidity levels at 66%, compared to December’s 76%. For a more detailed comparison, check the Gangneung weather in February.

In December, temperatures can plummet to a minimum of -19°C (-3°F) and average around -1°C (31°F), with a maximum of 13°C (55°F). The weather is relatively dry, with only 21 mm (0.8 in) of precipitation over three days and humidity levels averaging at 76%. In contrast, March sees a noticeable warming trend, where temperatures range from a minimum of -12°C (10°F) to an average of 5°C (42°F) and can reach up to 20°C (69°F). However, March is wetter, with 85 mm (3.4 in) of precipitation occurring over nine days and lower humidity at 64%. For those interested in the specifics of March weather, more information can be found at Gangneung weather in March.

December and April present contrasting weather experiences. In December, temperatures can plummet to a chilly minimum of -19°C (-3°F), with an average temperature of just -1°C (31°F) and a maximum of 13°C (55°F). The month sees limited precipitation, averaging only 21 mm (0.8 in) over just three days, while humidity hovers around 76%. In contrast, April experiences a milder climate, with temperatures ranging from a minimum of -2°C (29°F) to a comfortable average of 11°C (51°F) and a maximum of 27°C (81°F). This month is much wetter, receiving 94 mm (3.7 in) of precipitation across nine days, along with a slightly lower humidity level of 74%. For more details on April weather, visit Gangneung weather in April.

December and May present stark contrasts in weather conditions. In December, temperatures can drop as low as -19°C (-3°F), with an average of -1°C (31°F) and a maximum of 13°C (55°F), accompanied by relatively low precipitation of 21 mm (0.8 in) over just three days. The humidity level sits at 76%, contributing to the cold, crisp atmosphere typical of winter. In contrast, May experiences milder weather with minimum temperatures around 4°C (39°F) and average highs reaching 30°C (87°F). This month receives significantly more rainfall, totaling 90 mm (3.5 in) across eight days, with humidity slightly higher at 79%. For those interested in detailed insights, check out Gangneung weather in May.

The weather in December and June presents a stark contrast. December sees cold temperatures, with a minimum of -19°C (−3°F) and an average of -1°C (31°F), while June enjoys milder weather, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 31°C (87°F). Precipitation patterns also differ significantly; December has only 21 mm (0.8 in) of rain over just three days, whereas June experiences considerably higher rainfall of 85 mm (3.3 in) over ten days. Additionally, while humidity is relatively high in both months at 76% in December and 82% in June, the overall feel of each season is quite different, with June's warmth contrasting with December's chill. For more details, visit Gangneung weather in June.

The weather in December is starkly different from that of July in Gangneung. In December, temperatures can drop to a chilling minimum of -19°C (−3°F), with an average of -1°C (31°F) and a maximum of 13°C (55°F). The month typically experiences low precipitation, totaling just 21 mm (0.8 in) over about 3 days, along with a humidity level of 76%. In contrast, July brings much warmer conditions, with temperatures ranging from a minimum of 13°C (57°F) to a scorching maximum of 33°C (93°F) and an average of 23°C (73°F). This month is also marked by significant rainfall, with 243 mm (9.6 in) of precipitation falling over 17 days, and humidity soaring to 91%. For more details on July weather in Gangneung, visit Gangneung weather in July.

December and August present strikingly contrasting weather conditions. In December, temperatures dip significantly, with a minimum of -19°C (−3°F) and an average around -1°C (31°F)—perfect for winter activities. The month experiences minimal precipitation of 21 mm (0.8 in) over just three days, and humidity levels sit at 76%, contributing to a crisp, cold atmosphere. In contrast, August boasts a much warmer climate, with temperatures ranging from a minimum of 15°C (58°F) to a sizzling maximum of 33°C (92°F) and an average of 23°C (75°F). This summer month sees a substantial increase in rainfall, with 246 mm (9.7 in) spread over 20 days, and humidity levels reach 91%, resulting in a muggy, tropical feel. For more detailed insights on August weather, visit Gangneung weather in August.

December and September showcase stark contrasts in weather conditions. December brings frigid temperatures, with averages around -1°C (31°F), and occasionally dipping as low as -19°C (-3°F). In this month, precipitation is minimal, totaling only 21 mm (0.8 in) over just three days. With humidity levels around 76%, the air feels quite chilly. In contrast, September is mild and relatively warm, featuring average temperatures of 18°C (65°F) and highs reaching up to 28°C (83°F). This month experiences significantly more rainfall, with 205 mm (8.1 in) spread across 13 days, and a humidity level similar at 77%. For a detailed look at the weather specifics, you can check Gangneung weather in September.

The weather in December is markedly colder than in October, with temperatures ranging from a minimum of -19°C (-3°F) to a maximum of 13°C (55°F). In contrast, October enjoys milder conditions, with temperatures varying from a minimum of 0°C (33°F) to a maximum of 27°C (80°F). Additionally, October is significantly wetter, receiving 132 mm (5.2 in) of precipitation over 10 days, compared to December's lower 21 mm (0.8 in) spread over just 3 days. Humidity levels are fairly similar, hovering around 76% in December and 78% in October. For a more detailed look at October's climate, you can visit Gangneung weather in October.

December’s weather is significantly colder than November’s, with average temperatures dropping from November's mild 6°C (44°F) to a chilly -1°C (31°F) in December. The minimum temperature in December plunges to -19°C (-3°F), compared to November's minimum of -7°C (20°F), indicating a stark shift towards winter conditions. Additionally, while November experiences more precipitation at 47 mm (1.9 in) over 6 days, December sees less rainfall at 21 mm (0.8 in) over just 3 days, resulting in slightly lower humidity levels of 76% compared to November's 80%. For those interested in more details about the November weather, you can find additional information here.

Compare Gangneung's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Gangneung

As December unfolds in Gangneung, the city experiences a distinct shift from the milder months, characterized by chilling temperatures and an uptick in humidity. The cold sets in, with average temperatures dropping to a mere -1°C (31°F), while the maximum rarely breaches 13°C (55°F). The month stands out with its relatively low precipitation—just 21 mm over three days, making for crisp, clear weather that invites exploration amidst the scenic winter landscape. If you're planning a visit, understanding how December contrasts with other seasons is essential for enjoying all that Gangneung has to offer. For more details, check out Gangneung Climate.