Last updated: January 18, 2025
Daejeon, South Korea, experiences a distinct continental climate characterized by the Köppen-Geiger classes Dwa and Dfa. This region endures cold winters, with temperatures plummeting as low as -20°C (-4°F) in January, while summers can see scorching highs reaching 39°C (103°F) in August. The annual average temperature hovers around 13°C (56°F), illustrating the marked seasonal contrasts that define the climate of this vibrant city.
Daejeon, South Korea, showcases a pronounced seasonal temperature pattern, transitioning from the harsh chills of winter to the warmth of summer. January marks the coldest month, with minimum temperatures dropping to -20°C (-4°F), gradually warming by February to a minimum of -15°C (6°F). As spring approaches, temperatures rise appreciably; March sees averages of 8°C (46°F) and April reaches 13°C (56°F), paving the way for the budding warmth of May, where temperatures peak at 32°C (91°F). The summer months from June to August experience the highest extremes, with July and August both exceeding 35°C (95°F), showcasing maximum temperatures of 39°C (103°F). As autumn sets in, temperatures begin a steady decline, with November experiencing minimums around -5°C (24°F) before winter returns in December with lows reaching -14°C (6°F), concluding the cycle of fluctuating seasonal temperatures.
Daejeon experiences a temperature range from a minimum of -19°C (-2°F) in January to a maximum of 39°C (102°F) in August, as detailed on monthly temperatures in Daejeon. Sintansin has a slightly colder minimum of -20°C (-4°F) in January, paired with a maximum of 39°C (103°F) in August, which can be found at monthly temperatures in Sintansin. Meanwhile, Yuseong records a minimum of -18°C (-1°F) in January and a summer maximum of 39°C (103°F), as noted on monthly temperatures in Yuseong.
Daejeon experiences a diverse precipitation pattern throughout the year, characterized by a gradual increase in rainfall as it transitions from winter to summer. January and February are relatively dry months, with 23 mm (0.9 in) and 34 mm (1.4 in) of precipitation, respectively, typically spread over just a few rainy days. As spring sets in, March and April see a notable rise in rainfall, accumulating 63 mm (2.5 in) and 66 mm (2.6 in) over approximately seven to six days. This trend continues into May, where precipitation reaches 82 mm (3.2 in), marking the onset of a wetter season.
The summer months of July and August are characterized by a significant surge in precipitation, with 223 mm (8.8 in) and 224 mm (8.8 in) respectively, making these the wettest periods of the year, often accompanied by intense storms that can last for 15 to 16 days. Following this peak, September still retains substantial rainfall at 171 mm (6.7 in), but this decreases sharply in October to 68 mm (2.7 in). The later months of the year, November and December, bring a return to drier conditions, with precipitation levels dropping to 38 mm (1.5 in) and 26 mm (1.0 in), respectively, wrapping up the year with relatively few rainy days.
Daejeon, South Korea, experiences notable variations in sunshine duration across the seasons, with a clear upward trend from winter toward summer. January begins with 193 hours of sunshine, gradually increasing in February to 238 hours as days grow longer. The arrival of spring marks a significant rise in sunlight, with March and April reporting 277 hours and 282 hours, respectively. As May arrives, the city enjoys its first peak of the year with 306 hours of sunshine, indicating the burgeoning warmth and longer days, a trend that continues through June.
The summer months maintain substantial sunshine, with June and July having 306 hours and 272 hours respectively, making them among the sunniest periods of the year. However, as summer wanes into August, sunshine slightly diminishes to 278 hours. The transition into autumn shows a gradual decline, particularly in September with 247 hours, and further decreasing through October and November, which see 261 hours and 229 hours, respectively. Despite the decrease, December retains 234 hours of sunshine, underscoring that even in winter, Daejeon enjoys a reasonable amount of daylight. Overall, the data illustrates a vibrant seasonal cycle in sunshine duration, peaking during the late spring and summer months.
Daejeon experiences significant fluctuations in UV Index levels throughout the year, reflecting the changing intensity of solar radiation. In winter months like January and February, the UV Index remains relatively low at 3 and 5, categorized as moderate, which allows for a safe exposure time of 30 minutes without sunscreen. However, as spring approaches, the UV Index escalates to 7 in March, indicating a shift to high exposure levels and reducing burn time to 25 minutes. The peak spring months of April and May witness an index of 9, categorized as very high, with burn times decreasing to just 15 minutes, urging caution during outdoor activities.
The summer months present the starkest increase in UV exposure, reaching an extreme level of 11 in June and July, where even brief sun exposure of 10 minutes can lead to skin damage. August intensifies this trend with a UV Index of 12, the highest level recorded, signaling an urgent need for sun protection. As autumn arrives, the UV Index diminishes but remains notable, with 10 in September and 7 in October—both high enough to require attention. By November and December, the index returns to moderate levels of 5 and 3, offering reprieve from intense UV exposure. This seasonal trend highlights the importance of sun safety measures, particularly during the late spring and summer months when UV radiation is at its peak.
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In Daejeon, South Korea, daylight duration varies noticeably throughout the year, reflecting the changing seasons. January begins the year with just 9 hours of daylight, gradually increasing to 10 hours in February as the days begin to lengthen. March sees a further rise to 11 hours, marking the true onset of spring, which continues to blossom into April with 13 hours of daylight. By May, daylight reaches 14 hours, providing ample time for outdoor activities as the city enjoys warmer weather. This trend persists into June, where residents benefit from the same extensive daylight before the peak summer months.
As summer transitions to autumn, daylight begins to decrease. July remains consistent with 14 hours, while August sees a slight decline to 13 hours. September brings further reduction to 12 hours, as days shorten with the arrival of fall. October and November continue this downward trend, with 11 hours and 10 hours of daylight, respectively. Finally, December returns to 9 hours, akin to the beginning of the year. This cyclical pattern emphasizes the significant impact of seasonal changes on the amount of daylight Daejeon experiences throughout the year, shaping the lifestyle and activities of its residents.
Daejeon, South Korea experiences a diverse climate with cold winters and hot summers. January sees temperatures ranging from -19°C to 13°C, while July and August can soar from 17°C to 39°C. Annual rainfall peaks in the summer months, with July averaging 214 mm, and the city enjoys a good amount of sunshine, especially in May with 303 hours. For more detailed information, visit Daejeon climate.
The climate in Jinjam, South Korea, exhibits distinct seasonal variations. Winter months can see temperatures drop as low as -18°C (1°F) in January, while summer peaks at up to 39°C (102°F) in August. Precipitation is highest in July, averaging 230 mm (9.1 in), and sunshine hours are plentiful, particularly in May and June, with over 300 hours of sun. The moderate climate with periodic rainfall supports a vibrant natural environment in the region. For more details, visit Jinjam climate.
Sintansin, South Korea experiences a diverse climate with cold winters and hot, humid summers. January temperatures range from a minimum of -20°C to a maximum of 13°C, while July sees highs reach up to 38°C. Precipitation peaks in the summer months, particularly in July and August, with rainfall exceeding 200 mm. The area enjoys abundant sunshine, especially in May when it receives about 303 hours. For more details on the climate in this region, visit Sintansin climate.
Yuseong, South Korea experiences a diverse climate characterized by cold winters and warm, humid summers. January sees average temperatures hover around -1°C (31°F), with precipitation peaking in July at 230 mm (9.1 in). The region enjoys significant sunshine, particularly in May and June, with over 300 hours of sun per month. Seasonal variations are pronounced, with summer highs reaching about 39°C (102°F) in August. For more detailed information, visit Yuseong climate.
In conclusion, Daejeon, South Korea, showcases a dynamic interplay of climate factors throughout the year, characterized by distinct seasonal variations in temperature, precipitation, sunshine duration, UV index, and daylight. The city experiences cold winters and hot summers, with notable peaks in both temperature and rainfall during the warmer months. Sunshine duration follows a similar trajectory, fluctuating between shorter daylight hours in winter and longer, sun-soaked days in summer, highlighting the importance of sun protection during peak UV periods. Overall, understanding these climatic trends is essential for residents and visitors alike to adapt their activities and ensure safety while enjoying the unique seasonal experiences that Daejeon has to offer.