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Wintry Forecast Brings Sleet and Near‑Freezing Temperatures to Seoul, Incheon

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Latest Forecast Shows Sleet and Sharp Temperature Drop in Seoul The 9:01 a.m. forecast released on Jan 12 predicts a high of 3 °C and a low of –9 °C for Seoul, with sleet as the expected precipitation and a 60 % chance of rain, creating slippery travel conditions[1].

Incheon Mirrors Capital With Similar Cold and Precipitation Incheon’s Jan 12 outlook lists a high of 5 °C, a low of –8 °C, sleet, and the same 60 % rain probability, indicating comparable weather risks along the western coast[1].

Central Cities Forecast Sunny Yet High Rain Probabilities Suwon, Cheongju and Daejeon are each forecast sunny with temperatures ranging from 3 °C to 5 °C and lows near –9 °C, but all carry a 60 % chance of rain, highlighting a paradox of clear skies and heavy shower risk[1].

Earlier Forecast Predicted Cloudy Skies and Lower Rain Chances The Jan 9 briefing showed Seoul and Incheon cloudy with highs of 6 °C, lows around –5 °C, and a 40 % rain risk, while central cities were also cloudy with 30‑40 % rain probabilities; Chuncheon was sunny with a 60 % rain chance, illustrating a shift toward harsher conditions in the later forecast[2].

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Timeline

Dec 27 2025 – The 9:01 a.m. nationwide outlook predicts “Seoul and Incheon forecast snow with a 60 % rain chance, Seoul at 2 °C high and –11 °C low,” while Suwon and Cheongju see sunny skies yet still carry a 60 % rain risk; Daejeon is sunny with 60 % rain, Chuncheon stays cloudy with 40 % rain, Gangneung remains cloud‑covered with 0 % rain, and Jeonju, Gwangju, Jeju, Daegu and Busan show a mix of sun, clouds and modest rain probabilities [5].

Dec 29 2025 – The 9:01 a.m. bulletin shows “Seoul highs 8 °C, lows 3 °C, 10 % rain” and “Incheon 7 °C/5 °C, 0 % rain,” while Cheongju and Daejeon each face a 60 % rain risk, Chuncheon expects sleet with a 60 % chance, and the remaining cities display varied cloudiness and rain chances, highlighting a sharp regional split in precipitation types [4].

Jan 4 2026 – The Sunday morning forecast at 9:01 a.m. reports “Seoul 4 °C high, –4 °C low, cloudy, 20 % rain,” with Incheon and Chuncheon enjoying sunny intervals (both 20 % rain), Jeonju cloudy with 30 % rain, and Jeju cloudy with 30 % rain, indicating generally cool, partly sunny conditions across the country [3].

Jan 9 2026 – The 9:01 a.m. update notes “Seoul and Incheon cloudy with a 40 % rain risk” and “Chuncheon sunny with a 60 % rain chance, Gangneung sunny with 20 % rain,” while Suwon, Cheongju and Daejeon remain cloudy (30‑40 % rain), and the southern ports of Daegu and Busan stay cloudy with only 20 % rain probability, underscoring a predominantly overcast day with isolated sunshine [2].

Jan 12 2026 – The latest 9:01 a.m. forecast warns “Seoul high 3 °C, low –9 °C with sleet and a 60 % rain chance” and “Incheon 5 °C/–8 °C with sleet, 60 % rain,” while Suwon, Cheongju and Daejeon are sunny yet still face 60 % rain odds, Chuncheon records a sunny high of 0 °C with an 80 % rain probability, and Jeju, Daegu and Busan show mostly sunny to cloudy skies with low rain chances, reflecting a wintry mix of sleet, snow and rain across the peninsula [1].

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