Weather in Sejong in December
Sejong, South Korea averages a high of 4.8°C (40.6°F) and low of -3.3°C (26.1°F) in December, with 4 rain days and 7.5 hours of daily sunshine. Travel score: 61/100 (Good). The best time to visit Sejong is May.
High
5°C41°F
Low
-3°C26°F
🌧️
4
rain days
☀️
7.5
hrs/day sunshine
💧
67%
humidity
61— Good
December in Sejong is cold and mostly dry — bundle up and enjoy the cool weather.
What are the average temperatures in Sejong?
How much does it rain in Sejong in December?
Sejong receives an average of 21.6mm of rainfall across 4 rainy days in December. The annual total is 1112.1mm.
What should I pack for Sejong in December?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Heavy winter coat
Cold weather with highs around 5°C
🩳
Thermal base layers
Stay warm in freezing temperatures
🧤
Warm gloves
Cold nights around -3°C
🧣
Warm scarf
Protect against cold winds
🎉Visiting South Korea in December?
Don't miss any public holidays — check before you book!
Compare Sejong
Popular comparisons:
How can I plan my trip to Sejong?
What other cities are near Sejong?
What are other popular cities in South Korea?
What is the weather like in other months in Sejong?
Data based on 1994–2024 averages · Last updated: 2024-12-31