South Korea’s Dec 5 Weather Outlook Brings Cooler Capitals, Sunny Coasts, and Dropping Rain Chances
Updated (2 articles)
Dec 5 Forecast Shows Cooler Temperatures Across Capital Region Seoul will reach a high of 2 °C and dip to –6 °C, while nearby Incheon records a high of 2 °C and a low of –5 °C on Friday, Dec 5 [1]. Both cities face cloudy skies with a 20 % chance of precipitation, a notable decline from the previous day's forecast. Suwon, slightly warmer, expects a high of 3 °C and a low of –6 °C under mostly sunny conditions and only a 10 % rain probability.
Southern Coastal Cities Expect Sunny Skies and Minimal Rain Gangneung is forecast to be the warmest mainland city at 8 °C high and –3 °C low, enjoying sunny skies and zero rain risk [1]. Busan will see a high of 8 °C and a low of 1 °C, also sunny with no chance of rain, while Jeju remains cloudier with a 10 % rain chance and temperatures of 10 °C high and 7 °C low [1]. These coastal forecasts contrast sharply with the inland capital region’s cooler, cloudier outlook.
Comparison With Dec 4 Highlights Shift in Rain Probabilities On Dec 4, Seoul’s forecast listed a high of 2 °C but a much colder low of –9 °C and a 60 % chance of rain, indicating a dramatic reduction in precipitation risk by the next day [2][1]. Jeju’s Dec 4 forecast predicted 11 °C high, 5 °C low, and a 60 % rain probability, whereas Dec 5 shows a cooler high of 10 °C, a higher low of 7 °C, and only a 10 % chance of rain [2][1]. Busan’s sunny, rain‑free conditions remain consistent across both days.
Consistent Sunny Conditions Persist in Busan and Gangneung Both forecasts report sunny skies and zero rain probability for Busan on Dec 4 and Dec 5, with temperatures shifting slightly from 8 °C/–2 °C to 8 °C/1 °C [2][1]. Gangneung also maintains sunny weather, moving from a 6 °C high on Dec 4 to 8 °C on Dec 5, while retaining a rain‑free outlook [2][1]. This stability underscores the reliability of coastal weather patterns in the region.
Regional Variations Emphasize Higher Temperatures on Jeju Island Jeju’s Dec 4 forecast anticipated rain with a 60 % chance and a high of 11 °C, whereas Dec 5 predicts mostly cloudy skies, a reduced rain chance of 10 %, and a slightly cooler high of 10 °C but a warmer low of 7 °C [2][1]. The island’s shift from likely rain to mostly dry conditions highlights rapid atmospheric changes affecting the southernmost province.
Sources
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1.
Yonhap: South Korea Weather Forecast for Friday, Dec 5 – Provides detailed city‑by‑city temperature highs and lows, cloud cover, and low precipitation probabilities, emphasizing sunny conditions in Gangneung and Busan and a modest rain chance in Seoul and Incheon.
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2.
Yonhap: Dec 04 South Korea Weather Forecast – Outlines the previous day's temperatures and higher rain probabilities, especially in Seoul and Jeju, establishing a baseline that illustrates the notable decrease in expected precipitation by Dec 5.
Timeline
Dec 4, 2025 – Seoul expects a high of 2 °C and a low of –9 °C with sunny skies and a 60 % chance of rain, while Jeju forecasts 11 °C/5 °C and rain at a 60 % probability; Busan anticipates 8 °C/–2 °C and clear skies, Gwangju 6 °C/–3 °C with clouds and a 30 % rain chance, Gangneung 6 °C/–6 °C sunny, and Chuncheon 2 °C/–14 °C sunny but a 60 % chance of rain, according to Yonhap’s 9:01 a.m. report [2].
Dec 5, 2025 – Seoul anticipates a high of 2 °C and a low of –6 °C with cloudy skies and a 20 % chance of rain; Incheon expects 2 °C/–5 °C, Suwon 3 °C/–6 °C sunny with a 10 % rain chance, Gangneung 8 °C/–3 °C sunny, Jeju 10 °C/7 °C cloudy with a 10 % rain chance, and Busan 8 °C/1 °C sunny, all reported by Yonhap [1].