Nationwide Subfreezing Temperatures Predominate Thursday Forecast Yonhap’s 9:01 a.m. Thursday bulletin lists twelve major cities with daytime highs at or below freezing and nighttime lows plunging to –9 °C in Seoul and –12 °C in Chuncheon, all under clear skies and zero percent precipitation probability[1]. The capital will see a high of –1 °C, underscoring persistent subzero conditions in urban centers. Inland locations such as Daegu, Daejeon, Jeonju and Busan remain cold but sunny, with highs between 2 °C and 4 °C[1].

Jeju Island Remains Only Region with Significant Rain Risk Jeju stands out with a 60 % chance of rain, despite a relatively mild high of 5 °C and low of 3 °C, contrasting sharply with the dry mainland[1]. The island’s forecast calls for wet conditions while the rest of the peninsula stays dry, prompting travelers to prepare for precipitation only there. This localized moisture pattern highlights Jeju’s distinct micro‑climate during the cold spell.

Inland Cities Experience Minimal Precipitation Probabilities Gwangju registers a modest 10 % rain chance, the sole mainland city with any measurable chance of showers, while all other surveyed cities report zero percent precipitation[1]. Chuncheon records the coldest overnight low at –12 °C, emphasizing frost and ice concerns for the region. The uniform sunny, frigid weather simplifies travel planning outside Jeju and Gwangju.

Earlier Tuesday Forecast Showed Cloudy Conditions, Highlighting Forecast Shift Yonhap’s January 6 bulletin described a cooler, cloudier day with Seoul expected to reach 4 °C, drop to –6 °C at night, and face a 30 % rain probability[2]. That report also noted Jeju’s 60 % rain risk and Chuncheon’s –10 °C low, with most cities holding 20–30 % rain chances. The contrast between Tuesday’s cloudy outlook and Thursday’s sunny skies illustrates rapid short‑term atmospheric changes across the peninsula.