December Weather in Gwangju, South Korea

Last updated: October 30, 2025

December in Gwangju, South Korea is characterized by a significant drop in temperatures, with maximums reaching a mild 18°C (65°F) and plunging to a chilly minimum of -14°C (6°F). The average temperature hovers around 2°C (36°F), providing a crisp backdrop for the winter season. Rainfall is relatively modest, with an average precipitation of 29 mm (1.2 in) spread over just 5 days, while the humidity remains notably high at 73%. This month presents a blend of cold, occasional moisture, and a hint of warmth — a true reflection of winter’s embrace in this vibrant city.

December Temperature in Gwangju

In December, Gwangju, South Korea, experiences a significant drop in temperatures as winter settles in. The month opens with chillier nights, where minimum temperatures can plunge to -14°C (6°F). During the day, the mercury hovers around an average of 2°C (36°F), providing a stark contrast to the milder weather of the preceding months. While daytime highs can reach up to 18°C (65°F), the overall chill marks a transition into the cold season. This pattern highlights the sharp contrasts we see as the year ends, moving from the comfortable weather of autumn into the heart of winter, showcasing Gwangju's distinctive seasonal shifts.

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

The chart illustrates December temperature patterns in Gwangju, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gwangju, December typically has an average temperature of 2°C (36°F), with highs reaching up to 18°C (65°F) and lows dropping to around -14°C (6°F).
JanFebMarAprMayJunJulAugSepOctNovDec323646556472788070594735
Data source: Temperature data for Gwangju 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 Gwangju

In December, Gwangju, South Korea, experiences relatively low precipitation, with 29 mm (1.2 in) of rain falling over an average of only 5 days. This marks a slight decrease from the previous month's 34 mm (1.3 in), reflecting the overall drop in rainfall as the year draws to a close. As temperatures cool and winter sets in, December's precipitation remains among the lightest of the year, a contrast to the saturation seen in the summer months when rainfall can exceed 200 mm. This trend highlights Gwangju's seasonal variability, showcasing dry conditions and minimal rain, which can provide a serene backdrop to the city's winter landscape.

December Precipitation Trends in Gwangju

The chart displays monthly precipitation patterns in Gwangju, 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 Gwangju, December typically receives around 29 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec3133706692157242199204743430
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Gwangju

In Gwangju, South Korea, December marks a subtle dip in humidity, settling around 73%. This month transitions from the steamy heights of summer, where humidity peaks at an impressive 95% in July, down through the cooler months. A noticeable trend emerges as humidity begins to rise in the spring, with levels reaching 85% in May, then peaking in early summer. As autumn sets in, moisture content gradually declines, with November at 76%, leading into December's moderate levels. This consistent ebb and flow illustrates Gwangju's distinct seasonal shifts, where the air remains comfortably humid, inviting residents and visitors to bask in the city’s refreshing winter atmosphere.

December Average Humidity in Gwangju

This chart illustrates the average monthly humidity levels in Gwangju, 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 Gwangju is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%68%67%78%85%87%95%93%80%78%76%73%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Gwangju

In December, Gwangju experiences a UV Index of 3, placing it in the moderate exposure category. With a burn time of around 30 minutes, this month marks a notable decline from the extreme levels seen in the sweltering summer months, where indices soared to 12. This trend reflects a gradual drop from a high of 10 in May to a more manageable level, making December a more forgiving time for outdoor activities. As the year concludes, residents and visitors can enjoy the milder sun without the intense risks of earlier months. For more information about daily UV levels, visit Gwangju UV Index.

Maximum UV Index Levels in Gwangju for December

The chart shows the monthly maximum UV Index (UVI) for Gwangju 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 Gwangju typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec45791011121210753
Data source: Gwangju 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 Gwangju

In Gwangju, South Korea, the sun shines generously throughout the year, with December boasting 231 hours of sunlight. Although this is a dip from the vibrant mid-year peak in June, where daylight reaches 308 hours, it still reflects the region's overall trend of abundant sunshine. The gradual increase in hours from January's low of 190 hours to May's impressive 305 hours illustrates the welcoming warmth that characterizes Gwangju’s seasons. As the year winds down, December’s light serves as a gentle reminder that, despite the colder temperatures, the city remains cloaked in a soft halo of sunlight, closing the year on a bright note before the winter chill fully settles in.

Monthly Sunshine Duration in Gwangju: December Highlighted

The December sunshine duration represents the total number of hours Gwangju 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.
JanFebMarAprMayJunJulAugSepOctNovDec190h236h276h288h305h308h292h302h258h268h237h231h
Data source: Gwangju December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Gwangju During December

In December, Gwangju, South Korea, experiences a 49% chance of sunny weather, marking a slight decline from the preceding month but still offering a fair opportunity for clear skies. This percentage positions December among the more favorable months for sunshine, especially when compared to the gloomier summer months of July and August, where the likelihood drops to just 17% and 26%, respectively. As the year transitions towards winter, the chance of sunlight remains relatively stable, reflecting a trend of increasing sunny days from October's 47% and November's 53%. Thus, while December may not promise a sun-soaked holiday, it certainly holds its own against the more overcast months earlier in the year.

Percentage of Sunny Days in December in Gwangju

The chart illustrates the percentage of sunny days in Gwangju 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 Gwangju experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%43%32%40%38%29%17%26%29%48%54%49%
Data source: Gwangju December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Gwangju in December

As December rolls into Gwangju, South Korea, daylight hours take a noticeable dip, with just 9 hours of sunlight illuminating the day. This reduction marks a consistent trend as the year transitions from the brighter months of spring and summer—where daylight reaches a peak of 14 hours in June and July—toward the shorter days of winter. Following November's 10 hours, the diminishing light serves as a reminder of winter's grasp, creating a cozy atmosphere as the city embraces the festive season. The gradual ebb of daylight manifests a rhythmic cycle that Gwangju residents have come to anticipate, highlighting the changes in nature and the passage of time throughout the year.

Average Daylight Hours in Gwangju for December

The chart illustrates the variation in daylight duration in Gwangju throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 4m10h 53m11h 58m13h 4m14h14h 28m14h 14m13h 25m12h 22m11h 16m10h 18m9h 49m
Data source: Gwangju daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Gwangju

In December, Gwangju experiences a brisk average wind speed of 2.7 m/s (6 mph), marking a subtle uptick from the preceding months. This shift reflects a seasonal trend where wind speeds tend to increase as temperatures drop, providing a refreshing contrast to the cold. Notably, December's winds are stronger than those in the summer months, where speeds dip to their lowest, particularly in July and August at 2.0 m/s and 1.7 m/s respectively. The crisp air encourages vibrant winter activities and adds to the enchanting atmosphere of the season, reminding residents and visitors alike that even in a city known for its mild winters, the December wind sings a different tune.

Average December Wind Speed in Gwangju

The chart displays monthly wind speed patterns in Gwangju, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.63.02.42.82.81.92.01.72.12.02.42.7 m/s
Data source: Gwangju December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Gwangju Compares to Other Months

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

December and January weather in Gwangju presents a notable contrast in temperatures. In December, temperatures range from a minimum of -14°C (6°F) to a maximum of 18°C (65°F), with an average of 2°C (36°F) and a relatively high humidity level of 73%. In contrast, January sees even colder temperatures, with lows dropping to -22°C (-8°F) and a mean temperature of 0°C (33°F), while highs reach only 17°C (62°F). Both months experience similar precipitation with about 29-31 mm (1.2 in) over five days, but January is characterized by slightly lower humidity at 71%. For more details, you can visit Gwangju weather in January.

December and February exhibit similar average temperatures, with both months averaging around 2°C (36°F). However, December tends to be slightly colder, featuring a minimum temperature of -14°C (6°F) compared to February's -12°C (12°F). Notably, February experiences a higher maximum temperature of 22°C (72°F) compared to December's 18°C (65°F). Precipitation levels are also comparable, with December receiving 29 mm (1.2 in) and February recording 33 mm (1.3 in), both spread over five days. Humidity in February is lower at 68%, while December's humidity averages 73%. For more detailed insights into February's weather, you can check Gwangju weather in February.

In December, the weather can be quite chilly, with temperatures ranging between a minimum of -14°C (6°F) and a maximum of 18°C (65°F), averaging around 2°C (36°F). The month sees about 29 mm (1.2 in) of precipitation over approximately 5 days, with humidity levels around 73%. In contrast, March heralds a noticeable warming trend, featuring temperatures from a low of -5°C (23°F) to a high of 23°C (74°F), with an average of 8°C (46°F). While precipitation increases to 70 mm (2.8 in) over 7 days, humidity remains slightly lower at 67%. For more detailed weather information about March, you can visit Gwangju weather in March.

In December, temperatures in Gwangju can dip as low as -14°C (6°F), with an average of 2°C (36°F) and a maximum reaching 18°C (65°F). The month typically sees about 29 mm (1.2 in) of precipitation over 5 days, and humidity levels hover around 73%. In contrast, April experiences a milder climate, with minimum temperatures around -3°C (26°F) and averages of 13°C (55°F), peaking at 28°C (83°F). Precipitation increases to 66 mm (2.6 in) across 6 days, accompanied by slightly higher humidity at 78%. For more detailed information, you can visit Gwangju weather in April.

When comparing the weather in December and May, it is clear that these two months present strikingly different climates. December typically sees temperatures ranging from a chilling minimum of -14°C (6°F) to a mild maximum of 18°C (65°F), with an average temperature of 2°C (36°F). The month experiences relatively low precipitation of 29 mm (1.2 in) over about 5 days and maintains a humidity level of 73%.

In contrast, May brings much warmer weather, with temperatures spanning from a minimum of 2°C (36°F) and soaring to a maximum of 32°C (89°F), yielding an average temperature of 18°C (64°F). This month is wetter, receiving 92 mm (3.6 in) of precipitation, though the rain falls over 8 days, which likely contributes to the higher humidity of 85%. The change from the winter chill of December to the warmth and moisture of May is quite pronounced and reflects the transition from a cold to a more temperate season. For more insights into how the weather changes during this month, check out Gwangju weather in May.

In December, Gwangju experiences chilly temperatures, with a minimum of -14°C (6°F) and an average of 2°C (36°F), peaking at a mild 18°C (65°F). The month sees minimal precipitation, with just 29 mm (1.2 in) spread over about 5 days, accompanied by a humidity level of 73%. In contrast, June brings a much warmer climate, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 33°C (91°F) and an average of 22°C (72°F). This month is considerably wetter, receiving 157 mm (6.2 in) of rainfall over 9 days, along with increased humidity at 87%. For more detailed information, check out Gwangju weather in June.

December and July present quite contrasting weather patterns. In December, temperatures can drop as low as -14°C (6°F), with an average of around 2°C (36°F) and a maximum of 18°C (65°F). The month experiences relatively low precipitation of 29 mm (1.2 in) over about 5 days, alongside a humidity level of 73%. In stark contrast, July offers much warmer conditions with minimum temperatures around 16°C (62°F), average highs of 25°C (78°F), and peaks reaching up to 35°C (96°F). However, July is also characterized by significantly higher precipitation, with 242 mm (9.5 in) spread over 17 days, and a much higher humidity level of 95%. For more detailed weather information, you can check Gwangju weather in July.

December and August present stark contrasts in weather. In December, temperatures can plunge to a minimum of -14°C (6°F), with an average of 2°C (36°F) and occasional highs reaching 18°C (65°F). The month experiences about 29 mm (1.2 in) of precipitation over roughly 5 days, coupled with a humidity level of 73%. In stark opposition, August boasts much milder conditions with temperatures ranging from a minimum of 14°C (58°F) to an average of 26°C (80°F), and extreme highs that can soar to 37°C (99°F). This month sees significantly higher rainfall, totaling 199 mm (7.8 in) spread across about 15 days, and increased humidity levels at 93%. For more details on weather specifics, you can check out Gwangju weather in August.

The weather in December contrasts sharply with September, showcasing a significant shift in temperatures and precipitation. In December, temperatures vary from a frigid minimum of -14°C (6°F) to a mild average of 2°C (36°F) and a maximum of 18°C (65°F). This month experiences relatively low precipitation of 29 mm (1.2 in) over just 5 days, with humidity levels at around 73%. In contrast, September boasts much warmer temperatures, with a minimum of 9°C (48°F), an average of 21°C (71°F), and a peak of 32°C (89°F). Precipitation is notably higher in September, totaling 204 mm (8.0 in) across 11 days, accompanied by slightly higher humidity at 80%. For more details on the typical conditions, you can check Gwangju weather in September.

In comparing the weather between December and October, December presents a much colder atmosphere, with temperatures ranging from a brisk minimum of -14°C (6°F) to a mild maximum of 18°C (65°F) and an average of about 2°C (36°F). In contrast, October offers more temperate conditions, with a comfortable average of 15°C (59°F) and temperatures peaking at 29°C (85°F). While December sees only 29 mm (1.2 in) of precipitation over 5 days, October experiences significantly heavier rainfall of 74 mm (2.9 in) on 6 days, accompanied by slightly higher humidity levels, peaking at 78%. For more details about the weather specifics in October, you can check Gwangju weather in October.

In comparing the weather between December and November, December showcases a wider temperature variation, with minimums plummeting to -14°C (6°F) and maximums reaching 18°C (65°F), resulting in an average of 2°C (36°F). In contrast, November experiences milder conditions, where temperatures range from a low of -4°C (25°F) to a high of 22°C (72°F), leading to an average temperature of 8°C (47°F). Precipitation is slightly less in December, totaling 29 mm (1.2 in) over 5 days, compared to November's 34 mm (1.3 in) over the same number of days. Additionally, December has a humidity level of 73%, just a touch lower than November's 76%. For a more detailed look at November weather, you can refer to Gwangju weather in November.

Compare Gwangju's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Gwangju

As December settles in Gwangju, the city experiences a notable shift in weather patterns compared to previous months. Temperatures dip significantly, showcasing a crisp chill with variations from mild daytime highs to frosty lows. The onset of winter is marked by increased humidity levels, which can make the cold feel even more biting. With approximately five days of precipitation, December is drier than the rainy summer months yet brings its own brand of winter moisture. If you seek to understand how Gwangju's climate evolves throughout the year, visit Gwangju Climate for a comprehensive overview.