Seoul Weather in December
3.9°C high · -4.1°C low · 26 mm rain · 3.1h sun
Dec is a cool month in Seoul — not peak season, but a good time to avoid crowds.
December at a glance
| Metric | Value |
|---|---|
| Average high | 3.9°C |
| Average low | -4.1°C |
| Rainfall | 26 mm |
| Sunshine | 3.1 hours/day |
| Daylight | 9.4 hours |
What to pack in December
Pack a warm coat and layers for Seoul in December.
Seoul weather by month
JanFebMarAprMayJunJulAugSepOctNovDec
Frequently asked questions
What is the weather in Seoul in December?
Highs of 3.9°C and lows of -4.1°C, with about 26 mm of rain and 3.1 hours of sunshine per day.
Is December a good time to visit Seoul?
Dec is a cool month in Seoul — not peak season, but a good time to avoid crowds.
What to do in Seoul · Best time to visit Seoul
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.