Weather Comparison
Side-by-side weather comparison for December
| Metric | Busan | Seoul | Better |
|---|---|---|---|
| Average HighHigher is warmer | 8°C (46°F)▲ | 3°C (37°F) | Busan |
| Average LowHigher is milder | 2°C (36°F)▲ | -5°C (23°F) | Busan |
| Rain DaysFewer is drier | 3 days▲ | 5 days | Busan |
| PrecipitationLess is drier | 28 mm | 23 mm▲ | Seoul |
| Sunshine HoursMore is sunnier | 8h/day | 8h/day | Tie |
| HumidityLower is more comfortable | 65% | 65% | Tie |
| UV IndexLower is safer | 2 | 1▲ | Seoul |
| Wind SpeedCalmer is better | 18 km/h | 15 km/h▲ | Seoul |
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Busan edges ahead as the better destination in December. Busan offers 8 hours of daily sunshine with only 3 rain days, while Seoul sees 8 sunshine hours and 5 rain days.
Busan is on the cooler side at 8°C, requiring warmer clothing. Seoul is cooler at 3°C.
For travelers who prioritize dry weather, Busan is the stronger choice in December.
Busan reaches an average high of 8°C (46°F) and drops to 2°C (36°F) at night during December. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.
Seoul averages 3°C (37°F) for the high and -5°C (23°F) for the low, with a daily range of 8°C. There is a notable 5°C gap between the two cities, so expect a very different feel.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in December.
Busan receives approximately 28 mm of rainfall across 3 rain days during December. Rain is occasional, so a light rain jacket should suffice.
Seoul sees 23 mm over 5 rain days. That makes Busan the drier option by 2 rain days and 5 mm of total precipitation.
Both cities share similar humidity levels at 65%.
Highs of 8°C, lows of 2°C, 3 rain days
Highs of 3°C, lows of -5°C, 5 rain days
Pack for both: heavy winter coat, thermal base layers, warm gloves and hat, insulated boots, a warm scarf. These items are useful in either destination during December.
The table below shows average high temperatures and rain days for every month. December is highlighted for quick reference.
| Month | Busan | Seoul | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 6°C | 4d | 1°C | 4d |
| Feb | 8°C | 5d | 4°C | 4d |
| Mar | 12°C | 8d | 10°C | 6d |
| Apr | 16°C | 8d | 17°C | 7d |
| May | 21°C | 8d | 22°C | 8d |
| Jun | 24°C | 10d | 26°C | 9d |
| Jul | 27°C | 14d | 28°C | 17d |
| Aug | 28°C | 14d | 29°C | 16d |
| Sep | 25°C | 10d | 25°C | 8d |
| Oct | 20°C | 5d | 19°C | 5d |
| Nov | 14°C | 5d | 11°C | 7d |
| Dec | 8°C | 3d | 3°C | 5d |
Busan Weather in December
Full forecast, packing tips, and activities
Seoul Weather in December
Full forecast, packing tips, and activities