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Seoul weather in December: what to wear and pack

December is one of the drier months (3rd driest) in Seoul. On average it rains on 4 of 31 days, with highs of 4°C (40°F) and lows of -4°C (26°F).

Trip rating: Good (59/100) · Best months: May and September–October

4°C (40°F)High

-4°C (26°F)Low

4Rainy days

23 mmRainfall

55%Humidity

Rainy day = 1 mm or more of rain. Of these, about 1 days get 10 mm or more. Average of the last 30 years.

What to wear in Seoul in December

A heavy down jacket, gloves, a hat and a scarf.

Hand warmers, gloves and a hat — nights fall to -4°C (26°F)
Non-slip shoes — below freezing on many nights
Plug adapter (if needed) — Korea uses 220V with Type C/F round two-pin sockets

Rain is similar to November.

Pick your arrival and departure dates. We look up the same dates over the last 30 years.

Time zone	Korea Standard Time (UTC+9), no daylight saving
Power	220V, 60Hz, Type C/F (round two-pin) sockets
Money	Korean won (KRW). Cards are accepted almost everywhere
Entry	Visa and K-ETA rules change — check the official K-ETA site and your government's travel advice

Observed at Korea Meteorological Administration (KMA) station 108, 1996–2025 daily records. How we calculate