June Weather in Seoul, South Korea

Last updated: October 30, 2025

June in Seoul, South Korea ushers in a vibrant transition into summer, boasting a maximum temperature that can soar up to 35°C (94°F). The month averages a comfortable 22°C (72°F), providing residents and visitors alike with pleasant days, while the evenings can be refreshingly cool, dipping to a minimum of 12°C (54°F). Although June is relatively humid, with levels reaching 85%, the city experiences about 86 mm (3.4 in) of precipitation across 8 days, supporting the lush green landscapes that characterize this season. This blend of warmth and humidity creates an inviting atmosphere, perfect for exploring Seoul's rich culture and stunning scenery.

June Temperature in Seoul

In June, Seoul, South Korea transitions into the warmth of summer, showcasing a significant rise in temperatures as the month progresses. With minimums settling around 12°C (54°F) and averages climbing to 22°C (72°F), the city starts to buzz with outdoor activities. The peak temperatures can soar to an impressive 35°C (94°F), making it one of the hottest months of the year. This striking warm-up marks a clear shift from the cooler spring months, signaling not just higher temperatures but also the vibrant energy of city life, where locals and visitors alike revel in outdoor festivals and explore the lush parks that come alive in the heat. As the thermometers climb, June presents a perfect opportunity to enjoy Seoul’s dynamic atmosphere before the sweltering July and August set in.

June Weather in Seoul: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Seoul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seoul, June typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (94°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec283244546472797970584531
Data source: Temperature data for Seoul 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.

June Precipitation in Seoul

June in Seoul marks a notable transition in precipitation patterns, with rainfall leveling off after the heavy downpours of May. During this month, the city receives 86 mm (3.4 in) of rain over approximately 8 days, striking a balance between the lush spring growth and the impending summer deluge. This amount is substantial yet moderate compared to the following months, indicating a shift towards the more intense rainfall expected in July and August, where averages soar to 252 mm and 269 mm, respectively. As the season progresses, the frequency and volume of rain create a vibrant, green landscape, setting the stage for the hot summer ahead.

June Precipitation Trends in Seoul

The chart displays monthly precipitation patterns in Seoul, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Seoul, June typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec1922465511186253269133635422
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Seoul

In June, Seoul experiences a notable shift in humidity, peaking at an average of 85%. This increase serves as a precursor to the even higher humidity levels typically seen in July and August, which hover around 91%. The rise from 81% in May to 85% in June illustrates the gradual onset of summer, characterized by a thickening atmosphere that can feel stifling. As the season progresses, residents and visitors alike prepare for the sultry days ahead, a marked contrast to the drier winter months where humidity dipped to 65%. This trend underscores the dynamic climate of Seoul, balancing between crisp, cool winter nights and the sweltering embrace of summer humidity.

June Average Humidity in Seoul

This chart illustrates the average monthly humidity levels in Seoul, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Seoul is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%65%65%75%81%85%91%91%77%79%80%74%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Seoul

In June, Seoul experiences a dramatic peak in its UV Index, reaching an impressive 10, which falls into the very high exposure category. This marks a steady increase from previous months, particularly as sunlight intensity escalates with the approach of summer. With a burn time of just 15 minutes, residents and visitors alike should take precautions to protect their skin during outdoor activities. Following the trend observed from April through June, where the UV Index jumped from 8 in April to 9 in May, June remains a crucial month for sun safety. As it transitions to even higher levels in July and August, understanding and adapting to these changes in UV exposure is essential. For more detailed information, check out the Seoul UV Index.

Maximum UV Index Levels in Seoul for June

The chart shows the monthly maximum UV Index (UVI) for Seoul in June, 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 June, the maximum UV index in Seoul typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891011119643
Data source: Seoul June 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.

June Sunshine in Seoul

As June unfolds in Seoul, South Korea, residents and visitors alike bask in the vibrant warmth of 317 hours of sunshine, marking it as one of the sunniest months of the year. This delightful surge follows a steady increase from January's 199 hours, with each month gradually welcoming more sunlight. The warmth of spring, the peak of May's 311 hours, transitions seamlessly into the summer heat, setting the stage for lush greenery and outdoor adventures. Interestingly, while July and August see a slight dip to 294 and 289 hours respectively, the overall trend highlights a consistently bright and inviting atmosphere in the early summer, making June the perfect time to enjoy Seoul’s lively parks and festivals under clear, sunny skies.

Monthly Sunshine Duration in Seoul: June Highlighted

The June sunshine duration represents the total number of hours Seoul experiences direct sunlight during the month of June, excluding cloudy or obstructed periods. This chart compares the sunshine duration of June with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec199h242h282h287h311h317h294h289h262h263h231h235h
Data source: Seoul June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Seoul During June

As June rolls around in Seoul, South Korea, the likelihood of sunny weather dips to 36%, marking a trend of decreasing sunshine as the year progresses from the bright days of winter to the humid summer months. This decline follows a subtle yet notable pattern, with April and May both offering slightly brighter prospects at 44% and 37% respectively. In stark contrast, the post-summer months see an uptick in sunny days, especially in September and November, where chances rise again to 41% and 58%. Thus, while June may not be the sunniest month, it serves as a transition into the vibrant summer season, where the occasional beam of sunlight can still break through the clouds.

Percentage of Sunny Days in June in Seoul

The chart illustrates the percentage of sunny days in Seoul throughout the year, with June 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 Seoul experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec55%55%43%44%37%36%30%30%41%43%58%64%
Data source: Seoul June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Seoul in June

In June, Seoul experiences a delightful continuation of its springtime sunshine, boasting 14 hours of daylight. This duration, consistent with May and July, highlights the peak of the city's vibrant summer season. As the days gradually lengthened from the shorter daylight of 9 hours in January to the robust 14 hours in mid-year, residents can fully embrace outdoor activities and cultural events. Following this month, the trend indicates a gentle decline in daylight hours, with August bringing a slight reduction, yet the lingering warmth and light of early summer lingers on. The rich tapestry of daylight in Seoul reflects the changing seasons, encouraging both locals and visitors to enjoy the city's picturesque landscapes well into the evening.

Average Daylight Hours in Seoul for June

The chart illustrates the variation in daylight duration in Seoul throughout the year, with June 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: Seoul daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Seoul

In Seoul, South Korea, June ushers in a shift in the wind's rhythm, with average speeds tapering down to 2.0 m/s (4 mph)—the calmest of the year. This gentle breeze, a departure from the slightly stronger gusts of the earlier months, creates a serene atmosphere as summer blooms. Following a gradual decline from the spring months, June's winds are softer than those felt in January through May, signaling a time when the city starts to warm and the vibrant energy shifts to more relaxed outdoor activities. As July approaches, the breezes continue to whisper softly, further highlighting a seasonal pattern of decreasing wind speeds during the height of summer in Seoul.

Average June Wind Speed in Seoul

The chart displays monthly wind speed patterns in Seoul, with values for each month shown alongside June's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how June's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.83.12.52.72.62.0 m/s1.82.22.42.22.42.7
Data source: Seoul June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Seoul Compares to Other Months

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

June and January present stark contrasts in weather conditions. June experiences a warm climate with temperatures ranging from a minimum of 12°C (54°F) to a scorching maximum of 35°C (94°F), coupled with high humidity at 85% and an average temperature of 22°C (72°F). Precipitation is prevalent, with about 86 mm (3.4 in) of rain over 8 days. In contrast, January is characterized by frigid temperatures, with a minimum of -18°C (1°F) and a maximum of only 13°C (55°F), resulting in an average temperature of -2°C (28°F). The winter month sees significantly less precipitation at 19 mm (0.8 in) over just 2 days and lower humidity at 71%. For more detailed insights, check out Seoul weather in January.

When comparing the weather in June and February, there's a stark contrast in temperatures and conditions. June enjoys a mild to hot climate with average temperatures around 22°C (72°F) and a maximum reaching up to 35°C (94°F), accompanied by high humidity levels of 85% and about 86 mm (3.4 in) of precipitation over 8 days. In contrast, February presents a chilly environment, with average temperatures hovering around 0°C (32°F), and lows dipping as low as -14°C (7°F). Precipitation is much lighter at only 22 mm (0.8 in) over 4 days, and humidity levels are significantly lower at 65%. For more detailed information on February weather in Seoul, you can visit Seoul weather in February.

When comparing the weather in June and March, a striking contrast emerges. June boasts warm temperatures with a minimum of 12°C (54°F) and an average of 22°C (72°F), reaching a maximum of 35°C (94°F). In contrast, March experiences much cooler conditions, with temperatures ranging from a low of -7°C (20°F) to a high of 21°C (70°F) and an average of just 7°C (44°F). Additionally, June is significantly wetter, with 86 mm (3.4 in) of precipitation over 8 days, while March records only 46 mm (1.8 in) over 5 days. Furthermore, humidity levels differ markedly, with June averaging 85%, compared to March's 65%. For more detailed information, you can check Seoul weather in March.

June and April exhibit notable differences in weather patterns. In June, temperatures range from a minimum of 12°C (54°F) to a maximum of 35°C (94°F), with an average of 22°C (72°F). This month also sees higher humidity levels at 85% and increased precipitation, totaling 86 mm (3.4 in) over 8 days. In contrast, April experiences cooler conditions, with temperatures ranging from a chilly 0°C (32°F) to a warmer maximum of 28°C (82°F) and an average of 12°C (54°F). Moreover, April has lower humidity at 75% and less rainfall, amounting to 55 mm (2.2 in) over 6 days. For more insights, visit Seoul weather in April.

In comparing the weather between May and June, June showcases warmer temperatures, with a minimum of 12°C (54°F), an average of 22°C (72°F), and a maximum reaching 35°C (94°F), compared to May's minimum of 6°C (43°F), average of 18°C (64°F), and maximum of 32°C (89°F). However, June experiences slightly less precipitation at 86 mm (3.4 in) over 8 days, while May has a total of 111 mm (4.4 in) over 9 days. Additionally, humidity rises in June to 85%, making it feel more muggy compared to May's 81%. For a more detailed look at the weather in May, you can visit Seoul weather in May.

June and July present distinct weather patterns, with July generally being warmer and wetter than June. In June, temperatures range from a minimum of 12°C (54°F) to a maximum of 35°C (94°F), with an average of 22°C (72°F). The month sees about 86 mm (3.4 in) of precipitation over approximately 8 days, accompanied by a humidity level of 85%. In contrast, July features higher temperatures, with lows around 18°C (64°F) and highs peaking at 36°C (97°F), averaging 26°C (79°F). However, it also experiences significantly more rainfall, totaling 252 mm (9.9 in) across 15 days, and higher humidity at 91%. For more detailed information, you can check the link: Seoul weather in July.

In June, the weather features a pleasant range of temperatures, with a minimum of 12°C (54°F) rising to an average of 22°C (72°F) and peaking at a warm 35°C (94°F). However, it also sees around 86 mm (3.4 in) of precipitation over 8 days, accompanied by a humidity level of 85%. In contrast, August brings even warmer temperatures, with a minimum of 16°C (61°F) and an average of 26°C (80°F), reaching highs of 38°C (101°F). Notably, August is much wetter, receiving 269 mm (10.6 in) of rain over 16 days and experiencing higher humidity at 91%. For a detailed look at the weather in August, visit Seoul weather in August.

In June, the weather typically sees a minimum temperature of 12°C (54°F) and can rise to a maximum of 35°C (94°F), with an average temperature around 22°C (72°F). The month experiences moderate humidity levels at 85% and some rainfall, with precipitation averaging 86 mm (3.4 in) over about 8 days. In contrast, September features slightly cooler temperatures, with minimums around 10°C (50°F) and maximums reaching 31°C (88°F), while the average remains fairly consistent at 21°C (70°F). However, September is generally wetter, receiving around 133 mm (5.2 in) of precipitation over 9 days, coupled with a decrease in humidity to 77%. For more detailed insights, check out Seoul weather in September.

June and October present strikingly different weather patterns. In June, temperatures range from a minimum of 12°C (54°F) to a sweltering maximum of 35°C (94°F), with an average of 22°C (72°F). This month sees significant precipitation of 86 mm (3.4 in) over approximately 8 days, accompanied by high humidity levels averaging 85%. In contrast, October experiences a cooler climate, with temperatures dipping to a minimum of 0°C (32°F) and peaking at 28°C (83°F), resulting in a milder average of 14°C (58°F). This month receives less rainfall—63 mm (2.5 in) over 6 days—and boasts a slightly lower humidity of 79%. For more details, you can check Seoul weather in October.

June and November present striking differences in weather patterns. In June, temperatures range from a minimum of 12°C (54°F) to a sizzling maximum of 35°C (94°F), with an average of 22°C (72°F). This month often brings about 86 mm (3.4 in) of precipitation over 8 days, along with high humidity levels averaging around 85%. In contrast, November experiences a chillier climate, with minimum temperatures dropping to -7°C (21°F) and maximums reaching 21°C (70°F), resulting in an average of 7°C (45°F). The precipitation is lighter at 54 mm (2.1 in) over 5 days and humidity is slightly lower at 80%. For more specific details on November weather trends, check out Seoul weather in November.

June and December present a stark contrast in weather conditions. In June, temperatures range from a mild 12°C (54°F) to a sizzling 35°C (94°F), with an average of 22°C (72°F). The month is characterized by high humidity at 85% and substantial rainfall, averaging 86 mm (3.4 in) over approximately 8 days. In stark contrast, December features much colder weather, with temperatures plummeting to a minimum of -15°C (5°F) and a maximum of only 12°C (54°F), averaging -1°C (31°F). Precipitation is significantly lighter at 22 mm (0.9 in) over just 4 days, and humidity decreases to 74%. For more specific insights into the winter climate, check out Seoul weather in December.

Compare Seoul's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Seoul

As June unfolds in Seoul, the city transitions into a vibrant summer, marked by warmer temperatures and increased humidity. The average temperature climbs significantly, bringing with it the potential for maximum highs that flirt with 35°C (94°F), creating a stark contrast to the cooler spring months. While the rainfall may seem moderate with around 86 mm over just 8 days, the humidity levels soar to 85%, intensifying the heat and making it feel more oppressive. This combination of warmth and moisture sets June apart as a month of notable change, inviting residents and visitors alike to embrace the lively summer atmosphere. For a deeper dive into the climate patterns of this bustling city, explore Seoul Climate.