January Weather in Jeonju, South Korea

Last updated: October 30, 2025

In January, Jeonju, South Korea experiences a cool, crisp climate characterized by a maximum temperature of 16°C (60°F) and an average low of -1°C (31°F), dipping to a minimum of -19°C (-2°F). With 29 mm (1.1 in) of precipitation over 5 rainy days, this month typically sees a humidity level of around 71%, creating a chilly atmosphere. This blend of cool temperatures and occasional rainfall invites visitors to explore indoor attractions and savor local delicacies, making January a unique time to experience the charm of Jeonju.

January Temperature in Jeonju

In January, Jeonju, South Korea experiences a stark winter chill, with temperatures dipping as low as -19°C (-2°F), making it one of the coldest months of the year. The average temperature hovers around -1°C (31°F), while the maximum can surprisingly reach up to 16°C (60°F), indicating occasional warming spells amid the frost. This month sets the tone for the winter season, as temperatures gradually begin to rise heading into February, where minimums reach -14°C (7°F), but the average climbs slightly to 1°C (34°F). March heralds further warming, with the transition from winter to spring becoming evident as both average and maximum temperatures steadily increase. This trend of rising temperatures continues through the spring months, ultimately leading to the warm summer months where highs can soar to 37°C (99°F) in August. Thus, January serves as a poignant reminder of the drastic shifts in Jeonju’s climate, paving the way for the upcoming seasonal transformation.

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

The chart illustrates January temperature patterns in Jeonju, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jeonju, January typically has an average temperature of -1°C (31°F), with highs reaching up to 16°C (60°F) and lows dropping to around -19°C (-2°F).
JanFebMarAprMayJunJulAugSepOctNovDec313445546471777970584634
Data source: Temperature data for Jeonju 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.

January Precipitation in Jeonju

In January, Jeonju, South Korea experiences relatively mild precipitation, with an average of 29 mm (1.1 in) over just 5 days. This sets the stage for a gradual increase in both rainfall and rainy days as the year unfolds. By February, precipitation rises to 39 mm (1.5 in), mirroring the consistent trend of increasing moisture as winter transitions into spring. The months ahead witness a significant uptick, particularly by July when the region sees an impressive 261 mm (10.3 in), coinciding with the peak of the monsoon season. This upward trajectory of rainfall, coupled with an increase in rainy days, underscores Jeonju's shift from the drier winter months to the lush, wet summer, highlighting the region’s dynamic climate throughout the year.

January Precipitation Trends in Jeonju

The chart displays monthly precipitation patterns in Jeonju, 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 Jeonju, January typically receives around 29 mm (1.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec2939686390131261214201674231
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Jeonju

In Jeonju, South Korea, January brings a moderate humidity level of 71%, setting the stage for a winter that feels crisp yet damp. As the months progress, a notable trend emerges: humidity levels gradually decline to 68% in February and continue to decrease slightly to 67% in March. However, this is short-lived; come April, humidity surges back up to 78%, creating a noticeable shift as spring blooms. The warm months of May and June see a significant rise, with humidity peaking at 87% in June, and July reaching a sweltering 95%. This summer peak reflects the tropical conditions prevalent in the region. Following this, a gradual decrease sets in as fall approaches—humidity levels dip to 80% in September and further down to 73% by December, highlighting the seasonal ebb and flow of moisture in the air throughout the year.

January Average Humidity in Jeonju

This chart illustrates the average monthly humidity levels in Jeonju, 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 Jeonju 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 Jeonju

In January, Jeonju experiences a moderate UV Index of 4, indicating a safe level of sunlight exposure with a burn time of about 30 minutes. As the months progress, the UV Index steadily rises, peaking in June and July at an alarming 12 in the extreme category, where caution is essential to prevent sunburn in just 10 minutes. The trend showcases a notable increase in UV radiation from winter to summer, with March and April serving as transitional months—moving from a high index of 7 to a very high of 10. By November and December, conditions revert back to a more moderate level, urging residents and visitors alike to remain aware of the changing UV exposure throughout the year. For further details on UV levels, visit Jeonju UV Index.

Maximum UV Index Levels in Jeonju for January

The chart shows the monthly maximum UV Index (UVI) for Jeonju 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 Jeonju typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec457101011121210753
Data source: Jeonju 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 Jeonju

In January, Jeonju embraces its winter charm with 192 hours of sunshine, a stark contrast to the sunnier months that follow. As the year progresses, the sun shines brighter, peaking in May with an impressive 304 hours. This upward trend continues through June, where the city basks in 302 hours of warmth. However, as summer gives way to autumn, the hours start to taper off; July experiences a decrease to 272 hours, and by November, the daylight retreat is evident with just 236 hours. This cycle highlights Jeonju's transition from the crispness of winter into the vibrant days of spring and summer, before settling into the more subdued light of late autumn and winter again.

Monthly Sunshine Duration in Jeonju: January Highlighted

The January sunshine duration represents the total number of hours Jeonju 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.
JanFebMarAprMayJunJulAugSepOctNovDec192h238h277h283h304h302h272h286h246h264h236h235h
Data source: Jeonju January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Jeonju During January

In January, Jeonju, South Korea experiences a 41% chance of sunny weather, subtly setting the stage for a cold yet occasionally bright start to the year. This probability shows a notable increase as the season transitions into February, with sunny days rising to 47%. However, as spring approaches, the likelihood of clear skies dips slightly in March to 37%, suggesting a typical progression into a cloudier period. Interestingly, April and May mirror January’s sun probability at 41%, while the summer months see a significant decline, dropping to as low as 21% in July. The trend shifts again in the fall, as the chances of sun rise in October to 51%, peaking at 56% in November, before settling at 53% in December. Overall, while January may not boast the sunniest weather, it lays the groundwork for a brighter February, highlighting a dynamic interplay of seasonal changes in Jeonju’s climate.

Percentage of Sunny Days in January in Jeonju

The chart illustrates the percentage of sunny days in Jeonju 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 Jeonju experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec41%47%37%41%37%34%21%28%34%51%56%53%
Data source: Jeonju January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Jeonju in January

In Jeonju, South Korea, the daylight duration in January sees a consistent 10 hours of sunlight, a figure that remains unchanged through February. As spring approaches in March, the days gradually lengthen, gaining an additional hour of light, reaching 11 hours. This upward trend continues with the arrival of April and May, where daylight extends to 13 and then 14 hours, respectively, giving residents ample opportunity to enjoy the blossoming landscape. The longest days of the year settle in during the summer months of June, July, and August, maintaining that 14-hour mark, before gradually tapering off as autumn sets in. By September, daylight decreases to 12 hours, followed by a return to 11 hours in October, and finally back to 10 hours in November before December brings shorter days with just 9 hours of daylight. This cyclical pattern highlights the beautiful ebb and flow of light throughout the year, offering a captivating glimpse into the seasonal changes in Jeonju.

Average Daylight Hours in Jeonju for January

The chart illustrates the variation in daylight duration in Jeonju throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 1m10h 52m11h 58m13h 5m14h 3m14h 31m14h 17m13h 27m12h 22m11h 14m10h 16m9h 45m
Data source: Jeonju daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Jeonju

In January, Jeonju, South Korea, experiences a gentle average wind speed of 2.8 m/s (6 mph), setting a calm tone for the month. This serene airflow is consistent with April and May, where the winds also hover around the same speed, creating a pleasant atmosphere for residents and visitors alike. As winter transitions to spring, February sees a slight increase in wind speed to 3.1 m/s (7 mph)—the strongest of the season—before a dip in March to 2.4 m/s (5 mph), emphasizing a trend of fluctuating winds. Following this, the warmer months of summer exhibit a notable decrease, particularly in June, July, and August, where the average wind speeds settle around 1.9–2.0 m/s (4-5 mph), ushering in a quieter, warmer climate. This seasonal pattern reflects the dynamic nature of Jeonju's weather, crafting an inviting, albeit sometimes still, environment to enjoy the beauty of the city throughout the year.

Average January Wind Speed in Jeonju

The chart displays monthly wind speed patterns in Jeonju, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.8 m/s3.12.42.82.82.01.91.92.42.02.42.7
Data source: Jeonju January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Jeonju Compares to Other Months

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

January and February exhibit notable differences in weather conditions, although both months experience cold temperatures. In January, the minimum temperature drops to a frigid -19°C (-2°F), with an average temperature of -1°C (31°F) and a maximum reaching 16°C (60°F). January also sees a total precipitation of 29 mm (1.1 in) over five days, accompanied by a humidity level of 71%.

Conversely, February brings a slight warming trend, with minimum temperatures at -14°C (7°F) and an average of 1°C (34°F). The maximum temperature can rise significantly to 22°C (71°F). Precipitation increases slightly to 39 mm (1.5 in) over the same five days, while humidity decreases to 68%. For more detailed insights on February weather, you can visit Jeonju weather in February.

January and March present a notable shift in weather conditions. January experiences colder temperatures, with a minimum of -19°C (-2°F) and an average of -1°C (31°F), while March sees a rise, with a minimum of -5°C (24°F) and an average of 7°C (45°F). Precipitation is also more prominent in March, with 68 mm (2.7 in) falling over 8 days compared to January's 29 mm (1.1 in) over 5 days. Humidity remains relatively similar, with January at 71% and March slightly lower at 67%. For more detailed information, you can visit Jeonju weather in March.

January and April present stark contrasts in weather. January's frigid temperatures range from a chilling minimum of -19°C (-2°F) to a mild max of 16°C (60°F), with an average around -1°C (31°F). It sees relatively low precipitation, totaling 29 mm (1.1 in) over about five days, and maintains a humidity level of 71%. In contrast, April offers a more temperate experience, with temperatures spanning from -2°C (29°F) to a warm maximum of 28°C (83°F) and an average of 12°C (55°F). This month also brings increased precipitation, totaling 63 mm (2.5 in) over seven days, along with a higher humidity of 78%. To further explore the specifics of April's climate, you can visit Jeonju weather in April.

The weather in January is characterized by its cold temperatures, with a minimum of -19°C (-2°F) and an average of -1°C (31°F), contrasting sharply with May, which enjoys a milder climate featuring minimum temperatures of 3°C (38°F) and an average of 18°C (64°F). While January experiences limited precipitation at 29 mm (1.1 in) over about 5 days, May sees a significant increase in both rainfall and humidity, with 90 mm (3.5 in) of precipitation over 9 days and a humidity level of 85%. This shift from the harsh, frigid conditions of winter to the warm, humid atmosphere of late spring is quite remarkable and highlights the stark seasonal differences. For more details on May's weather, visit Jeonju weather in May.

January and June present strikingly contrasting weather conditions. In January, temperatures can plunge as low as -19°C (-2°F), with an average of -1°C (31°F), while June sees much milder temperatures ranging from a minimum of 10°C (51°F) to a maximum of 33°C (91°F). Precipitation also varies significantly between the two months; January experiences a modest 29 mm (1.1 in) of rain over just 5 days, whereas June receives a substantial 131 mm (5.2 in) spread across approximately 10 rainy days. Additionally, humidity levels spike in June to 87%, up from January's 71%, contributing to the warm, often steamy atmosphere typical of summer. For more information, you can visit Jeonju weather in June.

In January, the weather is sharply colder, with temperatures ranging from a chilling -19°C (-2°F) to a relatively mild maximum of 16°C (60°F). This month sees low precipitation levels of 29 mm (1.1 in) over about five days and a humidity level of 71%. In contrast, July experiences much warmer conditions, with temperatures varying from a minimum of 17°C (62°F) to a sizzling maximum of 35°C (95°F) and an average temperature of 25°C (77°F). Rainfall is significantly higher at 261 mm (10.3 in), occurring across 17 days, accompanied by high humidity at 95%. For more detailed insights, you can visit Jeonju weather in July.

The weather comparison between January and August reveals a striking contrast in temperatures and conditions. January experiences a chilling range, with minimum temperatures plummeting to -19°C (−2°F) and an average of -1°C (31°F), while August boasts much warmer conditions, with an impressive average of 26°C (79°F) and highs reaching up to 37°C (99°F). Precipitation also varies significantly; January sees only 29 mm (1.1 in) over 5 days, whereas August experiences a substantial 214 mm (8.4 in) across 17 days, accompanied by heightened humidity levels of 93%. For more insights on what to expect during this vibrant summer month, check out Jeonju weather in August.

January and September present strikingly different weather conditions. In January, temperatures can plummet to a minimum of -19°C (-2°F), with an average around -1°C (31°F) and occasional highs of 16°C (60°F). The month sees limited precipitation, with only 29 mm (1.1 in) over about 5 days, and humidity levels hover around 71%. In contrast, September brings a much milder climate, with temperatures ranging from a minimum of 8°C (48°F) to a warm average of 21°C (70°F), peaking at 31°C (88°F). This month is significantly wetter, receiving 201 mm (7.9 in) of rainfall over 11 days, and humidity increases to 80%. For a closer look at September weather conditions, you can check out Jeonju weather in September.

January and October present distinctly different weather patterns. In January, temperatures can plummet as low as -19°C (-2°F), with an average of -1°C (31°F) and a maximum of 16°C (60°F), accompanied by relatively low precipitation of 29 mm (1.1 in) across 5 days. The humidity level stands at a moderate 71%. In contrast, October experiences much milder temperatures, ranging from a minimum of 0°C (32°F) to an average of 14°C (58°F), peaking at a warm 30°C (86°F). The month sees significantly higher precipitation at 67 mm (2.6 in) over the same number of rainy days, with humidity increasing slightly to 78%. For more detailed information, you can visit Jeonju weather in October.

In comparing the weather between January and November, it's clear that November tends to be milder and wetter. January experiences colder temperatures, with an average of -1°C (31°F) and a minimum dipping down to -19°C (-2°F). In contrast, November boasts a more comfortable average of 8°C (46°F), with temperatures ranging from -4°C (26°F) to a maximum of 21°C (70°F). Additionally, November sees slightly more precipitation at 42 mm (1.6 in) over 6 days, compared to January’s 29 mm (1.1 in) over 5 days. The humidity also increases in November, averaging 76% compared to January's 71%. For a detailed look at what to expect, you can check out Jeonju weather in November.

In comparing the weather of January and December, January tends to be colder with average temperatures hovering around -1°C (31°F), while December has a slightly milder average of 1°C (34°F). The minimum temperatures in January can plunge to a brisk -19°C (-2°F), compared to December's low of -13°C (8°F). Both months see similar levels of precipitation, with January recording 29 mm (1.1 in) and December a little higher at 31 mm (1.2 in), each with precipitation occurring on five days. Humidity levels are also comparable, with January at 71% and December slightly higher at 73%. For those interested in a detailed look at December conditions, visit Jeonju weather in December.

Compare Jeonju's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Jeonju

January in Jeonju showcases a distinct chill, setting it apart from other months. With average temperatures hovering around -1°C (31°F), this winter month embraces its coldest spells, where temperatures can plummet to -19°C (-2°F). While preliminary precipitation is relatively low, with five days of light rain, the humidity remains noticeable at 71%, adding to the crisp winter air. Unlike the warmer months, January invites visitors to experience the beauty of Jeonju's winter landscape, making it a unique time to explore this charming city. For more insights, check out the detailed Jeonju Climate.