Seoul weather in January
Temperature, rain and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Poor
Best time to visit: April – June, September – October
What is the weather like in Seoul in January?
In January, Seoul is freezing cold: daytime highs average 2 °C, and nights often drop below freezing (−6 °C). Expect around 6 hours of sunshine a day. Precipitation, often as snow, falls on about 4 days, totalling 19 mm. Snow falls on about 2 days. All in all, January is not an ideal month for a holiday in Seoul.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 36 | 38 | 40 |
| Day | 4° | 2° | 4° |
| Night | −4° | −6° | −4° |
| Sun | 5 h | 6 h | 6 h |
| Rain days | 5 | 4 | 4 |
More details for January
- Daylight
- 9 h 50 min07:46 – 17:36
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 47 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 2 days1 cm or more of fresh snowAll months
- Time zone
- UTC+9Asia/Seoul
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %42 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in January
- Warm jacket
- Hat, scarf & gloves
Seoul in January: quick answers
Is Seoul hot in January?
No. In January, Seoul is freezing cold: daytime highs average 2 °C and nights drop to about −6 °C.
Does it rain much in Seoul in January?
Rain is rare: about 4 days bring 19 mm in total.
Seoul month by month
The whole year in SeoulAll destinations: South KoreaWhere to go in January
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