Last updated: October 30, 2025
April in Yongsan, South Korea, showcases a vibrant transition into spring, with temperatures reaching a maximum of 29°C (85°F) and an average of 13°C (55°F). The month experiences a gentle chill, with temperatures dipping to a minimum of -1°C (30°F), setting the stage for fluctuating weather patterns. Rainfall is modest, totaling 69 mm (2.7 in), spread over 6 days, contributing to the lush greenery emerging in the region. With a humidity level of 74%, the air is often crisp yet refreshing, creating a lively atmosphere perfect for outdoor exploration and appreciation of the blooming landscape.
April in Yongsan, South Korea, ushers in a vibrant transition from the lingering chill of winter to the warm embrace of spring. With temperatures ranging from a minimum of -1°C (30°F) to a maximum of an impressive 29°C (85°F), this month showcases a remarkable shift as the average temperature rises to 13°C (55°F). The significant increase in warmth compared to March signals the arrival of blooming cherry blossoms and lively outdoor activities, making it a popular time for both locals and tourists to explore the city. As the days grow longer and sunnier, it's clear that April sets the stage for Yongsan's delightful springtime charm.
In April, Yongsan, South Korea, experiences a notable rise in precipitation, receiving 69 mm (2.7 in) of rain over an average of 6 days. This increase marks a continuation of the wet trend observed since March, which saw 65 mm of rainfall. The spring month serves as a bridge to the wetter months ahead, where averages climb further, peaking in July and August with heavy rainfall. April's mix of spring showers and moderate temperatures creates a refreshing atmosphere, invigorating the city as it transitions into the lush greenery of late spring. The gradual ascent in rainfall not only enriches the scenery but also prepares the ground for the upcoming vibrant season.
In April, Yongsan, South Korea experiences a notable rise in humidity, reaching 74%, which marks a slight increase from March's 64%. This uptick is part of a broader trend as the region transitions towards the warmer months; humidity steadily climbs from early spring through summer. Following April, humidity levels soar in May to 79% and peak in July and August at an overwhelming 91%. As spring breathes life into the environment, the enhanced moisture levels in April signal the approaching subtropical influences, laying the groundwork for the sultry summer that follows.
As April arrives in Yongsan, South Korea, the UV Index climbs to a notable 9, marking a shift to the very high exposure category with a burn time of just 15 minutes. This trend of increasing UV intensity is part of a gradual progression that begins early in the year; January starts at a moderate 3, and by March, it reaches a high of 7. Following April, May maintains the same elevated level, emphasizing the importance of sun protection during these months. As the summer approaches, it’s crucial for residents and visitors alike to stay informed and take necessary precautions under the increasingly intense sunlight. To learn more about daily UV levels, visit the Yongsan UV Index.
UV Risk Categories
As spring settles in, April shines brightly in Yongsan, South Korea, with an impressive 279 hours of sunlight, marking a slight increase from the previous month. This gradual ascent in daylight hours—from 276 in March—reflects the growing warmth and vitality of the season. As we look ahead, May is poised to take the spotlight with 303 hours, promising even more sun-drenched days. This upward trend from the early months of the year showcases a delightful transition from winter's gloom towards the vibrant energy of spring and summer, inviting residents and visitors alike to embrace outdoor adventures and the beauty of blooming nature. April is truly a pivotal month, balancing the refreshing spring air with a welcoming abundance of sunshine.
In Yongsan, South Korea, the likelihood of sunny weather sees subtle fluctuations throughout the year. Observing the data, April stands at 42%, a modest decline from the previous few months but still relatively favorable compared to the summer months. This trend reveals a pattern where early spring shows a decent chance of sunshine, transitioning gently into less sunny days as the heat of summer approaches. Notably, as the year progresses, the chances dip significantly in July and August, with only 25% and 27% respectively. However, as the seasons shift toward autumn, the likelihood of sunny days begins to improve again, hinting at a more balanced climate overall. Thus, while April may not boast the highest sun probabilities, it remains a refreshing transition month teetering between winter's chill and the warmth of summer.
As spring fully unfolds in April, Yongsan, South Korea, welcomes an impressive increase in daylight, totaling 13 hours. This marks a significant rise from the 11 hours in March, contributing to the vibrant energy of the season. The trend of lengthening days is evident, as April transitions into May, which boasts even longer daylight hours of 14. Following the winter months, where daylight dips to a low of 9 hours in January, the gradual increase is not only comforting but invigorating, inviting locals and visitors alike to embrace the beauty of the blooming landscape. With its progressive ascent, daylight in Yongsan encapsulates the essence of spring's renewal, paving the way for leisurely evenings and outdoor activities as the days grow longer.
As spring unfolds in Yongsan, South Korea, April brings with it an invigorating wind that averages around 3.0 m/s (7 mph). This marks a subtle uptick from March's lower winds of 2.5 m/s (6 mph), hinting at the promise of warmer days ahead. With April's breezy embrace, the gentle gusts offer a refreshing contrast to the calm, colder months, while still maintaining a moderate flow as the city transitions toward summer. Continuing the trend observed throughout the year, wind speeds tend to dip during the peak summer months, suggesting that the springtime breezes are a cherished interlude before the sultry days of July and August settle in. Overall, April’s winds lend a lively spirit to the landscape, inviting residents and visitors alike to enjoy the vibrant outdoor atmosphere.
Weather in Yongsan varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Yongsan, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January present notably contrasting weather. In January, temperatures are significantly colder, with a minimum of -20°C (-4°F) and an average of -1°C (30°F), compared to April's milder range, where the minimum is -1°C (30°F) and the average rises to 13°C (55°F). Precipitation is also more frequent in April, with 69 mm (2.7 in) falling over six days, compared to January's 25 mm (1.0 in) across just four days. Additionally, April has a higher humidity level of 74%, while January's humidity is slightly lower at 71%. For a more detailed look at Yongsan's January weather, you can refer to Yongsan weather in January.
April weather presents a more temperate climate compared to February, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 29°C (85°F), resulting in an average of 13°C (55°F). In contrast, February is characterized by colder temperatures, with a minimum of -15°C (5°F) and a maximum of 22°C (71°F), leading to a much chillier average of just 1°C (34°F). Additionally, April sees more precipitation at 69 mm (2.7 in) over approximately 6 days, compared to February's 34 mm (1.3 in) over 4 days. Humidity levels are also higher in April at 74%, while February experiences a lower humidity of 66%. For more details on February's weather specifics, see Yongsan weather in February.
In comparing the weather between March and April, April experiences milder temperatures, with a minimum of -1°C (30°F) and an average of 13°C (55°F), significantly warmer than March's minimum of -5°C (23°F) and average of 8°C (46°F). The maximum temperature in April reaches up to 29°C (85°F), offering a brighter and more comfortable atmosphere compared to March's peak of 24°C (75°F). Precipitation is slightly higher in April at 69 mm (2.7 in) over 6 days, while March sees 65 mm (2.5 in) over 8 days, indicating a wetter but more temperate April. Additionally, April's humidity at 74% surpasses March's 64%, contributing to a more humid environment as spring progresses. For more details, you can view the specifics on Yongsan weather in March.
April weather features a wider temperature range, with lows dipping down to -1°C (30°F) and highs reaching up to 29°C (85°F), resulting in an average temperature of 13°C (55°F). The month sees about 69 mm (2.7 in) of precipitation over six days, with humidity levels averaging 74%. In contrast, May brings milder conditions with a minimum temperature of 4°C (40°F) and a maximum of 31°C (89°F), leading to a more pleasant average temperature of 18°C (65°F). Rainfall increases slightly to 82 mm (3.2 in) across eight days, and humidity rises to 79%. For more details, check Yongsan weather in May.
April and June present distinct weather patterns, marked by significant differences in temperature and humidity. In April, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant average of 13°C (55°F), peaking at a warm 29°C (85°F). The month experiences around 69 mm (2.7 in) of precipitation over 6 days, with humidity averaging 74%. Conversely, June showcases much warmer conditions, with a minimum of 11°C (52°F) and an average of 22°C (73°F), reaching a maximum of 34°C (94°F). Precipitation increases to 102 mm (4.0 in) across 8 days and humidity rises to 82%. For more detailed insights on the weather patterns, check out Yongsan weather in June.
April and July exhibit stark contrasts in weather patterns. In April, temperatures range from a chilly minimum of -1°C (30°F) to a comfortable maximum of 29°C (85°F), with an average of 13°C (55°F). This month experiences 69 mm (2.7 in) of precipitation over six days and maintains a humidity level of 74%. In contrast, July is significantly warmer, with temperatures ranging from a minimum of 17°C (62°F) to a scorching maximum of 36°C (98°F) and an average of 25°C (78°F). However, it also sees increased precipitation, totaling 222 mm (8.8 in) over 16 days, coupled with higher humidity at 91%. For a more detailed look at the weather patterns, check out Yongsan weather in July.
In comparing the weather of April and August, it’s clear that these months present distinct climates. April typically sees milder temperatures, with a range from a chilly -1°C (30°F) at night to a pleasant 29°C (85°F) during the day, and an average temperature of 13°C (55°F). The month experiences about 69 mm (2.7 in) of precipitation over roughly six days, along with a relative humidity of 74%.
In contrast, August is significantly warmer, with minimum temperatures starting at 16°C (60°F) and peaking at a scorching 38°C (100°F), averaging around 26°C (79°F). The summer month is also much wetter, with 229 mm (9.0 in) of rainfall spread over 16 days, and humidity levels rising to 91%. For more specific details on summer conditions, visit Yongsan weather in August.
April and September present distinct differences in weather patterns. In April, temperatures range from a minimum of -1°C (30°F) to a maximum of 29°C (85°F), with an average of 13°C (55°F). The month experiences about 69 mm (2.7 in) of precipitation over approximately 6 days, with humidity levels around 74%. In contrast, September is noticeably warmer, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 30°C (87°F) and an average of 21°C (70°F). This month sees significantly more rainfall, totaling 182 mm (7.2 in) across about 10 days, and a slight increase in humidity at 77%. For more details on September weather, you can visit Yongsan weather in September.
When comparing the weather in April and October, both months exhibit a similar range of temperatures and humidity levels, but with distinctive characteristics. April typically has a minimum temperature of -1°C (30°F) and can reach a maximum of 29°C (85°F), with an average temperature of 13°C (55°F). In contrast, October sees slightly milder conditions, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 31°C (88°F) and an average of 14°C (58°F).
Precipitation levels are comparable, with April receiving around 69 mm (2.7 in) and October slightly higher at 73 mm (2.9 in), both experiencing about six days of rainfall. Additionally, October has a higher humidity level at 78% compared to April's 74%. For a more detailed look at October weather, check out Yongsan weather in October.
April and November present contrasting weather patterns. In April, temperatures range significantly from a chilly minimum of -1°C (30°F) to a warm maximum of 29°C (85°F), producing an average temperature of 13°C (55°F). The month also experiences relatively higher precipitation, measuring 69 mm (2.7 in) over about six days, with humidity sitting at 74%. In stark comparison, November's temperatures are generally cooler, peaking at 21°C (70°F) and dipping to a minimum of -5°C (23°F), with an average of just 8°C (46°F). Rainfall decreases to 31 mm (1.2 in) over five days, accompanied by an increase in humidity to 80%. For more details about weather conditions in November, you can visit Yongsan weather in November.
April and December present contrasting weather patterns. In April, temperatures range from a chilly minimum of -1°C (30°F) to a delightful maximum of 29°C (85°F), with an average of 13°C (55°F). This month typically sees 69 mm (2.7 in) of precipitation over about 6 days, coupled with 74% humidity. In stark contrast, December is much colder, featuring a minimum of -13°C (8°F) and a maximum of 15°C (59°F), with an average temperature of just 1°C (33°F). Precipitation drops to 24 mm (1.0 in) over 3 days, and humidity is slightly higher at 76%. For more detailed information about Yongsan weather, check out Yongsan weather in December.
April in Yongsan marks a vibrant transition, as temperatures rise significantly from the chilly winter months, creating a comfortable and inviting atmosphere. The increase in warmth is coupled with a moderate amount of precipitation, making April distinctively softer and more humid compared to the stark temperature swings often seen in the colder months. With an average humidity of 74%, the air carries a refreshing quality, enhancing the experience of outdoor activities and blooming landscapes. For a deeper understanding of how April fits into the broader context of Yongsan's weather patterns, explore our detailed insights at Yongsan Climate.