Busan Weather in January: What to Expect
In January, Busan averages highs of 6.5°C and lows of -2.5°C, with about 4 rainy days (~41 mm). Verdict: Cool — bring layers — cooler 6.5°C days. That makes it the 2nd hottest of South Korea's 6 main cities this month.
January in Busan brings crisp, cold air, with daytime temperatures feeling chilly, especially with the coastal breeze. Nights are significantly colder, well below freezing. With only around four rainy days, you'll likely encounter dry conditions. This is South Korea's second-warmest major city this month, but don't mistake that for warmth; layer up. The best time to explore sights like the Gaya Tumuli or Busan Al-Fatah Mosque is definitely midday when temperatures are at their highest. Pack thermal underwear for comfortable outdoor excursions.
Busan vs other South Korea cities in January
South Korea is not one climate. In January, Jeju runs to 7.7°C while Incheon sits at 2°C — a 6°C spread. Here is where Busan falls:
What to pack for Busan in January
With highs near 6.5°C and lows around -2.5°C, pack warm layers, a proper jacket, and closed shoes, a warm fleece or down layer for cold nights.
Busan is on the coast — add swimwear; the water can feel cool for swimming this month.
What to do in Busan in January
January's weather suits sightseeing through the day. Top sights:
Public holidays in South Korea, January
- 2026-01-01 — New Year's Day
- 2027-01-01 — New Year's Day
Busan in January — FAQs
What is the weather like in Busan in January?
In January, Busan averages daytime highs of 6.5°C and overnight lows around -2.5°C, with roughly 4 rainy days and about 41 mm of rain across the month. Cool — bring layers — cooler 6.5°C days.
Is January a good time to visit Busan?
Cool — bring layers. January is comfortable enough for full-day sightseeing in Busan. Among South Korea's cities, Busan is the 2nd hottest this month.
What should I pack for Busan in January?
For January (-2.5–6.5°C), pack warm layers, a proper jacket, and closed shoes, a warm fleece or down layer for cold nights.
What is there to do in Busan in January?
Busan's main sights include Busan, Gaya Tumuli, Busan Al-Fatah Mosque. The weather suits visiting these comfortably through the day.
Are there public holidays in South Korea in January?
Yes — New Year's Day (2026-01-01), New Year's Day (2027-01-01). Sites can be busier or closed around these dates.
Busan weather by month: