Weather in South Korea in December

Cold and crisp, the weather in South Korea in December marks the beginning of winter. Highs in Seoul dip into the low 30s°F (0°C), and nights often fall below freezing. For winter sports fans, the good news is that snow is likely in the north and around ski resorts like Yongpyong. At the same time, cities come alive with twinkling lights, street food stalls and festive markets. Down in the south of the country, places like Jeju and Busan stay milder, though still cool, so pack an extra layer or two. Overall, December is a good month for anyone chasing snowy slopes, vacation charm or a quiet, cozy getaway.

South Korea in December at a glance

December in South Korea is cold and dry, with the season’s first proper snowfall and a festive feel across the country.

• Seoul sees temperatures between 21°F and 37°F (-6°C and 3°C), while Busan stays a bit warmer at 32°F to 48°F (0°C to 9°C).
• Snow begins to blanket the mountains and ski towns, making Gangwon-do’s resorts a winter favorite.
• Cities light up with vacation decorations, markets and comfort food stalls, offering a cheerful contrast to the chill.
• Aside from ski resorts and Christmas week, tourism is quiet, with plenty of budget-friendly deals on flights and hotels.
• Clear skies and crisp air make for scenic walks, peaceful sightseeing and a festive end to the year.

Is December a good time to visit South Korea?

Yes, if you don’t mind the cold, December is a great time to experience a quieter, cozier side of South Korea. In Seoul, daytime temperatures hover around 37°F (3°C), and nights often drop to 21°F (-6°C). Down south, places like Busan and Jeju Island are a little warmer but still brisk. For those weighing up the best time to visit South Korea, December offers a more peaceful, wintery perspective.

Snowfall begins in the mountains, so ski season kicks off in Gangwon-do. For non-skiers, cities like Seoul offer festive lights, Christmas markets and seasonal snacks that turn the streets into winter postcards.

It’s not a big month for sightseeing crowds, which means you can visit museums, temples and palaces without lines. Accommodation is reasonably priced unless you’re staying near a ski resort or traveling over Christmas and New Year. It's also a great time to build a South Korea itinerary focused on slower travel, cultural highlights and seasonal charm.

If you like chilly weather, sparkling lights and the feel of winter settling in, December brings just the right amount of magic.

Average daily temperatures in December

Winter properly sets in across South Korea in December. It’s cold, dry and often sunny, especially in the early weeks.

In Seoul, highs reach just 37°F (3°C), and nighttime lows fall to around 21°F (-6°C). The air is crisp and still, with snow starting to settle in parks and along the Han River.

Central inland cities like Daejeon and Cheongju feel similar, with daytime highs between 37°F and 40°F (3°C and 4°C) and lows dipping to 23°F (-5°C). It’s cold but clear, which makes it ideal for city walks and winter photos.

Southern areas, including Busan and Yeosu, stay milder, with highs around 48°F (9°C) and lows close to 34°F (1°C). Jeju Island ranges between 36°F and 50°F (2°C to 10°C) but can be windy and damp.

Mountain regions stay well below freezing, offering perfect snow conditions for winter sports. Altogether, South Korea in December brings peaceful, frosty beauty across the country and a slower, more atmospheric way to explore.

What about the crowds and cost?

December is generally a quiet month for travel in South Korea. Tourist numbers drop in most cities, and you’ll find good deals on flights and accommodations. Museums, palaces and urban attractions are easy to explore without the usual foot traffic — something worth noting if you're planning a trip to South Korea during the colder months.

The exception is ski resorts. As snow starts falling, Gangwon-do and other mountain regions begin to fill with skiers and snowboarders. Prices around those areas creep up toward the vacations, especially during Christmas and New Year.

If you plan to hit the slopes, book early. If not, take advantage of the calm, clear days and great value on city stays. The weather in South Korea in December is ideal for anyone who prefers crisp air, fewer crowds and the sparkle of winter lights.

Things to do in South Korea in December

With cold weather, festive energy and scenic snowfall, December is full of seasonal charm. It’s a great time to bundle up and enjoy wintry adventures, cozy traditions and peaceful moments — especially in some of the best places to visit in South Korea that truly shine in winter.

Hit the slopes in Gangwon-do

Resorts such as Yongpyong, Alpensia, and High1 open their slopes in December, bringing ski season into full swing. Whether you’re an experienced skier or just want to try sledging, the mountain resorts offer a fun way to lean into winter. For 9-day South Korea trips, a ski stop can add a seasonal contrast to city sightseeing, temples, and coastal routes, especially if you want part of the journey to feel more active.

Warm up at a jjimjilbang

Korean bathhouses are a winter essential. Soak in a hot pool, relax in the sauna and enjoy traditional snacks in your robe. Spa Land in Busan and Dragon Hill in Seoul are top picks — and definitely among the coziest things to do in South Korea when the temperatures drop.

Explore Christmas markets and vacation lights

Head to places like Myeongdong and Itaewon for vacation markets filled with mulled wine, snacks and handmade gifts. Night strolls under twinkling lights are a December highlight and a festive way to experience Christmas in South Korea.

Try winter street food

This is the month for roasted sweet potatoes, hotteok (filled pancakes), fish cake soup and spicy tteokbokki (spicy rice cakes). Street vendors pop up across cities, offering warm bites and festive smells — a delicious way to dive into South Korean food during winter.

Visit a temple in the snow

Temples like Bulguksa or Magoksa take on a serene beauty in winter. A light dusting of snow, quiet pathways and the smell of pine make these sacred spots even more peaceful.

Festivals and events in South Korea in December

December brings a slower pace, but there are still a few key events that fill the season with color, flavor and festive fun.

• Yard of Morning Calm Lighting Festival: This winter light show turns one of Korea’s most beautiful yards into a glowing wonderland. Expect themed displays, soft music and peaceful paths lined with colorful lanterns.
• Christmas markets in Seoul: From European-style chalets in Itaewon to local stalls in Myeongdong, Seoul’s Christmas markets serve up festive snacks, gifts and live performances throughout December.
• Pyeongchang Trout Festival: This alpine event begins in late December. Try ice fishing, tubing and grilled trout in a snowy mountain setting that’s fun for all ages.
• New Year’s sunrise gatherings: On the final morning of the year, people head to coastal spots like Homigot and Jeongdongjin to watch the first sunrise of the new year. It’s a calm and hopeful tradition to end the year with intention.