Last updated: October 30, 2025
April in Seongsu, South Korea is a vibrant transition into spring, characterized by pleasant temperatures that peak at 28°C (83°F) while averaging around 12°C (55°F). As the month progresses, residents and visitors alike can experience some fluctuation, with minimum lows dipping to -2°C (29°F). Rainfall contributes to the lush scenery, with a total precipitation of 63 mm (2.5 in) over the course of 7 days, bringing a refreshing ambiance to the environment. The humidity levels, sitting at a notable 78%, add to the overall springtime feel, making April an exciting time to explore this dynamic urban landscape.
In April, Seongsu, South Korea, experiences a refreshing transition as winter retreats and spring takes hold. With temperatures ranging from a crisp -2°C (29°F) at night to a delightful 28°C (83°F) during the day, this month showcases an uplifting average of 12°C (55°F). The warmest days of the year begin to emerge, hinting at the summer ahead. This significant rise in temperature compared to the preceding months reflects the region’s vibrant seasonal shift, making April a perfect time for outdoor activities and enjoying the blossoming scenery. As cherry blossoms bloom and outdoor cafes fill up, the pleasant climate invites both locals and visitors to embrace the beauty of spring in Seongsu.
April in Seongsu, South Korea, sees a precipitation total of 63 mm (2.5 in), with rain gracing the region on 7 days throughout the month. Following the wetter March, which recorded a substantial 68 mm (2.7 in), April demonstrates a slight decrease in rainfall, yet maintains a significant amount to support the vibrant spring landscape. As the transition into May approaches, where precipitation jumps to 90 mm (3.5 in) over 9 days, April serves as a reminder of the gradual climactic shift. This month balances pleasant spring weather with just enough rainfall, setting the stage for the robust greenery that follows.
As April unfolds in Seongsu, South Korea, the atmosphere becomes notably more humid, with levels reaching 78%—a significant uptick from the preceding months. This shift sets the stage for the upcoming warmer seasons, as humidity has a trend of rising throughout spring and into summer. Compare this to March, where humidity was at a more comfortable 67%, and you'll feel the distinct change ushering in a more tropical feel. The transition continues into May, where humidity surges even further to 85%, hinting at the impending sultry summer months that often see levels soaring above 90%. April serves as a pivotal point in this annual humidity cycle, bridging the cooler, drier winter months to the steamy, muggy conditions of summer that define Seongsu's climate.
As April arrives in Seongsu, South Korea, the UV Index escalates to 10, marking a significant leap into the very high exposure category. With an estimated burn time of just 15 minutes, the intensity of sunlight becomes a serious consideration for outdoor enthusiasts. This sharp rise from the previous month's 7 indicates a clear trend toward higher UV levels as spring unfolds, pushing residents and visitors alike to take protective measures. As the days grow sunnier, maintaining awareness of the UV Index is essential for skin safety. For detailed insights and daily updates on UV levels, check Seongsu UV Index.
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April brings a remarkable surge in sunshine to Seongsu, South Korea, with 283 hours basking in daylight—a delightful increase from 277 hours in March. This steady climb in sunlight hours, which began with 192 hours in January, showcases the region's gradual transition into the warmer months. As spring unfolds, the days grow longer, culminating in an impressive 304 hours of sunshine in May, inviting both locals and visitors to embrace outdoor activities and the vibrant atmosphere. The consistent upward trend, especially from March to April, is a clear indication that Seongsu is stepping into a season of warmth and brightness, setting the stage for the sun-drenched days of summer ahead.
In Seongsu, South Korea, April marks an interesting turning point in the yearly weather trends. With a 41% chance of sunny days, it aligns with the month's average, echoing the sunlit potentials of January and February while displaying a notable decline from the somewhat cloudier March. As spring emerges, the region transitions from the chill of winter, providing a refreshing balance of sunshine and mild temperatures. Interestingly, this sunny likelihood is higher compared to the following months of May and June, suggesting that April offers a delightful window for outdoor activities before the summer heat sets in. Overall, it's a month where residents and visitors alike may enjoy a fair share of sunlight before the rainy season approaches.
As April unfolds in Seongsu, South Korea, residents are greeted by an invigorating increase in daylight, enjoying 13 hours of sunshine—a noticeable jump from the 11 hours in March. This transition marks the beginning of a vibrant spring, setting the stage for even longer days ahead as May brings an impressive 14 hours of daylight. The gradual lengthening of days from the winter months, where January and February offer only 10 hours, highlights the shift towards brighter and more lively seasons. With daylight steadily increasing, April not only invites residents to relish more outdoor activities but also signifies the awakening of nature, making it a truly delightful month in Seongsu.
April in Seongsu, South Korea, brings a refreshing breath of air as the average wind speed hovers around 2.8 m/s (6 mph), a trend that carries over from the preceding months. While March experiences a slight dip to 2.4 m/s (5 mph), the winds in April pick up again, matching the steady pace of January and May. This mild wind pattern continues into the early summer months, maintaining a gentle feel, particularly in June and July when speeds decrease to 2.0 m/s (4 mph) and 1.9 m/s (4 mph), respectively. Overall, the April winds encapsulate a delightful transitional period, as Seongsu begins to shake off the chill of winter while gradually embracing the warmth of the approaching summer.
Weather in Seongsu varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Seongsu, focusing on differences in temperature, rainfall, humidity, and UV levels.
April weather is significantly milder than that of January, with average temperatures ranging from a chilly -2°C (29°F) to a warm 28°C (83°F), reflecting a greater range and a more comfortable climate overall. In contrast, January temperatures can drop to a frigid -19°C (-2°F), with an average of -1°C (31°F) and a maximum of only 16°C (60°F). Additionally, April experiences more precipitation, averaging 63 mm (2.5 in) over about 7 days, compared to January's lighter 29 mm (1.1 in) over 5 days. The humidity is also higher in April at 78%, compared to 71% in January, contributing to a fresher feel as spring approaches. For more details on January weather in Seongsu, you can visit Seongsu weather in January.
April generally offers a more temperate climate compared to February, featuring a wider temperature range with lows around -2°C (29°F) and highs reaching up to 28°C (83°F). In contrast, February experiences much colder conditions, with average temperatures hovering around 1°C (34°F) and occasional lows of -14°C (7°F). Additionally, April sees more precipitation, totaling 63 mm (2.5 inches) over 7 days, compared to February's 39 mm (1.5 inches) over just 5 days. The humidity is also slightly higher in April at 78%, while February sits at a lower 68%. For more detailed information on February's climate, you can explore Seongsu weather in February.
April generally experiences milder temperatures compared to March, with minimums rising from -5°C (24°F) to -2°C (29°F) and average temperatures increasing from 7°C (45°F) in March to 12°C (55°F). The maximum temperature in April can reach up to 28°C (83°F), surpassing March's peak of 23°C (74°F). However, April sees slightly less precipitation, with 63 mm (2.5 in) over 7 days compared to March's 68 mm (2.7 in) spread across 8 days. Additionally, humidity increases in April to 78%, up from 67% in March, contributing to a more humid environment. For more details on March weather, check out Seongsu weather in March.
April and May present a noticeable transformation in weather conditions. In April, temperatures range from a chilly minimum of -2°C (29°F) to a mild high of 28°C (83°F), with an average temperature of 12°C (55°F). The month experiences about 63 mm (2.5 in) of precipitation across 7 days, accompanied by a humidity level of 78%. In contrast, May warms up significantly, with temperatures starting at a minimum of 3°C (38°F) and reaching a maximum of 30°C (86°F), averaging 18°C (64°F). However, it also sees increased rainfall, totaling around 90 mm (3.5 in) over 9 days, and higher humidity levels at 85%. This shift emphasizes May's transition into a warmer and wetter season compared to the cool, variable weather of April. For more detailed insights into the weather conditions during this transition, check out Seongsu weather in May.
April and June present notably different weather patterns. In April, temperatures can dip as low as -2°C (29°F) but generally hover around a milder average of 12°C (55°F), with daytime highs reaching up to 28°C (83°F). Precipitation is relatively moderate at 63 mm (2.5 in) over about seven days, coupled with a humidity level of 78%. In contrast, June is warmer and more humid, with minimum temperatures starting at 10°C (51°F) and averaging 22°C (71°F), peaking at a high of 33°C (91°F). Rainfall increases significantly to 131 mm (5.2 in) across ten days, accompanied by higher humidity at 87%. For more details on the weather during this month, you can check out Seongsu weather in June.
April and July present contrasting weather experiences. In April, temperatures fluctuate significantly, ranging from a chilly -2°C (29°F) at night to a pleasant 28°C (83°F) during the day, with an average temperature of 12°C (55°F). This month sees relatively low precipitation levels at 63 mm (2.5 in) over about 7 days, and a moderate humidity of 78%. In stark contrast, July is much warmer and more humid, with nighttime lows around 17°C (62°F) and daytime highs reaching up to 35°C (95°F), averaging 25°C (77°F). However, July is also marked by significantly higher rainfall, totaling 261 mm (10.3 in) over 17 days and a humidity level that peaks at 95%. For more details, you can check Seongsu weather in July.
April and August present quite contrasting weather patterns. In April, temperatures range from a chilly minimum of -2°C (29°F) to a pleasant average of 12°C (55°F), peaking at 28°C (83°F). The month sees about 63 mm (2.5 in) of precipitation spread over 7 days, with humidity levels around 78%. In contrast, August brings significantly warmer conditions, with temperatures starting at a comfortable 14°C (58°F) and averaging 26°C (79°F), reaching highs of 37°C (99°F). This month also experiences heavier rainfall, totaling 214 mm (8.4 in) over 17 days and higher humidity at 93%. For a more detailed perspective on the weather in August, you can visit Seongsu weather in August.
April and September exhibit notable contrasts in weather patterns. In April, temperatures vary more dramatically with a minimum of -2°C (29°F) and a maximum reaching 28°C (83°F), resulting in an average of 12°C (55°F). The month sees moderate precipitation of 63 mm (2.5 in) over 7 days and a humidity level of 78%. In contrast, September features milder temperatures, with a minimum of 8°C (48°F) and a maximum of 31°C (88°F), leading to a warmer average of 21°C (70°F). However, it experiences heavier rainfall of 201 mm (7.9 in) over 11 days and slightly higher humidity at 80%. For more specific insights into September weather in Seongsu, visit Seongsu weather in September.
April and October present distinct yet comparable weather patterns. In April, temperatures range from a chilly minimum of -2°C (29°F) to an average of 12°C (55°F), reaching a maximum of 28°C (83°F). This month experiences approximately 63 mm (2.5 in) of precipitation over about 7 days, with humidity consistently at 78%. In contrast, October sees slightly warmer temperatures, with a minimum of 0°C (32°F), an average of 14°C (58°F), and a maximum of 30°C (86°F). Precipitation increases marginally to 67 mm (2.6 in) over just 5 days, while humidity remains constant at 78%. For a more detailed look at October's climate, check out Seongsu weather in October.
April and November present quite different weather patterns. In April, temperatures range from a chilly minimum of -2°C (29°F) to a comfortable maximum of 28°C (83°F), with an average temperature of 12°C (55°F). The month sees around 63 mm (2.5 inches) of precipitation over about 7 days, along with a relatively high humidity of 78%. In contrast, November experiences colder temperatures, with a minimum of -4°C (26°F) and a maximum of 21°C (70°F), averaging at 8°C (46°F). The month has less precipitation, totaling 42 mm (1.6 inches) over 6 days, and slightly lower humidity at 76%. For more details on November weather, visit Seongsu weather in November.
April and December present distinctly different weather patterns. In April, temperatures can range from a chilly -2°C (29°F) at night to a warm 28°C (83°F) during the day, with an average temperature of 12°C (55°F). The month sees about 63 mm (2.5 in) of precipitation over 7 days, accompanied by relatively high humidity at 78%. In contrast, December is much colder, with temperatures dropping to a minimum of -13°C (8°F) and peaking at 17°C (63°F), averaging just 1°C (34°F). Precipitation is lower, totaling 31 mm (1.2 in) over 5 days, while humidity is slightly lower at 73%. For a closer look at December's weather, you can visit Seongsu weather in December.
As April unfolds in Seongsu, the weather offers a refreshing departure from the colder days of winter. With temperatures rising and an average that leans toward the mild, residents and visitors alike can bask in the pleasant warmth that characterizes the month. The blend of increased humidity and sporadic rainfall not only rejuvenates the landscape but also sets the stage for a vibrant spring. Compared to the chillier months preceding it, April presents a blossoming atmosphere that encourages outdoor activities and exploration. For those eager to learn more about Seongsu's climate throughout the year, check out Seongsu Climate.