Last updated: October 30, 2025
January in Busan, South Korea offers a mix of chilly temperatures and occasional rainfall, creating a unique winter experience. The maximum temperature reaches a pleasant 18°C (64°F), while the average hovers around a brisk 6°C (43°F). On colder days, temperatures can dip to a minimum of -7°C (20°F), reminding visitors that winter is still in full swing. Rainfall is moderate, with 38 mm (1.5 in) spread across four days, contributing to a humidity level of 72% that can make the air feel cooler. Embrace the crisp winter atmosphere and explore Busan’s beautiful winter landscapes!
In January, Busan experiences a crisp winter chill, with minimum temperatures plummeting to around -7°C (20°F). The average temperature hovers at a moderate 6°C (43°F), providing a brief respite from the cold, while the maximum can reach up to 18°C (64°F) on warmer days. As the month progresses into February, temperatures begin to rise slightly, with minima around -5°C (24°F) and averages inching to 7°C (44°F). This trend continues into March, where the onset of spring is hinted at with lows of 1°C (34°F) and averages reaching 11°C (51°F). Such gradual warming signifies a transition, leading into more comfortable conditions as spring approaches, making January the midpoint in the shift from the biting cold of winter to the rejuvenating warmth of the upcoming season.
In January, Busan experiences a relatively dry start to the year, with only 38 mm (1.5 in) of precipitation falling over approximately four days. This modest amount marks the beginning of a gradual increase in rainfall as the months progress; by February, precipitation rises to 46 mm (1.8 in), and then sharply escalates in the spring months, reaching 100 mm (3.9 in) by March. As the region transitions into summer, rain becomes more frequent and significant, peaking in July with a hefty 249 mm (9.8 in) across 13 days. This upward trend continues into the late summer, with September also receiving substantial 245 mm (9.6 in). The drier months of November and December close the year with only 24 mm (1.0 in) and 25 mm (1.0 in) respectively, reaffirming the seasonal pattern of Busan's precipitation cycle.
In January, Busan experiences a humidity level of 72%, marking a relatively comfortable start to the year. As the season transitions into February and March, humidity begins to dip slightly, reaching 67% and 65%, respectively. However, spring brings a notable increase, with humidity jumping to 75% in April. The trend continues to rise, peaking in the summer months with July hitting a high of 95%. This intense humidity persists into August at 93%, before gradually decreasing into the fall. By September, humidity settles at 80%, and the trend continues to cool into October and November with levels of 77% and 75%. Overall, January sets a baseline for a year characterized by increasing humidity, culminating in the muggy warmth of summer.
In January, Busan experiences a moderate UV Index of 4, indicating that while the sun is not at its strongest, precautions are still advisable, with a burn time of about 30 minutes for fair-skinned individuals. As the seasons shift into February, the UV Index nudges up to 5, maintaining the moderate exposure category but highlighting that sunlight begins to intensify. The transition into March reveals a significant jump, bringing a high UV Index of 7 and a shorter burn time of 25 minutes, reflecting the increasing strength of the sun as spring approaches. This trend continues into April and May, where the index peaks at 10, categorized as very high, requiring careful sun protection in just 15 minutes of exposure. The intensity escalates further during the summer months of June to August, reaching an extreme level of 12, demonstrating that travelers should prioritize sun safety with only 10 minutes of unprotected exposure. As the year rolls into autumn, the UV Index dips slightly to 10 in September before returning to moderate levels in November (5) and December (3). This seasonal pattern underscores the importance of adjusting sun protection strategies throughout the year in Busan. For more insights on UV levels, visit Busan UV Index.
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In January, Busan welcomes the year with a modest 196 hours of sunshine, laying the groundwork for a gradual increase in brightness as winter fades. As the city transitions into February, the sun begins to shine more, offering 239 hours that signal the approach of spring. By March and April, residents enjoy 267 and 278 hours respectively, heralding the blossoming landscape. The increase peaks in May with 295 hours, making it the sunniest month, before slightly tapering off into the summer months. June follows closely with 293 hours, while July and August bring a dip to 266 and 290 hours, featuring a mix of intense sunshine and seasonal rain. As autumn rolls in, sunshine recedes again, with September recording 241 hours and October maintaining a comfortable 256 hours. The year concludes on a mellow note, with November and December offering 238 and 244 hours, respectively. This trend showcases Busan's vibrant seasonal transitions, where each month brings a unique blend of sun and shadow, enriching the city’s charm throughout the year.
In Busan, South Korea, the likelihood of enjoying sunny weather in January stands at 53%, making it a decent time for sun-seekers. This chance slightly increases in February to 54%, hinting at a slight trend toward sunnier days as winter progresses. However, as spring approaches, the chances of sunshine dip down to 40% in March and linger around the mid-40s through April. It's interesting to note that the likelihood of clear skies plummets during the summer months, reaching its lowest at 23% in July, only to gradually rise again in October with a promising 57%. As the year wraps up, the latter months—November and December—show a notable increase in sunshine, showcasing a festive farewell to the year. Overall, while January offers a moderate chance for sunshine, the evolving patterns throughout the year reveal peaks and valleys that can help plan your perfect visit.
In January, Busan enjoys 10 hours of daylight, a figure that remains steady through February. As spring approaches, daylight begins to stretch, reaching 11 hours in March and blossoming to 13 hours by April. The heights of summer bring about a peak of 14 hours in both May and June, creating long, sunlit days perfect for outdoor adventures. As the seasons shift into late summer and fall, daylight gradually recedes, with August witnessing a slight drop to 13 hours and September following closely with 12 hours. By October, daylight dwindles to 11 hours, and the descent continues into winter, ending with just 9 hours in December. This annual cycle showcases the rhythmic ebb and flow of daylight, inviting residents and visitors alike to embrace the vibrant energy of Busan's transitional seasons.
In January, Busan experiences a brisk average wind speed of 6.6 m/s (15 mph), heralding the new year with a refreshing chill. This lively breeze is slightly calm compared to February, which sees a marginal rise to 6.9 m/s (15 mph), setting the stage for a winter that feels both invigorating and alive. As spring approaches, the winds soften, with March and April recording a gentle 6.0 m/s (13 mph), creating a pleasant atmosphere perfect for outdoor activities. However, by May, the winds begin to taper off, settling at 5.6 m/s (13 mph), and further decrease as summer arrives, illustrating a trend towards milder conditions with June reaching only 4.3 m/s (10 mph). The summer months maintain this gentleness, with July and August hovering around 5.2 m/s (12 mph). Interestingly, the winds pick up pace again as autumn rolls in, with September showcasing a brisk 6.7 m/s (15 mph). The transition into winter in November and December brings a slight revival in speed, culminating with 6.3 m/s (14 mph) in December, offering a refreshing closure to the year. Overall, Busan's wind patterns reveal a dynamic seasonal shift, enhancing the region's engaging climate throughout the year.
Weather in Busan varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Busan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures in Busan typically range from a minimum of -7°C (20°F) to a maximum of 18°C (64°F), with an average of 6°C (43°F). The month sees about 38 mm (1.5 in) of precipitation over four rainy days, accompanied by a higher humidity level of 72%. In comparison, February brings slightly milder conditions, with temperatures fluctuating between -5°C (24°F) and 16°C (61°F) and an average of 7°C (44°F). This month experiences a bit more rainfall, totaling 46 mm (1.8 in) across the same number of rainy days, while humidity decreases slightly to 67%. For more detailed information on February weather, visit Busan weather in February.
In January, the weather tends to be quite chilly, with minimum temperatures dipping as low as -7°C (20°F) and an average temperature of around 6°C (43°F). The month sees a relatively low amount of precipitation, totaling 38 mm (1.5 in) over just 4 days, coupled with a humidity level of 72%. In contrast, March experiences a milder climate, with minimum temperatures rising to 1°C (34°F) and an average temperature of 11°C (51°F). However, it is also wetter, with precipitation reaching 100 mm (3.9 in) over 8 days and humidity decreasing slightly to 65%. For more detailed insights, you can check out Busan weather in March.
January and April showcase distinct weather characteristics that reflect the transition from winter to spring. In January, temperatures vary from a chilly -7°C (20°F) at night to a comfortable high of 18°C (64°F) during the day, with an average of 6°C (43°F). This month experiences minimal precipitation, with rain falling on just four days and total precipitation reaching 38 mm (1.5 in), accompanied by a humidity level of 72%.
In contrast, April is notably milder, with nighttime lows of 6°C (42°F) and daytime highs reaching 19°C (66°F), resulting in an average temperature of 14°C (57°F). However, April is wetter, receiving 114 mm (4.5 in) of rain over seven days, and the humidity slightly increases to 75%. For more detailed information about the weather during this month, you can refer to Busan weather in April.
Comparing the weather in January and May reveals distinct seasonal differences. In January, temperatures range from a chilly minimum of -7°C (20°F) to a mild maximum of 18°C (64°F), with an average of 6°C (43°F), while the humidity sits at 72%. In contrast, May sees much warmer conditions, with temperatures starting at a minimum of 10°C (50°F) and reaching up to 22°C (71°F), averaging around 17°C (63°F). However, May is also characterized by increased precipitation, totaling 113 mm (4.5 in) over 7 days compared to January's 38 mm (1.5 in) across just 4 days. For more details on May weather, check out Busan weather in May.
January weather is characterized by colder temperatures, with minimums reaching as low as -7°C (20°F) and an average of around 6°C (43°F), while maximums can rise to 18°C (64°F). The month experiences relatively low precipitation, with only 38 mm (1.5 in) over about 4 days, and humidity levels sit at a moderate 72%.
In contrast, June brings much warmer temperatures, with minimums of 16°C (62°F), an average of 20°C (69°F), and maximums reaching 25°C (78°F). This month also sees significantly higher precipitation, totaling 167 mm (6.6 in) over 8 days, coupled with higher humidity levels at 87%. For more detailed insights into the June climate, you can visit Busan weather in June.
January and July present starkly contrasting weather conditions. In January, temperatures range from a chilly minimum of -7°C (20°F) to a moderate maximum of 18°C (64°F), with an average of 6°C (43°F). The month experiences relatively low precipitation of 38 mm (1.5 in) over just four days, and humidity levels hover around 72%. In stark contrast, July boasts much warmer temperatures, with a minimum of 19°C (66°F) and a maximum reaching 30°C (87°F), averaging 24°C (76°F). This summer month sees significant rainfall, with 249 mm (9.8 in) spread over 13 days, and humidity surges to 95%. For more detailed weather insights, you can check Busan weather in July.
January and August present stark contrasts in weather. In January, temperatures range from a chilly -7°C (20°F) at night to a mild 18°C (64°F) during the day, with an average of 6°C (43°F). The month sees relatively low precipitation, totaling 38 mm (1.5 in) over just 4 days, and humidity at 72%, making it a crisp and dry time of year. In contrast, August boasts much warmer temperatures, with nighttime lows of 23°C (73°F) and daytime highs reaching 31°C (88°F), averaging 27°C (81°F). This summer month experiences significantly higher precipitation, with 158 mm (6.2 in) falling over 13 days, and humidity peaks at 93%, creating a humid and often rainy atmosphere. For more specific details on the conditions, visit Busan weather in August.
January and September present starkly contrasting weather conditions. In January, temperatures range from a chilly minimum of -7°C (20°F) to a mild maximum of 18°C (64°F), with an average of 6°C (43°F). The month sees relatively low precipitation, totaling 38 mm (1.5 in) over just four days, and humidity sits at 72%. In contrast, September boasts much warmer temperatures, with a minimum of 17°C (63°F) and a maximum of 29°C (84°F), averaging 23°C (75°F). This month experiences significantly higher precipitation, totaling 245 mm (9.6 in) across 11 days, and a higher humidity level of 80%. For more detailed insights about September's weather, you can visit Busan weather in September.
In January, the weather is markedly cooler, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 18°C (64°F) and an average of 6°C (43°F). The month sees relatively low precipitation levels at 38 mm (1.5 in) over four days, accompanied by a humidity level of 72%. In contrast, October experiences much warmer temperatures, with a minimum of 9°C (49°F), an average of 19°C (67°F), and a maximum of 26°C (78°F). This month also has higher precipitation, totaling 91 mm (3.6 in) over five days and a humidity level of 77%. For a more detailed look at October conditions, you can visit Busan weather in October.
In comparison to January, November experiences significantly milder temperatures, with an average of 14°C (57°F) compared to January's average of 6°C (43°F). The maximum temperatures in November can reach up to 21°C (70°F), while January sees a maximum of only 18°C (64°F). Precipitation is slightly lower in November, totaling 24 mm (1.0 in) over just 3 days, compared to January's 38 mm (1.5 in) spread over 4 days. Humidity levels are relatively similar, with November at 75% and January at 72%. For more detailed insights, you can check out Busan weather in November.
In comparing the weather between January and December, January tends to be slightly colder, with average temperatures ranging from -7°C (20°F) to 18°C (64°F), while December experiences milder conditions with temperatures from -4°C (25°F) to 18°C (64°F). Precipitation is more frequent in January, with 38 mm (1.5 in) falling over 4 days, compared to December’s 25 mm (1.0 in) over just 3 days. Humidity levels are quite similar, at 72% in January and 73% in December, making both months feel relatively damp. For a deeper look at December's climate, you can check Busan weather in December.
As winter envelops Busan in January, the weather transforms dramatically compared to the milder months ahead. With average temperatures hovering around a brisk 6°C (43°F) and occasional dips to -7°C (20°F), it's a time when cozy layers and warm drinks become essential. Despite experiencing only a few days of rain, the 72% humidity can make the air feel chillier, adding to the seasonal ambiance. This blend of cool temperatures and limited precipitation sets January apart, making it a unique time for travelers and locals alike to experience the quieter, more introspective side of this vibrant city. For more insights on how Busan's weather shapes its climate throughout the year, check out Busan Climate.