What to expect in Seoul in December
December is a quiet, off-peak month in Seoul: 3° / -6°, plenty of space at the main sights and some of the best deals of the year. Great if you value space over perfect conditions.
Seoul weather in December
Typical conditions in Seoul during December, based on long-run climate normals rather than any single year. Treat it as a planning guide, not a forecast.
| Average high | 3°C 37°F |
|---|---|
| Average low | -6°C 21°F |
| Rainfall | Dry 15/100 |
| How it feels | Cold |
Average highs sit around 3°C with lows near -6°C. It is one of the drier months — pack light.
Crowds & demand
Crowd levels are Low for Seoul — plenty of space at the main sights.
Prices & value
Prices run low season this month: some of the best deals of the year.
What to pack
Proper cold-weather kit — a warm mid-layer, windproof outer, hat and gloves. Days peak near 3°C and nights fall to about -6°C. Rain gear is largely optional this month, which keeps your bag light.
What it costs
This is one of the cheaper months to visit Seoul. Flights and accommodation sit near their yearly floor, and you can usually book late without being punished for it. Compared with the most expensive month of the year, you are looking at roughly 63% less.
Who this month suits
- Anyone travelling on a budget
- People who would rather have space than perfect conditions
Events & what’s on
No major festivals fall in December, so the destination feels like its everyday self.
Seoul in December compared with nearby months
If your dates are flexible by a few weeks, this is what shifting them actually buys you.
| Month | Temp | Crowds | Price | Score |
|---|---|---|---|---|
| October | 19° / 8° | High | $$$ | 48 |
| November | 11° / 1° | Moderate | $$ | 49 |
| December · This month | 3° / -6° | Low | $ | 55 |
| January | -1° / -8° | Low | $ | 53 |
| February | 2° / -5° | Low | $ | 57 |
These months score higher for Seoul on the same blend of weather, crowds and price. Same destination, better odds.
Or go somewhere else in December
If the destination is negotiable but the month is not, these places are at their best in December.
Figures are climate normals and modelled estimates — a planning guide, not a forecast. We separate fact, estimate and recommendation. Updated August 2026
