Busan vs Seoul

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Busan edges ahead as the better destination in January. Busan offers 8 hours of daily sunshine with only 4 rain days, while Seoul sees 7 sunshine hours and 4 rain days.

Busan is on the cooler side at 6°C, requiring warmer clothing. Seoul is cooler at 1°C.

For travelers who prioritize dry weather, both cities are equally dry in January. Busan receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Busan reaches an average high of 6°C (43°F) and drops to 0°C (32°F) at night during January. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.

Seoul averages 1°C (34°F) for the high and -7°C (19°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 January.

Busan receives approximately 32 mm of rainfall across 4 rain days during January. Rain is occasional, so a light rain jacket should suffice.

Seoul sees 19 mm over 4 rain days. Both cities are equally rainy this month.

Both cities share similar humidity levels at 65%.