What January feels like in Busan
January is the coldest stretch of winter in Busan. Daytime temperatures stay cold, and a warm coat is needed even in the middle of the day. Little changes after sunset — nights hover around freezing, so frost is common, only slightly below the daytime level. Humidity is moderate, so the air feels neither sticky nor dry.
Rain in Busan in January
Rain turns up now and then — about one day in 8. Wet days average about 7.4 mm (0.3 in), enough to soak you without an umbrella. That is lighter than the city's yearly norm of about 13.8 mm per rainy day. January is Busan's driest month of the year.
Daylight and sunshine in January
Mid-month, Busan gets 10 h 2 min of daylight, from sunrise near 7:32 am to sunset near 5:33 pm. Days are getting longer: 13 min more daylight than in mid-December. The sun is out for roughly 79% of those daylight hours, so there are plenty of bright spells.
How January compares to the rest of the year
January is the coolest month of the year in Busan. Compared with December, afternoons are 1.6°C (2.9°F) cooler, with 3 mm less rain. This is the low point, and February starts to warm up. By February, typical highs are 8.5°C (47.3°F).
Who January suits
- Sightseeing: less ideal — it is cold for long walks.
- Parks & outdoor: less ideal — too cool to sit outside for long.
- Beach: less ideal — the sea air is too cool.
Tips for visiting Busan in January
Warm Layers
A proper winter coat, with gloves and a hat for early starts.
Sunglasses
Frequent sunshine — sunglasses and a light hat.
Quick questions
How warm is Busan in January?
Expect around 6.5°C (43.7°F) in the afternoon and -1.3°C (29.7°F) at night, which most visitors would call cold.
Does it rain a lot in Busan in January?
Not especially. There are about 4 rainy days (29 mm), mostly moderate rain.
What should I wear in Busan in January?
Based on the averages: warm layers and sunglasses. There is little need to change for the evening.
Is January or February better for visiting Busan?
On our 12-month climate ranking, January comes out ahead (#10 of 12 vs #11). February is warmer and has more rainy days.