Seoul Weather in December: Temperature, Rainfall & What to Pack

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📒 Seoul Climate & Weather Overview

Located in the northwestern part of South Korea, Seoul's geography gives it a temperate climate with four very distinct seasons—a dramatic and exciting contrast for anyone accustomed to year-round tropical weather. 

The city experiences the full spectrum of weather, from hot, humid summers to crisp, colourful autumns and, most notably, cold, dry winters influenced by Siberian air masses. For travellers from Singapore, the weather in Seoul by season offers a completely different sensory experience.

Understanding the Seoul climate is key to planning a comfortable trip. The shift from the sticky humidity of summer to the biting, dry cold of winter can be a shock to the system. The average temperatures in Seoul fluctuate significantly throughout the year, meaning a trip in May feels entirely different from one in December.

Current & Next 7 Days Temperature in Seoul

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Today
6 Dec, 2025
0
Intermittent clouds
0 ~ 5℃
6 Dec, 2025
Intermittent clouds
0℃ / 5℃
7 Dec, 2025
Intermittent clouds
-1℃ / 14℃
8 Dec, 2025
Clear
-5℃ / 6℃
9 Dec, 2025
Clear
-1℃ / 7℃
10 Dec, 2025
Intermittent clouds
2℃ / 10℃
11 Dec, 2025
Mostly clear
-1℃ / 11℃
Seoul Weather - Best Times to Visit Seoul
6 Dec, 2025 SeoulWeather:Intermittent clouds.Northeasterly wind:0–10 km/hour.Humidity:63%.Sunrise/Sunset:07:32/17:14
SeoulDriving:Suitable.Running:Suitable.Cycling:Suitable
Seoul has a humid continental climate which means four distinct seasons. The months in Spring (March to May) and Fall (September to November) are great times to explore Seoul due to the mild weather during these periods. In addition, March to May is when the Cherry Blossoms are in full bloom. If you don’t mind the cold, Seoul can be a winter wonderland as many visitors come just to experience the snow. Summer (June to August) is hot, humid, and full of tourists. Also, the months of May to September see a lot of rain (rainy season), with July being the wettest month.Seoul is a year-round destination as each of its seasons caters to visitors’ different needs. Spring is considered the Should Season even though it is the most beautiful period with pleasant weather. While the crowds aren't as thick as the summer season, Seoul's many springtime visitors can limit your lodging options. Winter months are chilly with January being the coldest as temperatures often dropping below -10 °C (14 °F). Even with tourists coming to enjoy the skiing facilities and the snow, hotels prices and airfare do drop dramatically. But remember to avoid the Lunar New Year period, as you’ll encounter extreme crowds and price hikes.
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Seasons in Seoul

  • Spring (March to May): A beautiful season when the city thaws and cherry blossoms appear. Temperatures are mild and pleasant, making it one of the most popular times to visit.
  • Summer (June to August): This season will feel familiar to Singaporeans, as it's hot and humid, with a heavy monsoon period typically in July. Prepare for rain and sticky days.
  • Autumn (September to November): Widely considered the best time to visit Seoul, autumn brings cool, crisp air, clear blue skies, and stunning autumn foliage.
  • Winter (December to February): The city transforms into a winter wonderland. It is cold, dry, and often snowy, offering a magical experience for those seeking a true winter holiday.

December in Seoul swaps autumn’s crisp air for winter’s sparkling lights, spicy street snacks, and festive shopping—check the Best Time to Visit Seoul for up-to-date weather, seasonal events, and festival calendars to plan the perfect winter getaway.

🌟 Seoul Weather in December: Cold, Dry, and Festive

For Singaporeans dreaming of a proper winter escape, Seoul in December is an excellent choice. This is the start of true winter, a world away from the tropical heat. The air is cold and dry, and while the thought of sub-zero temperatures might be intimidating, the lack of humidity makes it a different kind of cold—crisp and sharp rather than damp and chilling.

The Seoul weather in December is ideal for travellers who want to experience snow, festive Christmas lights, and the joy of bundling up in warm layers. It’s a time for cosy cafe-hopping, enjoying hot street food like hotteok (sweet pancakes), and seeing the city’s palaces dusted in a light layer of snow. 

Category

Details

Season in December

Early Winter

Temperature Range

-6°C to 4°C / 21°F to 39°F

Rainfall

Low precipitation (average 22mm/month), with an increasing chance of snowfall as the month progresses.

Humidity

Low (around 60%), which can make the air feel very dry.

Daylight Hours

Approximately 9.5 hours of daylight.

Best Things to Do

Ice skating, visiting Christmas markets, exploring festively lit areas like Myeongdong and Gangnam.

Festivals & Events

City-wide Christmas illuminations and New Year's Eve celebrations.

Use the Seoul Food Guide to savour winter comfort foods: tuck into piping hot tteokbokki, comforting kimchi jjigae, and bakery treats that warm up cold hands between sightseeing stops.

🧳 What to Pack for a Trip to Seoul in December

Packing for a Seoul winter when you're used to tropical weather can seem daunting, but the key is layering. You'll be moving between the freezing outdoors and well-heated indoor spaces like malls and subways.

Clothing Essentials:

  • Thermal Base Layers: Long-sleeved thermal tops and leggings are non-negotiable. They trap body heat without adding bulk.
  • Mid-Layers: Pack fleece jackets, wool jumpers, or hoodies to wear over your base layer.
  • Outer Layer: A thick, insulated, and windproof/waterproof winter coat is essential. A long padded coat (known as a 'long padding' in Korea) is a popular and practical choice.
  • Trousers: Lined trousers or simply wearing your thermal leggings under a pair of jeans will keep you warm.
  • Footwear: Insulated, waterproof boots with good grip are crucial for walking on potentially icy or snowy streets.

Weather Gear:

  • Winter Accessories: A warm beanie, a thick scarf or neck gaiter, and insulated gloves are must-haves to protect against the biting wind.
  • Warm Socks: Pack thick wool or thermal socks to keep your feet warm and dry.
  • Lip Balm & Moisturiser: The cold, dry air is harsh on the skin. Bring intensive moisturiser and lip balm to prevent chapped skin and lips.

Travel Accessories:

  • Hand Warmers: These small, disposable heat packs are a lifesaver. They can be bought cheaply at any convenience store in Seoul.
  • Power Bank: Cold weather drains phone batteries much faster, so a portable charger is essential.
  • Reusable Water Bottle: It's easy to get dehydrated in the dry winter air, so remember to drink water.

Pro Packing Tips:

  • Don't overpack heavy jumpers. The secret is multiple thin layers that you can easily remove indoors.
  • If you're on a budget, consider buying trendy and affordable winter coats and accessories at Seoul's underground shopping malls.
  • Sunglasses are surprisingly useful when it snows, as the low winter sun can be bright, especially when reflecting off snow.

Travelling light? Check out our guide on carry-on baggage restrictions to know what you can or can not bring on board!

😀Pro tip: Looking to explore Seoul without overspending? There are many cheap hotels in Seoul that offer excellent value. These affordable hotels provide a great mix of comfort, convenience, and easy access to top attractions, all while keeping your budget intact.

✈️ Planning Your December Trip to Seoul

December in Seoul offers a magical winter experience, with a festive atmosphere and the exciting possibility of snow. While the Seoul temperature is cold, the dry air and excellent indoor heating make it manageable and enjoyable with the right preparation. For those seeking milder weather, spring and autumn are often considered the best time to visit Seoul.

Must-Know Tips

  • Weather Preparedness: Check the daily forecast, especially for snowfall. Plan a mix of outdoor sights and cosy indoor activities like visiting museums, grand cafes, or exploring the vast COEX Starfield Library.
  • Safety Considerations: Pavements can become icy and slippery, especially in the mornings and evenings. Walk carefully and wear shoes with good traction.
  • Practical Planning: December is a popular travel month due to the holidays. It's wise to book accommodations early to secure the best hotels in Seoul. Travel insurance is also recommended for any potential weather-related disruptions.
  • Transportation: The Seoul Metro is efficient, heated, and the best way to get around the city while staying warm.

Map your stay with Where to Stay in Seoul for the best areas—from Myeongdong for shopping sprees to Insadong for cultural walks—and line up Things to Do in Seoul for cool-weather market browsing, skating rinks, palace illumination tours, and holiday pop-ups.

Plot your route fast with Where to Go in Seoul for the city’s must-see neighborhoods and then plug in a ready-made Itinerary for Seoul for smooth, December-friendly planning.

Beyond Seoul, don’t forget to check out our weekly updated deals and promo codes for regional and global destinations—grab the best offers before they’re gone!

FAQ: Visiting Seoul in December

  • How cold is Seoul in December?

    Daytime highs average around 3–4°C and nights drop to about −6°C, with dry, sunny spells and occasional light snow.
  • Does it snow in Seoul in December?

    Snow is possible, especially later in the month, but tends to be light and short-lived in the city.
  • Are attractions and shops open over Christmas?

    Most attractions, shops, and transit operate normally, though individual venues may have special hours—check listings before you go.
  • Are there public holidays in South Korea in December?

    Yes—Christmas Day on 25 December is a national public holiday in South Korea, and most attractions, shops, and transit continue operating with only some venues adjusting hours.
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Seoul Weather in December