Last updated: October 30, 2025
April in Busan, South Korea welcomes spring with mild temperatures and moderate humidity. The maximum temperature reaches around 19°C (66°F), while the average hovers at 14°C (57°F), fluctuating down to a minimum of 6°C (42°F). This month also brings about 114 mm (4.5 in) of rain across roughly 7 days, contributing to the lush landscapes. With a humidity level of 75%, visitors can expect a refreshing atmosphere, perfect for exploring the city's vibrant culture and stunning coastal scenery.
In April, Busan, South Korea, begins to embrace the warmth of spring, with temperatures making a noticeable leap. The minimum temperature settles at a comfortable 6°C (42°F), rising to an average of 14°C (57°F), while the maximum reaches a pleasant 19°C (66°F). This marks a significant transition from the chilly grip of the winter months, with temperatures becoming increasingly mild as the city shakes off the last remnants of cold, inviting locals and visitors alike to enjoy outdoor activities and the vibrant blooms of spring. As April unfolds, the gentle rise in warmth sets the stage for the even warmer months ahead, making it an ideal time to experience Busan's beauty and charm.
In April, Busan experiences a notable uptick in precipitation, with an average of 114 mm (4.5 in) of rainfall over 7 days. This marks an increase compared to the preceding months, particularly March, which recorded 100 mm (3.9 in). The consistent rise in precipitation as spring progresses signifies a shift in the weather pattern, hinting at the onset of the wet season that peaks in the summer months. As flowers bloom and temperatures warm, April’s enhanced rainfall not only nourishes the vibrant landscapes but also sets the stage for the heavier downpours that will follow in May and June. This trend of increasing precipitation underscores the transitional nature of Busan's spring climate, gradually paving the way for the summer monsoon.
April marks a notable transition in humidity levels in Busan, South Korea, as the average climbs to 75%, signaling the onset of the more humid months ahead. Following March's relatively moderate 65%, April's elevated humidity hints at the approaching warmth of spring, contrasting sharply with the winter months of January and February, which recorded 72% and 67%, respectively. As the year progresses, Busan faces a sharp increase in moisture, with May's humidity reaching 83% and peaking at an impressive 95% in July. This upward trend from April onward highlights a significant shift, making it clear that the coastal city is on the cusp of its warm and humid summer season.
April marks a significant shift in the UV Index of Busan, South Korea, with levels soaring to 10, categorizing it as very high and drastically reducing the safe sun exposure time to just 15 minutes. This spike follows a steady upward trend from previous months, where the UV Index escalated from a moderate 4 in January to a high 7 in March. As spring takes hold, the risk of sunburn increases, emphasizing the need for sun protection strategies. This trend continues into May with the UV Index remaining at 10, before reaching its peak in the summer months. For those planning outdoor activities, it's essential to stay informed about the UV Index in your area. To learn more about managing your sun safety, visit Busan UV Index.
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As April beckons in Busan, South Korea, the city basks in 278 hours of glorious sunshine, setting the stage for vibrant springtime activities. This month marks a delightful upward trend from the 267 hours recorded in March, seamlessly transitioning into the sun-drenched days of May, where residents and visitors alike will enjoy an even more generous 295 hours of sunlight. The increasing daylight reflects the awakening of nature, with blooming flowers and bustling outdoor cafes mirroring the rise in temperature. With the warmth of April's sun and the promise of summer on the horizon, Busan transforms into a captivating destination, inviting everyone to bask in its radiant charm.
When it comes to sunny weather in April in Busan, South Korea, the likelihood hovers around 45%, showing a slight decrease from the preceding months of January and February, which enjoy sunnier dispositions with chances of 53% and 54%, respectively. As spring unfolds, the probability of sunny days decreases compared to the earlier months, primarily due to the transition into the wetter season. This pattern continues into May at 39%, when cloudy days begin to take precedence. However, the trend shifts dramatically toward the year's end; with October reaching 57% and December peaking at 73%, indicating that while April offers moderate sunshine, the city gears up for a much sunnier finish as the year progresses.
In April, Busan welcomes a notable increase in daylight, with 13 hours of sunshine illuminating the city. This uplift is part of a broader seasonal trend, as daylight gradually extends from the 10 hours experienced in the depths of winter months, January and February. By contrast, March already hints at spring's arrival with an increase to 11 hours. As the days grow longer into May and June, residents enjoy up to 14 hours of daylight, ushering in warmer weather and vibrant outdoor activities. This pattern of increasing daylight not only marks the transition to summer but also enhances the overall ambiance of Busan, making April a pivotal month for both locals and visitors alike. As the seasons shift, the gradual decline in daylight towards the end of the year keeps the cyclical nature of Busan's climate in perspective.
April in Busan, South Korea, features an average wind speed of 6.0 m/s (13 mph), mirroring the gentle breezes of March. This consistency hints at a transitional phase as the city shakes off winter's chill. In the preceding months, winds were slightly stronger in January and February, averaging around 6.6 and 6.9 m/s respectively. However, as spring blossoms, the winds begin to taper off slightly, leading into the calmer days of May, which sees a further decrease to 5.6 m/s (13 mph). This trend reflects a shift toward warmer weather, as warmer months typically bring lighter winds. Interestingly, a more robust breeze returns in the autumn, highlighting the seasonal ebb and flow of Busan's climate. Overall, April's breezy charm underscores the beauty of spring's arrival, making it an ideal time to explore the invigorating coastal landscapes.
Weather in Busan varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Busan, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January exhibit striking differences in weather patterns. In April, temperatures range from a minimum of 6°C (42°F) to a comfortable average of 14°C (57°F), peaking at 19°C (66°F), while January is significantly colder, with temperatures dipping to a minimum of -7°C (20°F) and averaging just 6°C (43°F). Precipitation also varies notably; April sees 114 mm (4.5 in) over about 7 days, creating a wetter environment compared to January's 38 mm (1.5 in) spread across 4 days. Furthermore, humidity levels are slightly higher in April at 75%, compared to January's 72%. For more details about January weather in Busan, you can visit Busan weather in January.
April and February present contrasting weather patterns, characterized by noticeable differences in temperature and precipitation. In April, temperatures range from a minimum of 6°C (42°F) to a maximum of 19°C (66°F), resulting in a milder average of 14°C (57°F) and higher humidity levels at 75%. In contrast, February experiences colder conditions, with temperatures ranging from a low of -5°C (24°F) to a high of 16°C (61°F) and an average of just 7°C (44°F). Additionally, February sees less precipitation, totaling 46 mm (1.8 in) over about 4 days, whereas April receives significantly more rain at 114 mm (4.5 in) across 7 days. For more detailed information about February weather, you can check Busan weather in February.
April tends to be milder and wetter compared to March. The minimum temperature in April is 6°C (42°F), rising to an average of 14°C (57°F) and peaking at 19°C (66°F), whereas March starts cooler with a minimum of 1°C (34°F) and an average of 11°C (51°F), reaching a maximum of 16°C (62°F). Additionally, April experiences more precipitation, with 114 mm (4.5 in) over 7 days, compared to March's 100 mm (3.9 in) over 8 days. The humidity in April is also higher, sitting at 75% compared to March's 65%. For more details, you can check Busan weather in March.
April and May offer a notable transition in weather patterns. In April, temperatures range from a minimum of 6°C (42°F) to a maximum of 19°C (66°F), with an average of 14°C (57°F). The month sees a total precipitation of 114 mm (4.5 in) over about 7 days, with humidity at 75%. Conversely, May experiences slightly warmer temperatures, with a minimum of 10°C (50°F) and a maximum of 22°C (71°F), averaging 17°C (63°F). While precipitation remains similar at 113 mm (4.5 in) also over 7 days, May is characterized by increased humidity at 83%. For more detailed insights, check out Busan weather in May.
April and June present quite different weather patterns. In April, temperatures range from a minimum of 6°C (42°F) to a maximum of 19°C (66°F), with an average of 14°C (57°F). The month sees about 114 mm (4.5 in) of precipitation across 7 days, along with a relative humidity of 75%. In contrast, June enjoys warmer conditions with minimum temperatures of 16°C (62°F) and maximums reaching 25°C (78°F), averaging around 20°C (69°F). However, June experiences even more rainfall, totaling 167 mm (6.6 in) over 8 days, and higher humidity at 87%. For more detailed insights on the weather in June, visit Busan weather in June.
April and July present contrasting weather patterns. In April, temperatures hover between a minimum of 6°C (42°F) and a maximum of 19°C (66°F), with an average of 14°C (57°F). The month is characterized by moderate precipitation of 114 mm (4.5 in) over about 7 days and a humidity level around 75%. In stark contrast, July experiences warmer temperatures, with a minimum of 19°C (66°F) and a maximum soaring to 30°C (87°F), averaging at 24°C (76°F). This month also sees significantly higher rainfall at 249 mm (9.8 in) spread over 13 days, alongside higher humidity levels of 95%. For more details on July weather in Busan, you can visit Busan weather in July.
In comparing the weather of April and August, distinct differences emerge. April experiences milder temperatures, with daily averages around 14°C (57°F) and highs reaching 19°C (66°F), alongside significant rainfall totaling 114 mm over about 7 days and a humidity level of 75%. In contrast, August brings much warmer conditions, with average temperatures around 27°C (81°F) and peaks of 31°C (88°F). The summer month also sees increased precipitation, totaling 158 mm across approximately 13 days, paired with higher humidity at 93%. For more details on August's weather patterns, you can visit Busan weather in August.
April and September present striking contrasts in weather. In April, temperatures range from a cool minimum of 6°C (42°F) to a comfortable average of 14°C (57°F) and reach a maximum of 19°C (66°F). The month sees considerable rainfall, with about 114 mm (4.5 in) spread over 7 days, and humidity is relatively high at 75%. In contrast, September boasts warmer conditions, with temperatures starting at a minimum of 17°C (63°F) and averaging 23°C (75°F), peaking at 29°C (84°F). However, it also experiences more rainfall, accumulating 245 mm (9.6 in) over 11 days, coupled with an increase in humidity to 80%. For more details, check out Busan weather in September.
April and October present distinct weather patterns, reflecting the transition between seasons. In April, temperatures range from a cool minimum of 6°C (42°F) to a pleasant maximum of 19°C (66°F), with an average temperature of 14°C (57°F). The month sees significant rainfall, totaling 114 mm (4.5 in) over approximately 7 days, and humidity levels average around 75%. In contrast, October offers warmer temperatures, with a minimum of 9°C (49°F) and a maximum reaching 26°C (78°F), resulting in a more comfortable average of 19°C (67°F). It experiences less precipitation, around 91 mm (3.6 in) over just 5 days, while humidity remains slightly higher at 77%. For more details on October’s climate, you can check Busan weather in October.
April and November share a similar average temperature of 14°C (57°F), but their other weather characteristics differ significantly. In April, temperatures can range from a cooler 6°C (42°F) to a warmer 19°C (66°F), while November's temperatures typically fluctuate between 3°C (38°F) and 21°C (70°F). April is notably wetter, experiencing approximately 114 mm (4.5 in) of rainfall over about 7 days, compared to November's much drier climate, which sees only 24 mm (1.0 in) of rain over just 3 days. Despite the similarity in humidity levels, with both months sitting at 75%, November offers a milder and less rainy experience overall. For more information, you can find details on Busan weather in November.
April and December present contrasting weather patterns. In April, temperatures range from a minimum of 6°C (42°F) to a maximum of 19°C (66°F), with an average of 14°C (57°F). The month typically sees around 114 mm (4.5 in) of precipitation over 7 days, resulting in a relatively humid atmosphere at 75%. In contrast, December experiences colder weather, with temperatures averaging 7°C (46°F), dipping to a minimum of -4°C (25°F) and peaking at 18°C (64°F). Precipitation is significantly lower, totaling just 25 mm (1.0 in) across 3 days, and humidity remains at a comparable 73%. For more details about December weather, you can visit Busan weather in December.
As spring unfolds in Busan, April brings a refreshing transition from the chill of winter, featuring pleasant temperatures and an inviting atmosphere. With average highs peaking at a comfortable 19°C and a notable humidity level around 75%, the weather makes it ideal for outdoor activities. While the month experiences some precipitation across about a week, it’s generally milder when compared to the heavier rainfalls characteristic of summer. This unique blend of warmth and occasional showers provides an excellent backdrop for exploring the city's natural beauty and cultural richness. To learn more about the yearly climate patterns, explore Busan Climate.