Last updated: October 30, 2025
In Suwon, South Korea, January weather presents a chilly ambiance, characterized by a maximum temperature peaking at 13°C (55°F) and an average hovering around -2°C (29°F). Expect cold spells, with nighttime temperatures dropping to a minimum of -17°C (2°F). This month sees moderate precipitation, totaling 21 mm (0.8 in) over just two days, contributing to a relative humidity level of 71%. Residents and visitors alike should prepare for brisk conditions that define this winter month in Suwon.
In January, Suwon, South Korea experiences a wintry chill, with temperatures reaching a minimum of -17°C (2°F) and averaging around -2°C (29°F). Despite the biting cold, daytime highs can occasionally climb to a more moderate 13°C (55°F), offering brief reprieves from the frigid air. This stark temperature range marks the peak of winter, contrasting sharply with the milder conditions that follow in February, where averages flirt with zero degrees Celsius. As the months progress towards spring, we see a gradual warming trend, leading into March with an increase in average temperatures to 7°C (44°F). Overall, January sets the tone for the coldest part of the year, with its significant lows and the potential for sunny afternoons that hint at the changing seasons ahead.
In January, Suwon, South Korea experiences minimal precipitation, with only 21 mm (0.8 in) of rain falling over just 2 days. As winter progresses into February, a slight increase occurs, with precipitation rising to 23 mm (0.9 in) over 4 days. This trend of gradual increase in both amount and frequency continues into the spring months, culminating in March and April, where rainfall significantly ramps up to 47 mm (1.9 in) and 54 mm (2.1 in) respectively. By the time summer arrives, Suwon faces a striking transformation, with July and August seeing an overwhelming 235 mm (9.3 in) and 255 mm (10.1 in) of rainfall spread across 14 days each. This pattern illustrates a clear seasonal shift, as the dry winter months give way to the wet, monsoonal climate of summer, highlighting the dynamic nature of Suwon's precipitation throughout the year.
In January, Suwon experiences a notable humidity level of 71%, setting the stage for a winter that feels crisp yet damp. As February and March roll in, the humidity dips slightly to 65%, providing a temporary reprieve before the weather begins to warm up. However, by April, the moisture in the air begins to rise again, reaching 75% as spring unveils its bloom. This upward trend continues into the summer, peaking in July and August at a steamy 91%. Interestingly, post-summer months like September and October witness a modest decrease, though humidity remains high at 77% and 79%, respectively. As the year winds down, November and December see humidity levels hovering around 80% and 74%, reminding residents of Suwon that even in winter, a certain clinginess persists in the air. Overall, January’s humidity foreshadows a year of varying yet predominately high moisture, particularly in the warmer months.
In January, Suwon experiences a moderate UV Index of 3, indicating safe sun exposure with a burn time of about 30 minutes. As the month transitions into February, the UV Index rises slightly to 4, still within the moderate range but signaling the need for cautious sun protection during outdoor activities. This gradual increase sets the stage for a more significant leap in March, where the Index reaches 6 and time until burn decreases to 25 minutes, marking the onset of higher UV levels. The trend continues upward in April and May, with indices peaking at 8 and 9 respectively, both categorized as very high, where the potential for skin damage increases sharply with a burn time reduced to 15 minutes. The summer months of June through August escalate to an extreme UV Index of 10 and 11, demanding vigilance as exposure time plummets to 10 minutes. As autumn approaches, the UV Index tapers off, dropping back to 6 in October and eventually returning to 4 in November, before settling at the January levels of 3 in December. This seasonal cycle showcases a significant variation in UV intensity across the year, highlighting the importance of staying informed about sun safety throughout the months. For more information, visit Suwon UV Index.
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In Suwon, South Korea, January ushers in a modest 198 hours of sunshine, laying the groundwork for a gradual increase as the year unfolds. As winter yields to spring, February sees a significant jump to 242 hours, and by March, the sun's embrace strengthens further with 283 hours. This upward trend continues, peaking in June at an impressive 318 hours. The summer months maintain that brightness, although slightly diminished, with July and August delivering 293 and 290 hours respectively. As the year transitions into the cooler months, sunshine hours gradually decline, culminating in 231 hours by November. Despite the dips, the overall trajectory from winter to summer reveals Suwon's vibrant and sunlit character, perfectly capturing the essence of seasonal change.
In Suwon, South Korea, the likelihood of sunny weather in January stands at a promising 49%, making it one of the brighter months in the winter season. Notably, this percentage is just shy of February's slightly higher 53%, suggesting a trend of increasing sunshine as winter transitions towards spring. As the months progress, however, the sun's presence tends to dip, with March and April seeing a decrease to 43%. Despite this dip, the chance of sunny days remains higher in these winter months compared to the peak summer heat, where chances plunge to 30% and 31% in July and August respectively. As we move toward November and December, the likelihood of sunshine rises again, painting a picture of fluctuating weather patterns that could captivate both locals and visitors alike.
In Suwon, South Korea, January marks the beginning of a gradual increase in daylight duration, with just 9 hours illuminating the day. As winter gives way to spring, February sees this daylight stretch to 10 hours, followed by a steady climb to 11 in March, and then 13 hours by April. This upward trend peaks in the summer months of May and June, where Suwon basks in 14 hours of sunlight—a delightful embrace of long, bright days. As the seasons transition into fall, daylight begins its gradual decline, with August still enjoying 13 hours, but September slipping back to 12. By the time December arrives, daylight returns to the wintery lows of 9 hours, completing the cycle. This rhythmic ebb and flow of daylight not only marks the change in seasons but also encourages a sense of renewal and anticipation as each month brings a new balance of light and darkness.
In January, Suwon, South Korea, experiences an average wind speed of 3.1 m/s (7 mph), marking the start of the year with a refreshing breeze. This early winter windiness sets a slightly brisk tone, as gusts gradually increase into February with an average of 3.4 m/s (8 mph). However, as the seasons shift towards spring, the winds begin to calm, with speeds dipping to 2.7 m/s (6 mph) in March and continuing along a relatively gentle path through the spring and summer months. By the time July arrives, the breezes have softened to a mere 2.0 m/s (4 mph), creating a stillness that lingers into late summer. Interestingly, a slight uptick is observed in December, where winds reach back to 2.9 m/s (7 mph), hinting at winter’s return. This fluctuation reveals a distinct seasonal pattern, showcasing January's initial vigor giving way to a calm summer, followed by a gentle resurgence in winter's embrace.
Weather in Suwon varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Suwon, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February both experience cold temperatures, but February tends to be slightly warmer on average. In January, the temperatures range from a minimum of -17°C (2°F) to a maximum of 13°C (55°F), with an average of -2°C (29°F). In contrast, February sees temperatures ranging from a minimum of -15°C (4°F) to a maximum of 18°C (65°F), yielding a better average of 0°C (33°F). Additionally, February receives a little more precipitation, totaling 23 mm (0.9 in) over four days, compared to January's 21 mm (0.8 in) over just two days. Humidity levels are higher in January at 71%, while February enjoys a drier atmosphere with 65% humidity. For more details, check out Suwon weather in February.
January and March present distinct contrasts in weather, highlighting the transition from winter to spring. In January, temperatures can dip as low as -17°C (2°F), with an average of -2°C (29°F) and occasional highs of up to 13°C (55°F). The month sees relatively low precipitation at 21 mm (0.8 in), occurring over just two days, and humidity levels are higher at 71%. In contrast, March experiences a milder climate, with minimum temperatures around -6°C (21°F), an average of 7°C (44°F), and maximums reaching 21°C (70°F). Precipitation increases to 47 mm (1.9 in), spread over five days, while humidity decreases slightly to 65%. For more specific details on March weather, please refer to Suwon weather in March.
January and April present stark contrasts in weather patterns. In January, temperatures can plummet to a minimum of -17°C (2°F) with an average of -2°C (29°F) and a maximum of 13°C (55°F), accompanied by relatively low precipitation at 21 mm (0.8 in) over just 2 days. The humidity sits at 71%, giving it a crisp, cold feeling. In contrast, April welcomes milder conditions, with temperatures ranging from a minimum of -1°C (30°F) to an average of 12°C (54°F) and peaking at a warm 28°C (82°F). However, it brings more rainfall, totaling 54 mm (2.1 in) over 5 days and slightly higher humidity at 75%. For a detailed glimpse into April weather, you can check Suwon weather in April.
In January, the weather is quite cold, with temperatures ranging from a minimum of -17°C (2°F) to a maximum of 13°C (55°F) and an average of -2°C (29°F). The month typically sees only two days of precipitation, totaling about 21 mm (0.8 in), and a humidity level of 71%. In stark contrast, May experiences significantly warmer temperatures, with a minimum of 6°C (42°F), an average of 18°C (64°F), and a high of 31°C (89°F). This month also sees more precipitation, averaging 98 mm (3.9 in) over eight days, alongside a slightly higher humidity of 81%. For more detailed insights, check out Suwon weather in May.
In January, the weather is starkly cold, with temperatures ranging from a frigid -17°C (2°F) at night to a mild 13°C (55°F) during the day. The month typically sees only 21 mm (0.8 in) of precipitation over just 2 days and maintains a humidity level of 71%. In contrast, June brings a dramatic shift, with temperatures soaring from a minimum of 12°C (53°F) to a maximum of 33°C (91°F). Rainfall increases significantly to 80 mm (3.1 in) over 7 days, and humidity rises to a substantial 85%. For further details on the June climate, you can visit Suwon weather in June.
The weather in January contrasts sharply with that of July. In January, temperatures can plummet as low as -17°C (2°F) and have an average of -2°C (29°F), while the maximum reaches just 13°C (55°F). Precipitation is minimal, with only 21 mm (0.8 in) falling over just two days, and humidity levels sit at around 71%. In stark contrast, July brings much warmer conditions, with temperatures ranging from a minimum of 18°C (65°F) to an average of 26°C (79°F) and peaking at 36°C (98°F). Rainfall is significantly higher at 235 mm (9.3 in) over 14 days, accompanied by increased humidity levels of 91%. For more detailed information on Suwon's weather in July, visit Suwon weather in July.
In January, the weather is quite cold, with temperatures ranging from a frigid minimum of -17°C (2°F) to a maximum of 13°C (55°F), accompanied by low precipitation of only 21 mm (0.8 in) over just 2 days, and average humidity at 71%. In stark contrast, August brings warm weather, with temperatures soaring from a minimum of 16°C (61°F) to a sweltering maximum of 38°C (101°F). This month also sees significantly higher precipitation, totaling 255 mm (10.1 in) across 14 days, and humidity levels rise to a muggy 91%. For more specifics about the climate during this time, check out Suwon weather in August.
January and September present starkly contrasting weather conditions. In January, temperatures can plummet to a minimum of -17°C (2°F), with an average of -2°C (29°F) and a maximum of 13°C (55°F). The month sees limited precipitation, totaling just 21 mm (0.8 in) over 2 days, alongside a humidity level of 71%. In contrast, September welcomes warmer weather with minimum temperatures around 9°C (48°F), an average of 22°C (71°F), and highs reaching up to 31°C (88°F). This month experiences significantly higher precipitation, totaling 136 mm (5.4 in) across 9 days, and a slightly higher humidity of 77%. For more detailed information, check out Suwon weather in September.
January and October present vastly different weather experiences. In January, temperatures can drop as low as -17°C (2°F), with an average of -2°C (29°F) and a maximum of 13°C (55°F). This month sees very little precipitation, averaging only 21 mm (0.8 in) over just 2 days, along with a humidity level of 71%. In contrast, October is significantly milder, with temperatures ranging from a low of 1°C (33°F) to a high of 29°C (84°F) and an average of 15°C (59°F). The month is also wetter, experiencing 62 mm (2.5 in) of precipitation across 5 days and a slightly higher humidity level of 79%. For more detailed insights into October weather, you can check Suwon weather in October.
In January, the weather is significantly colder, with temperatures ranging from a minimum of -17°C (2°F) to a maximum of 13°C (55°F), and a low average temperature of -2°C (29°F). The month sees minimal precipitation, averaging just 21 mm (0.8 in) over only 2 days, with humidity at 71%. In contrast, November experiences milder temperatures, with a minimum of -5°C (23°F) and a maximum of 21°C (70°F), leading to an average of 8°C (46°F). November is also wetter, receiving 54 mm (2.1 in) of precipitation across 5 days, and higher humidity at 80%. For more information, check out Suwon weather in November.
In comparing the weather of January and December, January typically features slightly lower temperatures, with a minimum of -17°C (2°F) and an average of -2°C (29°F), while December has a minimum of -14°C (8°F) and an average of 0°C (33°F). Both months experience a maximum temperature of around 13°C (55°F to 56°F), indicating similar peak conditions. Precipitation levels are also slightly lower in January at 21 mm (0.8 in) over just 2 days, compared to December's 26 mm (1.0 in) over 5 days. Humidity is fairly consistent, with January's 71% just a touch lower than December's 74%. For a more detailed look at December weather specifically, you can visit Suwon weather in December.
As January wraps Suwon in its chilly embrace, the weather starkly contrasts with the milder months that precede and follow it. Temperatures can plummet, often reaching freezing lows, while only a few days of precipitation offer a slight reprieve from the cold. With humidity levels around 71%, the air feels brisk and biting, adding to the wintery atmosphere that defines the month. Whether you're embracing the cold or seeking warmth indoors, January in Suwon offers a unique experience, distinct from the more temperate seasons. For a deeper dive into Suwon's weather patterns, explore Suwon Climate.