Last updated: October 30, 2025
In Daejeon, South Korea, May is characterized by warm temperatures and a vibrant atmosphere. The month sees a maximum temperature reaching up to 31°C (89°F), while the average sits comfortably at 18°C (65°F), making it an inviting time for outdoor activities. However, night temperatures can dip to a minimum of 4°C (39°F), highlighting the need for layers as the day transitions into evening. Rainfall is a regular visitor, with a total precipitation amount of 82 mm (3.2 in) over the course of 9 days, resulting in lush greenery and a refreshing ambiance. With an average humidity level of 81%, May in Daejeon brings a unique blend of warmth and freshness, perfect for experiencing the city's natural beauty.
In May, Daejeon transforms into a vibrant hub of warmth, with temperatures lovingly rising as spring reaches its peak. The month opens with a mild minimum of 4°C (39°F) and enjoys a comfortable average of 18°C (65°F), showcasing a significant jump from the earlier months. As the days progress, the maximum temperature can soar to a delightful 31°C (89°F), hinting at the approaching summer. This trend of increasing warmth is marked by a notable contrast to the colder winter months, where temperatures dipped to extreme lows. The rise in warmth not only heralds longer days but also invites both locals and visitors to relish the blooming landscapes and outdoor festivities that characterize this beautiful time in Daejeon.
In May, Daejeon experiences a noticeable uptick in precipitation, with an average of 82 mm (3.2 in) falling over approximately 9 days. This marks a shift from the drier months of spring, as April's rainfall of 66 mm (2.6 in) precedes May's increase. The frequency of rain in May, combined with the escalating rainfall amounts, sets the stage for a lush and vibrant landscape, heralding the arrival of summer. As the month progresses, the transition to June brings even heavier rainfall, with 97 mm (3.8 in) expected over just 8 days, suggesting a trend towards more sustained and intense precipitation in the months ahead. Overall, May serves as a crucial bridge connecting the gentle showers of spring to the downpours of summer in Daejeon.
In May, Daejeon experiences a noticeable rise in humidity, reaching 81%, which marks the beginning of a season characterized by increasing moisture levels. This uptick follows the relatively mild April, where humidity was at 75%. As spring transitions into summer, the air becomes noticeably more humid, laying the groundwork for the even more humid months ahead in June and July, where levels peak at 85% and 91%, respectively. Observing the trend, it's clear that May is a pivotal point, as the city shifts from the crispness of spring to the sultry days of summer, making it a month where one can feel the warmth and humidity intertwining significantly.
As May arrives in Daejeon, South Korea, residents and visitors should brace themselves for a very high UV Index of 9, mirroring the conditions experienced in April. With a burn time of just 15 minutes, the sun’s rays become increasingly potent, urging caution and protective measures. This upward trend in UV intensity continues into June, where the UV Index escalates to an extreme level of 11. Comparing the months, it’s evident that spring transitions quickly into the intense summer sun, emphasizing the need for vigilance regarding skin protection. For more details on UV levels through the year, visit Daejeon UV Index.
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In May, Daejeon, South Korea, basks in an impressive 303 hours of sunshine, marking it as one of the sunniest months of the year. This radiant month showcases a consistent upward trend in sunlight as it transitions from April's 279 hours to June's 301 hours, creating a delightful ambiance perfect for outdoor activities. Following a winter hibernation, the days get longer and brighter, enticing locals and visitors alike to enjoy the blooming gardens and vibrant parks. As the spring season culminates in this sun-drenched month, the residents of Daejeon eagerly embrace the warmth, setting the stage for a radiant summer ahead.
In Daejeon, South Korea, the likelihood of sunny weather in May is notably 36%, reflecting a slight dip compared to the sunnier months earlier in the year. This trend aligns with the overall pattern observed throughout spring, where the chance of sunny days fluctuates from 42% in April to 40% in March. As the region transitions into summer, a further decrease in sunshine potential is evident, with June’s forecast also sitting at 36%. Through these months, Daejeon experiences a blend of sunshine and occasional rainfall, making May a transitional period that hints at the wetter conditions that follow in the warmer months. As residents and visitors plan their May activities, it's wise to prepare for both sun and shade, embracing the diversity of spring weather in this vibrant Korean city.
In Daejeon, South Korea, daylight duration follows a clear and inviting trend as the year progresses. Starting with a modest 9 hours in January, the days gradually lengthen, bringing 10 hours in February and reaching a delightful 11 hours by March. The arrival of spring in April sees a significant jump to 13 hours, with May shining brightly at 14 hours, marking the peak of sunlight before summer. This extended daylight continues through June and July, where it remains a generous 14 hours. As summer fades, the days begin to shorten once again, with daylight dipping to 13 hours in August and gradually retreating to 10 hours by November. The cycle concludes with winter's return, reverting to 9 hours in December. Overall, this rhythm of daylight highlights the dynamic shifts in nature as Daejeon transitions through its seasons.
In Daejeon, South Korea, May brings a gentle breath of wind, with an average speed of 2.9 m/s (6 mph). This month reflects a subtle uptick compared to the calmer April winds, which hover at 3.0 m/s (7 mph). As spring transitions to summer, the prevailing breeze remains relatively mild, mirroring the wind patterns observed in September. Interestingly, the early months of the year exhibit a slightly higher wind speed, suggesting that the winter and early spring months may be more blustery. However, as temperatures rise towards summer, wind speeds dip back to 2.1 m/s (5 mph) in June through August, indicating a shift towards calmer conditions. Overall, May serves as a transitional month, where the winds, though moderate, signal the approaching warmth of summer.
Weather in Daejeon varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Daejeon, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present a striking contrast in weather. In May, temperatures range from a chilly 4°C (39°F) at night to a warm 31°C (89°F) during the day, averaging around 18°C (65°F). The month experiences fairly high humidity at 81%, along with 82 mm (3.2 inches) of precipitation spread over 9 days. In contrast, January is much colder, with temperatures dropping as low as -19°C (-2°F) and only reaching a maximum of 13°C (57°F), averaging -1°C (31°F). Precipitation is minimal in January, totaling only 23 mm (0.9 inches) spread over 4 days, and the humidity stands at a lower 71%. For more detailed information about January weather, visit Daejeon weather in January.
May and February present strikingly different weather conditions. In May, temperatures range from a chilly 4°C (39°F) at night to a warm 31°C (89°F) during the day, with an average of 18°C (65°F). The month sees approximately 82 mm (3.2 in) of precipitation over 9 days, along with high humidity levels at 81%. In contrast, February experiences much colder temperatures, with a minimum of -15°C (6°F) and a maximum of 21°C (71°F), averaging just 1°C (34°F). Precipitation is significantly lower at 35 mm (1.4 in) over 4 days, and the humidity is more bearable at 65%. For more detailed information, you can refer to Daejeon weather in February.
In comparing the weather between March and May, it’s clear that May brings significantly warmer temperatures, with averages soaring to 18°C (65°F) compared to March’s cooler average of 8°C (46°F). While March experiences minimum temperatures as low as -5°C (24°F) and maximums of 24°C (75°F), May enjoys a higher maximum temperature of 31°C (89°F), making it feel much more vibrant and summery. Additionally, May sees more precipitation at 82 mm (3.2 in) over 9 days, compared to March's 63 mm (2.5 in) over 7 days, paired with higher humidity levels of 81% in May versus 65% in March. To explore more about the specifics of March weather, you can check out Daejeon weather in March.
In comparing the weather of May and April, May generally offers warmer temperatures, with a minimum of 4°C (39°F) and an average of 18°C (65°F), reaching up to a maximum of 31°C (89°F). In contrast, April experiences cooler conditions, with temperatures ranging from a minimum of -1°C (30°F) to an average of 13°C (56°F), and a maximum of 29°C (85°F). Additionally, May has higher precipitation, totaling 82 mm (3.2 in) over 9 days, compared to April's 66 mm (2.6 in) over 6 days. Humidity levels are also slightly elevated in May, averaging 81%, compared to 75% in April. For more details, check out Daejeon weather in April.
In comparing the weather between May and June, we observe a noticeable increase in temperature and humidity. May experiences a minimum temperature of 4°C (39°F) and an average of 18°C (65°F), peaking at 31°C (89°F), while June starts at a higher minimum of 11°C (52°F) and averages 23°C (73°F), reaching a maximum of 35°C (95°F). Precipitation also rises slightly from 82 mm (3.2 in) in May over 9 days to 97 mm (3.8 in) in June with 8 rainy days. Additionally, humidity increases from 81% in May to 85% in June, contributing to a more humid feel as summer approaches. For more detailed information, you can check Daejeon weather in June.
May and July exhibit quite different weather patterns. In May, temperatures range from a cool 4°C (39°F) at night to a warm 31°C (89°F) during the day, with an average temperature of 18°C (65°F). This month experiences about 82 mm (3.2 in) of precipitation over 9 days, coupled with a humidity level of 81%. In contrast, July is significantly warmer, with minimum temperatures of 17°C (62°F), average temperatures climbing to 26°C (78°F), and scorching highs reaching up to 38°C (100°F). The rainfall in July is also much heavier, totaling 214 mm (8.4 in) across 16 days, and the humidity rises slightly to 91%. For more detailed insights, check out Daejeon weather in July.
The weather in May tends to be milder, with temperatures ranging from a cool minimum of 4°C (39°F) to a warm maximum of 31°C (89°F) and an average of 18°C (65°F). This month experiences about 82 mm (3.2 in) of precipitation over 9 days, accompanied by relatively high humidity at 81%. In contrast, August is significantly warmer, with minimum temperatures starting at 16°C (61°F) and peaking at an impressive 39°C (102°F), averaging 27°C (80°F). However, the month is also wetter, receiving 221 mm (8.7 in) of rain across 16 days, and the humidity rises slightly to 91%. For more details on what to expect, check out Daejeon weather in August.
May and September offer distinct weather experiences. In May, temperatures can range from a cool 4°C (39°F) at night to a warm 31°C (89°F) during the day, with an average of 18°C (65°F). The month sees about 82 mm (3.2 in) of precipitation over 9 days, coupled with a relatively high humidity level of 81%. In contrast, September has a milder temperature range, with minimums around 9°C (49°F) and maximums peaking at 30°C (87°F), and an average of 21°C (70°F). However, it experiences a significant increase in rainfall, totaling 176 mm (6.9 in) over the same number of rainy days. Humidity is slightly lower at 77%. For more details about the weather specifics for September, you can check Daejeon weather in September.
May and October present distinct weather patterns. In May, temperatures range from a chilly 4°C (39°F) to a warm 31°C (89°F), with an average of 18°C (65°F). The month experiences higher precipitation of 82 mm (3.2 in) spread over 9 days, alongside relatively high humidity at 81%. In contrast, October sees cooler temperatures, with a minimum of 0°C (33°F) and an average of 15°C (59°F), while still reaching a maximum of 31°C (88°F). Precipitation in October is lower, at 68 mm (2.7 in) over just 5 days, and humidity is slightly reduced at 79%. For more details on October weather specifics, check out Daejeon weather in October.
May and November present contrasting weather conditions. In May, temperatures range from a cool 4°C (39°F) to a warm 31°C (89°F), with an average of 18°C (65°F). The month sees 82 mm (3.2 in) of precipitation over about nine days, contributing to a humid environment with an average humidity of 81%. In contrast, November experiences much cooler temperatures, dipping as low as -4°C (24°F) and peaking at 21°C (70°F), with an average temperature of 8°C (47°F). Precipitation is significantly lower at 36 mm (1.4 in) spread over just five days, and humidity hovers around 80%. For a more detailed look at November weather, visit Daejeon weather in November.
May and December present stark contrasts in weather. May boasts a wide temperature range with minimums of 4°C (39°F) and maximums hitting 31°C (89°F), averaging around a pleasant 18°C (65°F). This month experiences relatively high humidity at 81% and receives a fair amount of rain, with 82 mm (3.2 in) falling over about 9 days. In contrast, December is far chillier, with temperatures dipping as low as -14°C (6°F) and only rising to a maximum of 16°C (61°F), averaging just 1°C (34°F). The precipitation dramatically decreases to 26 mm (1.0 in) over 4 days, and humidity is slightly lower at 74%. For further insights into December weather, you can check Daejeon weather in December.
As Daejeon transitions into May, the weather brings a refreshing change, marked by a noticeable rise in temperatures and increased humidity. Unlike the cooler spring months, May can experience warm days that sometimes peak at a sweltering 31°C, while the average temperature settles around a delightful 18°C. Precipitation occurs across about nine days, contributing to the overall humidity level of 81%, which is higher than in earlier months. This combination of warmth and moisture fosters a vibrant atmosphere, making it an ideal time for exploring the city's natural beauty. For more insights into what to expect throughout the year, check out the detailed Daejeon Climate page.