April Weather in Wonju, South Korea

Last updated: October 30, 2025

In April, Wonju, South Korea experiences a delightful transition into spring, marked by temperatures ranging from a minimum of -3°C (27°F) to a comfortable maximum of 27°C (81°F), with an average of 12°C (53°F). Visitors can expect the landscape to flourish as the month brings a total of 83 mm (3.3 in) of precipitation, spread over approximately seven rainy days. The humidity level hovers around 74%, creating a refreshing atmosphere that enhances the beauty of the blossoming scenery. Whether hiking in the mild weather or enjoying the vibrant local culture, April in Wonju offers a captivating experience for nature lovers and adventurers alike.

April Temperature in Wonju

In April, Wonju, South Korea, begins to shake off the harsh grip of winter, showcasing a noticeable transition towards warmer days. With temperatures ranging from a brisk minimum of -3°C (27°F) to a pleasant maximum of 27°C (81°F), the average climbs to a comfortable 12°C (53°F). This month marks a stark contrast to the chill of the preceding months, as the city experiences a significant upswing in warmth and sunlight. The gradual rise in temperatures not only invites the blooming of cherry blossoms but also beckons residents and visitors to embrace outdoor activities, making April an enchanting time in Wonju. As spring fully takes hold, the city prepares for the even warmer days that lie ahead in May and June.

April Weather in Wonju: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Wonju, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wonju, April typically has an average temperature of 12°C (53°F), with highs reaching up to 27°C (81°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec273143536371767768564330
Data source: Temperature data for Wonju 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.

April Precipitation in Wonju

In April, Wonju, South Korea, experiences a significant uptick in precipitation, with 83 mm (3.3 inches) of rainfall occurring over 7 days. This increase marks a notable rise from the previous months, where March recorded 64 mm (2.5 inches) of rain across 7 days. As spring deepens, April’s rainfall represents a transition towards the more temperate and wetter months ahead, laying a foundation for the 110 mm (4.3 inches) expected in May. This pattern highlights a clear trend of escalating precipitation as the region gears up for the summer monsoon season, emphasizing the shift from the dry winter months to a more lush, vibrant environment.

April Precipitation Trends in Wonju

The chart displays monthly precipitation patterns in Wonju, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Wonju, April typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec2432648411092243258154675225
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Wonju

April ushers in a noticeable rise in humidity in Wonju, South Korea, reaching 74%, a slight increase from 64% in March. This uptick signifies the transition to warmer months, as the region prepares for the summer ahead. Following April, humidity continues to climb, peaking at an impressive 91% in both July and August. The gradual increase from February’s 66% to April's levels hints at the impending heat and moisture of the following season, setting the stage for a lush, vibrant environment. With the departure of winter's chill, April’s more humid climate provides a refreshing shift, inviting residents and visitors to enjoy the blossoming landscapes.

April Average Humidity in Wonju

This chart illustrates the average monthly humidity levels in Wonju, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Wonju is approximately 74%, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Wonju

As spring emerges in Wonju, South Korea, the UV Index experiences a notable shift, jumping to 9 in April, marking it as a period of very high exposure. With a burn time of just 15 minutes, this increase signals a critical need for sun protection during outdoor activities. This trend of rising UV levels not only reflects the warming weather but also carries into May, where the UV Index remains steady at 9. As the days lengthen and the sun's intensity escalates, it's vital for residents and visitors alike to stay vigilant against UV radiation. Preparing for sun exposure is essential; consider looking for shade and applying sunscreen frequently. For more detailed insights, check out the Wonju UV Index.

Maximum UV Index Levels in Wonju for April

The chart shows the monthly maximum UV Index (UVI) for Wonju in April, 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 April, the maximum UV index in Wonju typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3469911111210743
Data source: Wonju April 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.

April Sunshine in Wonju

April in Wonju, South Korea, embraces the spring with 281 hours of sunshine, marking a delightful increase from the preceding months. This surge reflects the gradual transition from winter's gloom, which saw only 199 hours in January, to the vibrant sunshine of spring. As the month progresses, the sunshine hours continue on an upward trend, foreshadowing the radiant days of May that follow, with an impressive 304 hours. This pattern highlights not only the warming weather but also the burgeoning outdoor life as residents and visitors alike relish the brightening days in this picturesque city. As April unfolds, it sets the stage for the lush beauty of summer, fitting seamlessly into the annual rhythm of Wonju’s brightening skies.

Monthly Sunshine Duration in Wonju: April Highlighted

The April sunshine duration represents the total number of hours Wonju experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec199h239h274h281h304h310h279h264h251h258h233h239h
Data source: Wonju April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Wonju During April

April in Wonju, South Korea, continues a trend of gradually diminishing sunshine as spring unfolds. With a 42% likelihood of sunny days, the chances remain consistent with March, hinting at a transitional period where the sun fights against lingering clouds. Interestingly, as temperatures rise heading into May, the probability of sunny weather dips further to 35%, suggesting that the initial warmth of spring may come with a higher chance of overcast skies. Overall, April marks a pivotal moment in the seasons, balancing the tail end of winter's clarity with the unpredictable whims of early spring.

Percentage of Sunny Days in April in Wonju

The chart illustrates the percentage of sunny days in Wonju throughout the year, with April 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 Wonju experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec57%55%42%42%35%36%29%25%35%45%55%64%
Data source: Wonju April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Wonju in April

As spring unfolds in Wonju, South Korea, April brings a noticeable increase in daylight, with the sun lighting up the sky for 13 hours each day. This surge in daylight marks a significant leap from the 11 hours of March, highlighting a shift towards longer, brighter days that are characteristic of the season. Following the transition from winter's shorter days, April serves as a delightful prelude to the summer months, where daylight peaks at 14 hours in May and June. This gradual rise in daylight not only enhances the vibrancy of the city but also invites residents and visitors alike to embrace the outdoors, basking in the longer afternoons and blooming landscapes.

Average Daylight Hours in Wonju for April

The chart illustrates the variation in daylight duration in Wonju throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 53m10h 47m11h 57m13h 9m14h 10m14h 40m14h 25m13h 32m12h 23m11h 12m10h 9m9h 37m
Data source: Wonju daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Wonju

In April, Wonju, South Korea, experiences a gentle breeze with an average wind speed of 2.4 m/s (5 mph), aligning closely with the months surrounding it. The wind picks up slightly from March's 2.3 m/s, showcasing a subtle transition toward the warmer spring season. As temperatures rise in May, the winds remain consistent, dropping only marginally to 2.3 m/s. This slight decrease in wind speed is reflective of the approaching summer months, where the wind generally tends to calm down further. Notably, the cooler months of January through March feature higher wind speeds, with January reaching up to 2.5 m/s. Overall, April serves as a harmonious blend of tranquility and warmth, making it a delightful time to experience the budding energy of spring in Wonju.

Average April Wind Speed in Wonju

The chart displays monthly wind speed patterns in Wonju, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.82.32.4 m/s2.31.81.61.72.01.82.22.4
Data source: Wonju April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Wonju Compares to Other Months

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

April and January exhibit stark contrasts in weather conditions. April sees a significant increase in temperatures, with a minimum of -3°C (27°F) rising to an average of 12°C (53°F) and a maximum of 27°C (81°F). In contrast, January is much colder, starting at a minimum of -20°C (-3°F) and averaging -3°C (28°F), only reaching a maximum of 12°C (54°F). Additionally, April experiences more precipitation, with 83 mm (3.3 in) over approximately 7 days, compared to January's more modest 24 mm (0.9 in) over just 4 days. Humidity levels are also slightly higher in April at 74%, compared to 71% in January. For a detailed look at January’s weather patterns, you can visit Wonju weather in January.

April weather is significantly milder compared to February, with temperatures ranging from a chilly minimum of -3°C (27°F) to a warm maximum of 27°C (81°F), resulting in a pleasant average of 12°C (53°F). In contrast, February sees much colder temperatures, with minimums plunging to -17°C (2°F) and an average of just 0°C (32°F), peaking at 19°C (66°F). Additionally, April experiences higher precipitation levels, with 83 mm (3.3 in) over 7 days, while February has lower precipitation of 32 mm (1.2 in) over just 4 days. Moreover, the humidity in April is generally higher at 74%, compared to February’s 66%. For more detailed information, you can check Wonju weather in February.

April showcases a noticeable shift in weather compared to March, with average temperatures rising from 6°C (44°F) in March to 12°C (53°F) in April. The minimum temperatures are also milder, moving from -6°C (21°F) in March to -3°C (27°F) in April, while maximum temperatures reach up to 27°C (81°F) in April compared to 21°C (70°F) in March. Precipitation levels increase slightly in April to 83 mm (3.3 in), up from 64 mm (2.5 in) in March, although both months experience rain on seven days. Humidity is higher in April at 74%, compared to 64% in March. For more detailed insights, you can check Wonju weather in March.

April and May present a noticeable shift in weather patterns. In April, temperatures typically range from a low of -3°C (27°F) to a high of 27°C (81°F), with an average of 12°C (53°F). Meanwhile, May boasts milder conditions, featuring temperatures from a minimum of 2°C (37°F) to a maximum of 31°C (88°F) and an average of 17°C (63°F). Precipitation increases slightly from 83 mm (3.3 in) in April to 110 mm (4.3 in) in May, occurring over more days in the latter month—10 days compared to April's 7 days. Additionally, humidity rises from 74% in April to 79% in May, contributing to a more humid feel. For a closer look at May's typical weather patterns, check out Wonju weather in May.

April and June present distinctly different weather patterns. In April, temperatures range from a chilly minimum of -3°C (27°F) to a mild maximum of 27°C (81°F), with an average of 12°C (53°F). The month sees about 83 mm (3.3 in) of precipitation over approximately 7 days and boasts a relative humidity of 74%. In contrast, June temperatures rise significantly, with a minimum of 10°C (50°F) and a maximum soaring to 33°C (91°F), resulting in a warmer average of 21°C (71°F). Precipitation slightly increases to 92 mm (3.6 in) over 9 days, coupled with higher humidity levels reaching 82%. For more detailed information, check out Wonju weather in June.

In comparing the weather of April and July, significant differences can be observed. April experiences a more moderate temperature range with a minimum of -3°C (27°F) and a maximum of 27°C (81°F), averaging around 12°C (53°F). It features moderate humidity at 74% and receives a total of 83 mm (3.3 in) of precipitation over roughly 7 days. In contrast, July sees much warmer conditions with minimum temperatures of 15°C (59°F) and maximums reaching up to 35°C (95°F); the average temperature is a balmy 25°C (77°F). July is also considerably wetter, with 242 mm (9.5 in) of rainfall spread across 16 days, accompanied by high humidity levels of 91%. For more detailed information, you can check Wonju weather in July.

April and August present stark contrasts in weather patterns. In April, temperatures range from a chilly minimum of -3°C (27°F) to a pleasant average of 12°C (53°F), peaking at a mild 27°C (81°F). The month experiences average precipitation of 83 mm (3.3 in) over about 7 days, with humidity levels around 74%. In comparison, August is significantly warmer, with temperatures starting at a minimum of 13°C (56°F), averaging 25°C (77°F), and reaching highs of 37°C (99°F). This month is also much wetter, receiving 258 mm (10.2 in) of rain across approximately 17 days, along with elevated humidity levels of 91%. For more insights on the August climate, visit Wonju weather in August.

April and September offer distinct weather characteristics that reflect the transition between spring and autumn. In April, temperatures range from a chilly minimum of -3°C (27°F) to a comfortable average of 12°C (53°F), peaking at 27°C (81°F). Despite the pleasant warmth, April experiences around 83 mm (3.3 in) of precipitation over approximately 7 days, combined with a humidity level of 74%. In contrast, September sees milder minimum temperatures starting at 6°C (44°F) and reaching an average of 20°C (68°F), with highs of 29°C (85°F). While September is generally warmer, it also tends to be wetter, with precipitation totaling 154 mm (6.1 in) over 10 days and slightly higher humidity at 77%. For more insights into the weather dynamics of September, check out Wonju weather in September.

April and October present a fascinating comparison in terms of weather. In April, temperatures can range from a minimum of -3°C (27°F) to a comfortable average of 12°C (53°F), peaking at a warm 27°C (81°F). This month tends to be wetter, with precipitation totaling 83 mm (3.3 in) over about 7 days, while humidity lingers around 74%. In contrast, October sees a slightly milder temperature range, with a minimum of -1°C (30°F) and an average of 13°C (56°F), reaching a maximum of 28°C (83°F). Precipitation decreases to 67 mm (2.6 in) spread across just 6 days, and humidity rises slightly to 78%. For more details about October weather, you can visit Wonju weather in October.

April and November bring distinct weather patterns, with April typically showcasing milder temperatures and more variability. In April, the temperature ranges from a minimum of -3°C (27°F) to a maximum of 27°C (81°F), contributing to an average of 12°C (53°F). The month is also characterized by 83 mm (3.3 in) of precipitation over approximately 7 days, with a humidity level of 74%.

Conversely, November presents cooler conditions, with temperatures dipping lower, ranging from -7°C (20°F) to a maximum of 20°C (68°F) and averaging around 6°C (43°F). The month experiences less rainfall, totaling 52 mm (2.1 in) spread over 6 days, but humidity is slightly higher at 80%. For detailed information on November weather, you can visit Wonju weather in November.

April and December present stark contrasts in weather conditions. April sees a much wider temperature range, with minimums around -3°C (27°F) and maximums reaching 27°C (81°F), resulting in an average temperature of 12°C (53°F). In contrast, December experiences much colder temperatures, with minimums dropping to -24°C (-11°F) and an average just below freezing at -1°C (30°F). Precipitation is also higher in April, totaling 83 mm (3.3 in) over about 7 days, whereas December has significantly lower precipitation at 25 mm (1.0 in) over 5 days. Humidity levels are relatively similar, with April at 74% and December slightly higher at 76%. For more details on December weather, visit Wonju weather in December.

Compare Wonju's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Wonju

April in Wonju marks a delightful transition into spring, characterized by a refreshing blend of mild temperatures and increasing humidity. As the chill of winter recedes, residents experience significantly warmer days, with highs reaching pleasantly warm levels. However, the month also brings its share of rainfall, with a notable number of wet days, making it a vibrant period of rejuvenation in the landscape. This contrasts sharply with the colder months preceding it, highlighting April as a time of blossoming beauty and a respite from the winter chill. For more detailed insights into the yearly patterns, visit Wonju Climate.