When to go · Jeju City
Jeju City in January
Good month. Outside the best window (Apr–Jun and Sep–Oct (mild, before summer humidity and after typhoon season)). Across South Korea: Cold and dry, low prices; ski in Gangwon; Seollal can fall late in the month — check.
Key facts
- Verdict
- Good
- Temperature
- 8°C46°F / 3°C37°F
- average high / low
- Rain days
- 10
- Crowds
- Low
- South Korea overall
- Prices
- Low
- South Korea overall
Verdict
Outside the best window (Apr–Jun and Sep–Oct (mild, before summer humidity and after typhoon season)). Across South Korea: Cold and dry, low prices; ski in Gangwon; Seollal can fall late in the month — check.
Weather in January
- Jeju CityHighs around 8 °C, lows around 3 °C, rain on about 10 daysHighs around 46 °F, lows around 37 °F, rain on about 10 days
- Jeju, South Korea · Jeju City, Seogwipo, Hallasancool
Windy and wet; the island takes the first hit of most typhoons. Hallasan summit gets snow in winter; flights stop in strong crosswinds.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Seollal (Lunar New Year) big impact
About 5–8 Feb 2027 (lunar; incl. substitute day — check) · South Korea
Three-plus days off: many restaurants and shops close, trains and buses sold out, palaces open (often free), Seoul quiet.
Crowds and prices
- Crowds · South Korea overall
- Low
- Prices · South Korea overall
- Low
South Korea overall: Cold and dry, low prices; ski in Gangwon; Seollal can fall late in the month — check.
What to pack
- A warm coat, hat and gloves for mornings and evenings
- A rain jacket or umbrella and shoes that dry fast
- Layers: a fleece or light jacket