January Weather in Yeoju, South Korea

Last updated: October 30, 2025

In Yeoju, South Korea, January weather showcases a notable range, with maximum temperatures reaching 12°C (55°F) and minimums plummeting to -19°C (-1°F). The average temperature hovers around a chilly -2°C (28°F), setting a brisk tone for the month. Precipitation is modest, totaling 23 mm (0.9 in) over three days, while the humidity often remains at a comfortable level of 71%. This combination of cool temperatures and occasional moisture makes January a unique month in Yeoju, inviting both residents and visitors to embrace the serene beauty of winter.

January Temperature in Yeoju

In Yeoju, South Korea, January is characterized by its chilly embrace, with temperatures ranging from a biting -19°C (-1°F) at night to a comparatively mild 12°C (55°F) during the day, making it the coldest month of the year. The average temperature of -2°C (28°F) sets the tone for a winter landscape that encourages cozy indoor activities. As February rolls in, the cold lingers but begins to soften slightly, showing a trend towards warmer days, where highs can reach 19°C (67°F). This gradual warming continues into early spring, with temperatures steadily rising through March and April, hinting at the arrival of milder, more temperate conditions. Overall, January serves as a stark reminder of winter's chill, while the following months exhibit a clear transition towards the warmer, vibrant seasons ahead.

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

The chart illustrates January temperature patterns in Yeoju, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yeoju, January typically has an average temperature of -2°C (28°F), with highs reaching up to 12°C (55°F) and lows dropping to around -19°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec283244546472777869574431
Data source: Temperature data for Yeoju 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 Yeoju

In January, Yeoju, South Korea experiences a relatively dry start to the year, with only 23 mm (0.9 in) of precipitation spread over just 3 days. This marks the beginning of a gradual increase in rainfall as winter transitions to spring. As the months progress, precipitation steadily rises, peaking in the summer with July and August each recording over 250 mm (nearly 10 in) across approximately 16 days. This trend highlights a seasonal pattern where drier winter months give way to significantly wetter summer conditions, reflecting a typical East Asian climate.

January Precipitation Trends in Yeoju

The chart displays monthly precipitation patterns in Yeoju, 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 Yeoju, January typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec2328617510886251253148645224
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Yeoju

In January, Yeoju, South Korea, experiences a humidity level of 71%, setting the stage for a cold and crisp winter. This month marks a transitional period, as humidity begins to decline slightly to 66% in February, hinting at the approaching spring. However, as spring unfolds, March sees a further drop to 64%, creating a refreshing atmosphere. Yet, with the arrival of warmer temperatures in April, humidity climbs back up to 74%, and by May, it reaches 79%, bringing a noticeable increase in moisture. The summer months hit their peak, with July and August soaring to a staggering 91%, creating a humid and sultry environment. As fall approaches, humidity begins to wane, settling at 77% in September and maintaining a modest range between 76% and 80% through the winter months of October, November, and December. This trend underscores Yeoju's shift from the chill of winter to the humid embrace of summer, showcasing the rich variability of its humid climate throughout the year.

January Average Humidity in Yeoju

This chart illustrates the average monthly humidity levels in Yeoju, 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 Yeoju is approximately 71%, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Yeoju

In Yeoju, South Korea, January presents a UV Index of 3, categorized as moderate, which indicates a 30-minute burn time for those at risk. As the winter chill wanes, February sees a slight increase to a UV Index of 4, still moderate but signaling an upward trend as spring approaches. However, March marks a notable shift with the UV Index climbing to 6, entering the high exposure category, and reducing the burn time to 25 minutes. As we transition into April and May, the UV Index reaches a striking 9, classified as very high, with an even shorter burn time of 15 minutes. The summer months escalate further, with June through August exhibiting an extreme UV Index of 11, which demands vigilant sun protection as burn time plummets to just 10 minutes. In the fall, the UV Index begins to descend, tapering to 9 in September before returning to moderate levels of 4 in November and 3 in December, mirroring the lower winter sun position. This clear seasonal pattern underscores the importance of adjusting sun protection as you enjoy Yeoju's changing climate. For a detailed forecast, check the full trends at Yeoju UV Index.

Maximum UV Index Levels in Yeoju for January

The chart shows the monthly maximum UV Index (UVI) for Yeoju 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 Yeoju typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346991111119643
Data source: Yeoju 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 Yeoju

In Yeoju, South Korea, January marks the beginning of the year with 197 hours of sunshine, setting the stage for a gradual increase in daylight as winter transitions into spring. As February arrives, sunlight increases to 237 hours, hinting at the impending warmth. By March, the sun takes center stage with 274 hours, and April follows closely with 279 hours, as the landscape begins to spring to life. The sun shines brighter in May and June, reaching their peaks at 302 and 306 hours respectively, making these months the sunniest of the year. However, as summer unfolds into July and August, the hours dip slightly to 274 and 263 hours, showcasing a typical seasonal ebb. The trend of sunlight continues to wane into the autumn months, with September through November seeing a steady decline, culminating in 228 hours in November before December brings back a modest 234 hours. Overall, Yeoju experiences a vibrant arc of sunshine throughout the year, inviting residents and visitors alike to enjoy each season’s unique offerings.

Monthly Sunshine Duration in Yeoju: January Highlighted

The January sunshine duration represents the total number of hours Yeoju 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.
JanFebMarAprMayJunJulAugSepOctNovDec197h237h274h279h302h306h274h263h250h256h228h234h
Data source: Yeoju January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yeoju During January

In Yeoju, South Korea, January boasts a 55% chance of sunny weather, mirroring February's optimism. Interestingly, this marks a notable peak in the winter months, as the likelihood begins to wane with the arrival of early spring. As we transition into March and April, the chances drop to 42% and 43%, respectively, suggesting that the clear skies of early winter are often replaced by more unpredictable conditions. This trend of declining sunshine continues through the warmer months, where the sun takes a back seat in July and August with only a 30% and 27% chance of brightness. However, as the year wraps up, November and December present a mid-winter resurgence with 56% and 64% chances of sun, hinting that the end of the year may offer pleasant surprises amidst the cold.

Percentage of Sunny Days in January in Yeoju

The chart illustrates the percentage of sunny days in Yeoju 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 Yeoju experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec55%55%43%43%36%37%30%27%37%45%56%65%
Data source: Yeoju January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yeoju in January

In Yeoju, South Korea, January marks the beginning of the year with 9 hours of daylight, setting the stage for a gradual increase in sunlight. As the months progress into February, daylight extends to 10 hours, hinting at the approaching warmth of spring. By March, the days grow longer at 11 hours, inviting people to bask in the early spring air. This trend continues into April, where daylight reaches a welcoming 13 hours, and peaks in May and June at 14 hours, offering a delightful abundance of sunshine. The summer months maintain this peak, ensuring long, bright days. However, as August rolls in, a gentle decline begins, with hours of daylight reducing to 13, followed by a steady decrease through September and October, where daylight dwindles to 11 hours. This cycle continues until December, when Yeoju again experiences a return to 9 hours of daylight, completing the seasonal journey and reminding us of nature's rhythmic patterns.

Average Daylight Hours in Yeoju for January

The chart illustrates the variation in daylight duration in Yeoju throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 53m10h 47m11h 57m13h 9m14h 9m14h 40m14h 24m13h 32m12h 23m11h 12m10h 9m9h 37m
Data source: Yeoju daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Yeoju

In Yeoju, South Korea, January brings a gentle breeze with an average wind speed of 2.6 m/s (6 mph), setting the tone for a winter landscape that is both crisp and refreshing. As the month transitions into February, the winds pick up slightly, reaching 2.9 m/s (6 mph), hinting at the approaching change of seasons. Interestingly, from March to May, the wind speeds fluctuate around 2.4 to 2.5 m/s (5-6 mph), suggesting a stabilizing pattern as spring awakens. The summer months, however, witness a noticeable reduction in wind, with July and August experiencing much calmer days, averaging only 1.7 to 1.8 m/s (4 mph). As autumn sets in, wind speeds gradually rise again, peaking at 2.2 m/s (5 mph) in November, before closing the year with December’s brisk 2.5 m/s (6 mph). This dynamic interplay of winds reflects the seasonal transitions, providing a serene yet ever-changing backdrop to life in Yeoju.

Average January Wind Speed in Yeoju

The chart displays monthly wind speed patterns in Yeoju, 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/s2.92.42.52.41.91.71.82.11.92.22.5
Data source: Yeoju January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Yeoju Compares to Other Months

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

In January, the weather exhibits a colder temperament with minimum temperatures plummeting to -19°C (-1°F) and an average of -2°C (28°F), while highs reach only up to 12°C (55°F). Precipitation is relatively low, with about 23 mm (0.9 in) falling over 3 days and humidity levels lingering around 71%. In contrast, February brings a slight warming trend, with minimum temperatures around -16°C (4°F) and an average of 0°C (32°F), while maximum temperatures can soar to 19°C (67°F). February also sees a slight increase in precipitation, totaling 28 mm (1.1 in) over 4 days, but the humidity drops to 66%. For more detailed information on February weather in the area, check out Yeoju weather in February.

In comparing the weather between January and March, it's clear that March experiences a notable increase in temperature and precipitation. While January's temperatures range from a frigid minimum of -19°C (-1°F) to a maximum of 12°C (55°F) with an average of -2°C (28°F), March sees a much milder span with temperatures ranging from -6°C (21°F) to 21°C (71°F) and an average of 7°C (45°F). Additionally, March is wetter, with precipitation levels rising to 60 mm (2.4 in) over 6 days compared to January’s 23 mm (0.9 in) across only 3 days. Humidity also varies, lowering slightly from 71% in January to 64% in March. For more detailed information, check out Yeoju weather in March.

January and April present stark contrasts in weather. In January, temperatures drop significantly, with a minimum of -19°C (-1°F) and an average of -2°C (28°F), while April sees much milder conditions, starting at a minimum of -2°C (28°F) and climbing to an average of 12°C (54°F). Precipitation also varies, with January receiving 23 mm (0.9 in) over just 3 days, whereas April experiences a more substantial 75 mm (3.0 in) across 7 days, resulting in a noticeable increase in humidity, which rises slightly from 71% in January to 74% in April. For more detailed information, you can check Yeoju weather in April.

In January, the weather is notably cold, with temperatures ranging from a chilling minimum of -19°C (-1°F) to a maximum of 12°C (55°F), averaging around -2°C (28°F). The month sees relatively low precipitation of 23 mm (0.9 in) over just 3 days, accompanied by a humidity level of 71%. In contrast, May welcomes warmer temperatures, with a minimum of 3°C (38°F), an average of 18°C (64°F), and a peak of 32°C (90°F). However, this month also experiences significantly higher precipitation at 108 mm (4.2 in) across 10 days, along with increased humidity at 79%. To learn more about the weather in May, you can visit Yeoju weather in May.

The weather in January and June presents a stark contrast in temperature and conditions. In January, temperatures can drop as low as -19°C (-1°F), with an average of -2°C (28°F) and occasional highs reaching 12°C (55°F). The cold month also sees a relatively low precipitation of 23 mm (0.9 in) over just 3 days, paired with a humidity level of 71%.

In sharp contrast, June boasts milder temperatures with a minimum of 11°C (52°F) and an average reaching 22°C (72°F), soaring to a maximum of 34°C (93°F). This month experiences significantly higher precipitation at 86 mm (3.4 in) spread over 9 days, accompanied by increased humidity of 82%. For further details on June weather, you can check Yeoju weather in June.

January and July present stark contrasts in weather patterns. In January, temperatures can plummet to a low of -19°C (−1°F) with an average temperature of -2°C (28°F), while the maximum temperature barely reaches 12°C (55°F). Precipitation is minimal, averaging only 23 mm (0.9 in) over just three days, and humidity levels are relatively moderate at 71%.

In contrast, July boasts a much warmer climate, with temperatures ranging from a minimum of 16°C (61°F) to a scorching maximum of 35°C (96°F) and an average of 25°C (78°F). This month sees a significant increase in rainfall, with 251 mm (9.9 in) spread over 16 days, accompanied by high humidity at 91%. For a closer look at July's weather in Yeoju, visit Yeoju weather in July.

The weather in January is characterized by chill, with temperatures ranging from a minimum of -19°C (-1°F) to a maximum of 12°C (55°F), averaging around -2°C (28°F). This month sees relatively low precipitation, averaging only 23 mm (0.9 in) over just three days, combined with a humidity level of 71%. In stark contrast, August brings significantly warmer temperatures, with a minimum of 15°C (59°F) and a maximum of 37°C (99°F), averaging 26°C (78°F). This summer month experiences much higher precipitation, totaling 253 mm (10.0 in) over 16 days, and an elevated humidity level of 91%. For more details on August weather in Yeoju, visit Yeoju weather in August.

The weather in January is notably colder compared to September, with temperatures ranging from a harsh minimum of -19°C (-1°F) to an average of -2°C (28°F) and a maximum of 12°C (55°F). In contrast, September boasts a much milder climate, featuring temperatures that range from a minimum of 7°C (45°F) to a warm average of 20°C (69°F), peaking at a comfortable 30°C (86°F). Additionally, January experiences only a few days of precipitation, totaling 23 mm (0.9 in), while September sees significantly more rain, with 148 mm (5.8 in) spread over 9 days. The humidity levels are also higher in September at 77%, compared to January's 71%, indicating a notable shift in weather patterns between these two months. For more details, you can check Yeoju weather in September.

January and October present stark contrasts in weather conditions. In January, temperatures can plummet to a minimum of -19°C (-1°F), with an average of -2°C (28°F) and a maximum of 12°C (55°F). Precipitation is relatively low at 23 mm (0.9 in) over just three days, and the humidity hovers around 71%. Conversely, October sees much milder weather, featuring a minimum temperature of -1°C (30°F), an average of 14°C (57°F), and a maximum of 29°C (84°F). This month experiences significantly higher rainfall, amounting to 64 mm (2.5 in) across six days, with humidity increasing to 78%. For more on October's climate specifics, check out Yeoju weather in October.

In January, the weather is markedly colder, with temperatures ranging from a minimum of -19°C (-1°F) to a maximum of 12°C (55°F), which results in an average of -2°C (28°F). Precipitation is relatively low, totaling 23 mm (0.9 in) over just 3 days, and the humidity sits at 71%. In contrast, November experiences milder conditions with temperatures varying from a minimum of -6°C (21°F) to a maximum of 20°C (69°F), leading to an average of 7°C (44°F). This month sees higher precipitation levels of 52 mm (2.0 in) across 5 days, accompanied by increased humidity at 80%. For a more detailed look at the November climate, visit Yeoju weather in November.

In comparing the weather between January and December, January tends to be slightly colder, with an average temperature of -2°C (28°F) compared to December's average of -1°C (31°F). Both months experience similar maximum temperatures, peaking at around 12°C (54°F) to 12°C (55°F), but January has a lower minimum temperature, dropping to -19°C (-1°F) compared to December’s -17°C (1°F). Precipitation levels are relatively close, with December receiving 24 mm (1.0 in) over four days and January seeing 23 mm (0.9 in) over three days, indicating a comparable but slightly drier January. Additionally, December's humidity is higher at 76%, while January holds at 71%. For more details on December's climate, you can check Yeoju weather in December.

Compare Yeoju's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Yeoju

January in Yeoju presents a stark contrast to the warmer months, showcasing a chilly atmosphere where temperatures can plummet significantly. With an average chill of -2°C and occasional dips to a brisk -19°C, this month sets the stage for cold weather experiences. Despite these frigid temperatures, January is relatively dry, only receiving light precipitation on a few days, making it distinct from the wetter season glimpsed in spring and summer. Humidity levels remain moderate at 71%, adding to the crisp winter feel. For a deeper dive into Yeoju's weather patterns and how January fits into the yearly climate context, visit Yeoju Climate.