Transit Desk

Climate

Weather in South Korea in December

Weather in South Korea, December
In December, South Korea sees average highs of 2.8°C (37°F) and lows of -5.6°C (22°F), with around 30 mm of rain.

South Korea — December

South Korea December
Daytime high
2.8°C (37°F)
Overnight low
-5.6°C (22°F)
Rainfall
30 mm
Best-time rank
Off-peak

How December compares

South Korea, December vs. the annual average (2025)
This month2.8°C (37°F) / -5.6°C (22°F) · 30 mm
Yearly average17.1°C (63°F) / 8.2°C (47°F) · 122 mm

December in South Korea runs 14.3°C (25.7°F) cooler than the yearly average, and is drier than the yearly average. Pack winter clothing — it will be cold.

Common questions

What is the weather like in South Korea in December?

Average highs of 2.8°C (37°F) and lows of -5.6°C (22°F), with around 30 mm of rain.

Is December a good time to visit South Korea?

It is an off-peak month for comfort in South Korea; May, June, September tend to be more pleasant.

Updated climate normals, 2025