January Weather in Gwangju, South Korea

Last updated: October 30, 2025

January in Gwangju, South Korea presents a striking winter landscape characterized by a maximum temperature of 17°C (62°F) and a minimum dipping to -22°C (-8°F). The month showcases an average temperature hovering around 0°C (33°F), creating a chilly but invigorating atmosphere. With 31 mm (1.2 inches) of precipitation over five days, residents and visitors can expect occasional snowfall, contributing to the winter charm. The humidity level stands at an inviting 71%, making January in Gwangju a time of serene beauty and a perfect opportunity to experience the crisp air and tranquil ambiance of the season.

January Temperature in Gwangju

In Gwangju, South Korea, January showcases a dramatic temperature range, with lows dipping to a frigid -22°C (-8°F) and highs reaching a mild 17°C (62°F). The average temperature hovers around 0°C (33°F), marking it as one of the coldest months of the year. As winter gives way to early spring, February sees a slight improvement, with temperatures beginning to rise as minimums moderate to -12°C (12°F) and maximums climbing to 22°C (72°F). This upward trend continues into March, as Gwangju transitions from freezing nights to more pleasant daytime temperatures, reflecting a gradual warming that hints at the impending arrival of spring. Overall, January sets the stage for this shift, juxtaposing the bitter cold of winter against the promise of balmy days ahead.

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

The chart illustrates January 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, January typically has an average temperature of 0°C (33°F), with highs reaching up to 17°C (62°F) and lows dropping to around -22°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec323646556472788070594735
Data source: Temperature data for Gwangju generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Gwangju

In January, Gwangju experiences relatively low precipitation, with just 31 mm (1.2 in) of rain falling over about 5 days. This sets the tone for a dry start to the year, contrasting sharply with the wetter months ahead. As winter gives way to spring, the precipitation gradually increases; February sees a slight uptick to 33 mm (1.3 in), followed by a notable jump to 70 mm (2.8 in) in March. The trend continues upward, especially from June to August when the region faces its most significant rainfall, with July receiving a staggering 242 mm (9.5 in) over 17 days. This pattern illustrates a shift from January's dry days to the monsoon-like conditions of mid-summer, highlighting Gwangju's distinct seasonal variation in precipitation. By the time winter returns, rainfall decreases again, returning to lighter levels seen at the year's start, with December closing the year at just 29 mm (1.2 in). Overall, the data reveals a clear seasonal rhythm, where dry beginnings give way to wetter months, creating a dynamic climate throughout the year.

January Precipitation Trends in Gwangju

The chart displays monthly precipitation patterns in Gwangju, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Gwangju, January typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec3133706692157242199204743430
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Gwangju

In January, Gwangju experiences a relatively high humidity level of 71%, setting the stage for the winter season. As the months progress, humidity begins its downward trend, dipping to 68% in February and further down to 67% in March. This decline offers a brief respite before the humidity spikes dramatically in the warmer months. By April, it surges to 78%, and from May onwards, it consistently hovers above 80%, peaking at a sweltering 95% in July. The peak summer months of July and August bring some of the highest humidity levels, making the air feel muggy and oppressive. After this peak, humidity levels gradually fall again, with September at 80% and settling around the 73% mark by December. This cyclical pattern highlights Gwangju's transition from cooler, drier winters to hot, humid summers, emphasizing the region's notable climatic shifts throughout the year.

January Average Humidity in Gwangju

This chart illustrates the average monthly humidity levels in Gwangju, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Gwangju is approximately 71%, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Gwangju

In January, Gwangju, South Korea, experiences a moderate UV Index of 4, suggesting that while sun exposure is generally safe, it's wise to be cautious, especially if you're outside for longer than 30 minutes. As the season transitions into February, the UV Index rises slightly to 5, maintaining that moderate category, indicating a similar level of precaution. This upward trend continues into March, where the UV Index spikes to 7, marking the start of high exposure levels and decreasing the safe sunburn time to 25 minutes. The months ahead see a concerning escalation; by April and May, UV levels soar to 9 and 10, respectively, categorized as very high, which shortens burn time to merely 15 minutes. The summer months even reach extreme levels, peaking at 12 in both July and August, where every minute counts in sun exposure. As the year progresses, a slight decline brings the UV Index back to 10 in September, before tapering off to moderate levels again by November and December. This cyclical pattern emphasizes the importance of sun protection and awareness throughout the months. To stay informed about the UV Index in Gwangju, please visit Gwangju UV Index.

Maximum UV Index Levels in Gwangju for January

The chart shows the monthly maximum UV Index (UVI) for Gwangju in January, 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 January, the maximum UV index in Gwangju typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec45791011121210753
Data source: Gwangju January 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.

January Sunshine in Gwangju

In January, Gwangju basks in about 190 hours of sunshine, marking the start of the year with a gentle glow that gradually intensifies. As winter transitions into spring, February sees a notable increase to 236 hours, hinting at the promise of warmer days ahead. By March and April, this upward trend accelerates, peaking at 288 hours in April as blossoms begin to paint the landscape. The sunshine continues to shine generously through May and June, with 305 and 308 hours respectively, creating vibrant, sun-filled days. Even in the heat of July and August, the sun remains a steadfast companion, contributing 292 and 302 hours respectively. As autumn approaches, the sunlight begins to gracefully wane, evidenced by a drop to 258 hours in September. By the time December rolls around, Gwangju ends the year with 231 hours of sunshine, offering a gentle farewell to the year, but always hinting at the brighter days that lie ahead.

Monthly Sunshine Duration in Gwangju: January Highlighted

The January sunshine duration represents the total number of hours Gwangju experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec190h236h276h288h305h308h292h302h258h268h237h231h
Data source: Gwangju January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Gwangju During January

In Gwangju, South Korea, January typically welcomes a 38% chance of sunny weather, setting the stage for an intriguing winter month. As the year progresses into February, the likelihood of sunshine increases slightly to 43%, hinting at a potential warming trend. However, this sunny disposition fluctuates in the following months, dipping to 32% in March before rising again. Interestingly, April and May hold steady at 40% and 38%, respectively, showcasing a balance before the summer months arrive. The summer sees a sharp drop, especially in July, where sunny chances plummet to a mere 17%. This trend continues into August and September, only to rebound in the fall months of October and November, where the probabilities rise to 47% and 53%, respectively. Thus, while January may not boast the sunniest days of the year, it serves as a precursor to a dynamic and shifting seasonal pattern in Gwangju's weather.

Percentage of Sunny Days in January in Gwangju

The chart illustrates the percentage of sunny days in Gwangju throughout the year, with January 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 January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Gwangju in January

In Gwangju, South Korea, January heralds the year with 10 hours of daylight, a reflection of winter's lingering embrace. As the months progress into February, daylight remains steady at 10 hours, but with the arrival of March, residents delight in an increase to 11 hours. This gradual growth continues through the spring, peaking in May with 14 hours, providing ample time for outdoor activities under the vibrant sun. Summer sustains this generous daylight, holding steady throughout June and July. However, as the seasons shift, daylight begins to wane, subtly decreasing to 13 hours in August and tapering off through the fall, landing at 10 hours in November and further dwindling to 9 hours by December. This cycle of daylight not only marks the rhythm of the seasons but also invites Gwangju’s inhabitants to savor every moment of sunlight throughout the year.

Average Daylight Hours in Gwangju for January

The chart illustrates the variation in daylight duration in Gwangju throughout the year, with January 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.

January Winds in Gwangju

In Gwangju, South Korea, the January wind whispers at an average speed of 2.6 m/s (6 mph), setting the tone for the winter months. As the year progresses into February, the wind picks up slightly to 3.0 m/s, but then in March, it dips again to 2.4 m/s, showcasing a bit of variability in early spring. The winds stabilize through the late spring and early summer months, with April and May holding steady at 2.8 m/s. However, the summer heat brings a calm, as June and July see a reduction to 1.9 m/s and 2.0 m/s, respectively. By August, the breeze softens even further to 1.7 m/s, indicating the stillness of the hottest season. As autumn sets in, the winds regain some momentum, peaking again at 2.4 m/s in November before wrapping up the year with a slight increase to 2.7 m/s in December. Overall, Gwangju experiences a gentle ebb and flow of winds, particularly noticeable between the seasons.

Average January Wind Speed in Gwangju

The chart displays monthly wind speed patterns in Gwangju, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.6 m/s3.02.42.82.81.92.01.72.12.02.42.7
Data source: Gwangju January wind data, generated using information from the Copernicus Climate Change Service.

How January 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 January’s weather to other months in Gwangju, focusing on differences in temperature, rainfall, humidity, and UV levels.

In January, the temperatures can be quite harsh, with a minimum of -22°C (-8°F) and an average of 0°C (33°F), peaking at a maximum of 17°C (62°F). This month typically experiences about 31 mm (1.2 in) of precipitation over five days, accompanied by a humidity level of 71%. In contrast, February shows a noticeable warming trend, with temperatures ranging from a minimum of -12°C (12°F) to a maximum of 22°C (72°F), averaging around 2°C (36°F). The precipitation slightly increases to 33 mm (1.3 in) across the same number of days, and humidity dips to 68%. For a detailed look at February weather, you can visit Gwangju weather in February.

In January, the weather is quite frigid, with temperatures ranging from a chilling -22°C (-8°F) to a mild 17°C (62°F), averaging around 0°C (33°F). The month sees approximately 31 mm (1.2 in) of precipitation over about 5 days, alongside a relatively high humidity level of 71%.

In contrast, March brings a much milder climate, with temperatures varying from -5°C (23°F) to a pleasant 23°C (74°F), averaging 8°C (46°F). Precipitation increases to around 70 mm (2.8 in) over 7 days, while the humidity drops slightly to 67%. For more detailed information about Gwangju's weather during this time, you can check out Gwangju weather in March.

In January, temperatures can be quite harsh, with a minimum of -22°C (-8°F) and an average around 0°C (33°F), while maximums reach up to 17°C (62°F). The month experiences relatively low precipitation at 31 mm (1.2 in) over about 5 days, and the humidity hovers at 71%. In contrast, April brings a notable shift, featuring a minimum temperature of -3°C (26°F) and an average of 13°C (55°F), with highs soaring to 28°C (83°F). Precipitation increases to 66 mm (2.6 in) across 6 days, accompanied by a rise in humidity to 78%. For more detailed insights on the weather during April, check out Gwangju weather in April.

January and May present contrasting weather patterns. In January, temperatures can plummet to a minimum of -22°C (-8°F), with an average temperature around 0°C (33°F) and a maximum reaching 17°C (62°F). This month experiences relatively low precipitation, totaling 31 mm (1.2 in) over about 5 days and a humidity level of 71%. In stark contrast, May boasts a much milder climate, with temperatures ranging from a minimum of 2°C (36°F) to an average of 18°C (64°F), peaking at 32°C (89°F). Additionally, May sees higher precipitation levels, amounting to 92 mm (3.6 in) over 8 days, along with increased humidity of 85%. For more details on the weather in May, visit Gwangju weather in May.

In January, Gwangju experiences a frigid climate, with temperatures ranging from a chilling -22°C (-8°F) at night to a mild 17°C (62°F) during the day, averaging around 0°C (33°F). The month sees modest precipitation of 31 mm (1.2 in) over approximately 5 days, and the humidity stands at 71%. In stark contrast, June brings a warmer and more humid atmosphere, with temperatures ranging from a comfortable 10°C (50°F) at night to a scorching 33°C (91°F) during the day, averaging 22°C (72°F). Rainfall significantly increases to 157 mm (6.2 in) over about 9 days, along with higher humidity at 87%. For more details on Gwangju's June weather, you can explore Gwangju weather in June.

January and July present a stark contrast in weather. In January, temperatures can plummet to as low as -22°C (-8°F), with an average chilling around 0°C (33°F) and a maximum reaching only 17°C (62°F). The month sees relatively low precipitation at 31 mm (1.2 in) over just five days, accompanied by a humidity level of 71%. In sharp contrast, July brings warmth with temperatures ranging from a minimum of 16°C (62°F) to a scorching maximum of 35°C (96°F), averaging a comfortable 25°C (78°F). However, this month is marked by heavy rainfall, accumulating 242 mm (9.5 in) over 17 days and high humidity at 95%. For more details, check out Gwangju weather in July.

January and August present stark contrasts in weather conditions. In January, temperatures can plunge as low as -22°C (-8°F), with a chilly average of around 0°C (33°F) and occasional peaks reaching 17°C (62°F). The month experiences limited precipitation at 31 mm (1.2 in) over just 5 days, accompanied by relatively high humidity levels at 71%. In stark contrast, August boasts much warmer temperatures, with minimums around 14°C (58°F) and average highs of 26°C (80°F), soaring to a maximum of 37°C (99°F). It is also significantly wetter, with precipitation totaling 199 mm (7.8 in) across 15 days, and humidity levels climbing to a humid 93%. For more detailed information on the August weather specifically, you can check Gwangju weather in August.

January and September present stark contrasts in weather. In January, temperatures can plummet to a minimum of -22°C (-8°F), with an average of 0°C (33°F) and a maximum of 17°C (62°F). The month is characterized by low precipitation (31 mm over 5 days) and a humidity level of 71%. Conversely, September boasts a much milder climate, featuring minimum temperatures of 9°C (48°F) and reaching up to 32°C (89°F) on warmer days, with an average of 21°C (71°F). This month experiences significantly higher rainfall, accumulating 204 mm over 11 days, and humidity rises to 80%. The difference in temperature and humidity illustrates the transition from the cold depths of winter to the warmth of early autumn. For more detailed information, check Gwangju weather in September.

January and October present strikingly different weather patterns. In January, temperatures plummet to a minimum of -22°C (-8°F), with an average around 0°C (33°F) and a maximum of 17°C (62°F), creating a chilly environment with about 31 mm (1.2 in) of precipitation over 5 days and a humidity level of 71%. In contrast, October enjoys milder weather, with temperatures ranging from a minimum of 0°C (32°F) to a pleasant average of 15°C (59°F) and highs reaching 29°C (85°F). This month also experiences increased rainfall, totaling 74 mm (2.9 in) over 6 days, accompanied by higher humidity at 78%. To learn more about the climate specifics in October, visit Gwangju weather in October.

January and November present distinctly different weather patterns. In January, temperatures can drop as low as -22°C (-8°F) with an average temperature of around 0°C (33°F), while November sees milder conditions with a minimum of -4°C (25°F) and an average of 8°C (47°F). Both months receive similar levels of precipitation, with January at 31 mm (1.2 in) and November slightly higher at 34 mm (1.3 in), but November experiences more humidity at 76% compared to January's 71%. For more details, you can check out Gwangju weather in November.

When comparing the weather in January and December, it is evident that January tends to be colder, with average temperatures hovering around 0°C (33°F) compared to December's average of 2°C (36°F). January experiences even lower minimum temperatures, dropping to -22°C (-8°F), while December's lows reach a milder -14°C (6°F). Both months see similar precipitation, with January receiving 31 mm (1.2 in) and December just slightly less at 29 mm (1.2 in), occurring over five days in each month. Humidity levels are fairly consistent, with January at 71% and December slightly higher at 73%. For a more detailed overview of December weather, you can refer to Gwangju weather in December.

Compare Gwangju's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Gwangju

January in Gwangju presents a striking contrast to the other months of the year, with its chilly temperatures and notable humidity levels. While the maximum reaches a mild 17°C, the average dips significantly, offering a stark reminder that winter is in full swing. Unlike the warmer months that boast abundant sunshine and lighter rains, January experiences only about 31 mm of precipitation over five days, adding a crispness to the air rather than the heavy downpours seen in spring and summer. This blend of cold and moisture is characteristic of the winter season, making it a unique time to experience Gwangju. For more detailed information about the climate throughout the year, check out Gwangju Climate.