Seoul Weather in December
South Korea · 30-year monthly averages
🤔 Fair time to visit
December in Seoul is cold, with average daytime highs around 4°C (40°F) and nighttime lows near -3°C (26°F). Expect roughly 23mm of precipitation spread over about 4 rainy days, with little rainfall.
Avg high
4°C
40°F
Avg low
-3°C
26°F
Rainfall
23mm
dry
Rainy days
4
days with ≥1mm
☀️ About 163 hours of sunshine over the month (~5h/day).
🎒 What to pack
- warm coat
- sweaters and layers
- scarf
December vs the rest of the year
FAQ
- How hot is Seoul in December?
- December in Seoul is cold, with average daytime highs around 4°C (40°F) and nighttime lows near -3°C (26°F). Expect roughly 23mm of precipitation spread over about 4 rainy days, with little rainfall.
- Does it rain a lot in Seoul in December?
- Seoul sees around 23mm of precipitation in December on average — dry by global standards.
- Is December a good time to visit Seoul?
- December is a workable month to visit Seoul, but expect some weather trade-offs.