South Korea in January: where is it warmest?
In January, Jeju is the warmest place with 8 °C by day, Sokcho the coolest with 2 °C. 0 of 9 destinations have good holiday weather.
All destinations in January, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
South Korea in January: quick answers
South Korea in January: where is it warmest?
The warmest places in January are Jeju (8 °C), Busan (7 °C) and Ulsan (6 °C).
South Korea in January: where is the sea warmest?
The sea is warmest at Jeju (15 °C), Busan (15 °C) and Ulsan (15 °C).
South Korea in January: where is the weather best?
The best holiday weather in January – warm, sunny and dry – is in Busan, Daegu and Gyeongju.
South Korea month by month
South Korea: weather & best time to visit
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences