January is the coldest time of year in Korea, with Seoul's average temperature dropping to -3.5°C. The dry air and bitter cold waves persist, but with thorough cold-weather preparation and winter event information, you can enjoy a trip unique to this season. We've compiled all the temperature data, clothing guides, and winter events you need for a January trip to Korea.
January Temperature Comparison Across Major Korean Cities
Seoul vs. Major Cities Average Temperature
Seoul's average temperature in January is approximately -3.5°C, with an average high of about 2.5°C and an average low of about -7.0°C. This is more than 10°C lower than Tokyo (about 6.6°C) or Osaka (about 6.8°C), so thorough cold-weather preparation is essential for a winter trip to Seoul.
January Average Temperature and Precipitation by City in Korea
- Seoul: Average 0.2°C / Precipitation 23.7mm
- Busan: Average 5.8°C / Precipitation 32.9mm
- Daegu: Average 4.0°C / Precipitation 22mm
- Incheon: Average -2.6°C / Precipitation 30.4mm
- Jeju Island: Average 8.0°C / Precipitation approx. 50mm
- Gwangju: Average 2.7°C / Precipitation 19mm
- Daejeon: Average 1.0°C / Precipitation 28.9mm
Winter precipitation is generally low, but roads can be slippery due to snow and frost, so be sure to bring non-slip shoes.
What to Wear and Cold-Weather Tips for January in Korea
Essential Cold-Weather Items
In January, minimizing skin exposure is key. The less contact your body has with the outside air, the more comfortable your trip will be.
- Thick long padded coat or down jacket
- Scarf, gloves, and knit hat to protect your head and neck
- Heat-tech or other high-insulation inner wear
- Winter boots or layered socks
- Hand warmers - available at convenience stores for about 1,000 won
It's easy to overlook ear protection, so be sure to bring a knit hat or earmuffs. For winter travel in Korea, having a NAMANE Card means you won't need to pull out cash in the cold — it handles both transportation and payments in one tap.
January Winter Events and Countdowns in Seoul
Lotte World Tower Countdown
A special countdown event is held at Seoul Sky, the observation deck of the 555-meter, 123-story Lotte World Tower. You can ring in the New Year with fireworks projected on the tower walls, and on December 31st, the observation deck extends its hours until 12:30 AM.
Gwanghwamun Square Countdown
A grand countdown light show is held at Gwanghwamun Square, located on Sejong-daero in central Seoul. The countdown begins at 23:55, and you can also enjoy the Seoul Winter Festa market. If you're planning a year-end trip to Seoul, check out our Complete Guide to New Year's in Seoul as well.
Bosingak Bell-Ringing Ceremony
A traditional event dating back to the Joseon Dynasty, the bell at Jongnu is rung late on the night of December 31st to welcome the New Year. It's a special opportunity to experience Korea's unique New Year's tradition.
Year-End and New Year Reminders
The year-end and New Year period in Korea differs somewhat from Japan. January 1st is a public holiday, but December 31st is not. However, many facilities close early in preparation for the New Year, so be sure to check business hours in advance. You can find additional essential winter information in our Complete Guide to Winter Travel in Korea.
Frequently Asked Questions (FAQ)
Q. How is indoor heating in Seoul during a January trip?
Indoor heating in Korea is very strong, and the temperature difference between outdoors and indoors can exceed 20°C. Indoor spaces like subways, shopping malls, and cafes maintain comfortable temperatures, so we recommend layered outfits that are easy to put on and take off.
Q. Can I see snow in Seoul in January?
Seoul's January precipitation is about 23.7mm, which isn't much, but there are days when it snows. Snow-covered scenery at Gyeongbokgung Palace or Bukchon Hanok Village is among Seoul's most iconic winter photo spots — visiting on a snowy day lets you capture magical photos.
Q. Is it better to use cash instead of a transit card in January?
In the cold winter, taking off your gloves to pull cash from your wallet is a struggle in itself. Refer to our NAMANE Card Usage Guide to prepare a transit card in advance — a single tap lets you ride the subway and bus, making winter travel much more convenient.
