Incheon Weather in December: What to Expect
In December, Incheon averages highs of 3.7°C and lows of -3.9°C, with about 6 rainy days (~27 mm). Verdict: Cold — pack heavy — daytime highs average just 3.7°C. That makes it the 5th hottest of South Korea's 6 main cities this month.
Incheon vs other South Korea cities in December
South Korea is not one climate. In December, Jeju runs to 9.8°C while Seoul sits at 3.2°C — a 7°C spread. Here is where Incheon falls:
What to pack for Incheon in December
With highs near 3.7°C and lows around -3.9°C, pack warm layers, a proper jacket, and closed shoes, a warm fleece or down layer for cold nights.
Incheon is on the coast — add swimwear; the water can feel cool for swimming this month.
What to do in Incheon in December
December's weather suits sightseeing through the day. Top sights:
Public holidays in South Korea, December
- 2026-12-25 — Christmas Day
- 2027-12-25 — Christmas Day
Incheon in December — FAQs
What is the weather like in Incheon in December?
In December, Incheon averages daytime highs of 3.7°C and overnight lows around -3.9°C, with roughly 6 rainy days and about 27 mm of rain across the month. Cold — pack heavy — daytime highs average just 3.7°C.
Is December a good time to visit Incheon?
Cold — pack heavy. December is comfortable enough for full-day sightseeing in Incheon. Among South Korea's cities, Incheon is the 5th hottest this month.
What should I pack for Incheon in December?
For December (-3.9–3.7°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 Incheon in December?
Incheon's main sights include Taeanhaean National Park, Gwangmyeong Cave. The weather suits visiting these comfortably through the day.
Are there public holidays in South Korea in December?
Yes — Christmas Day (2026-12-25), Christmas Day (2027-12-25). Sites can be busier or closed around these dates.
Incheon weather by month: