Sejong in December
5.5out of 10
Possible, with caveats
Cold: highs around 5°C. Some rain: about 5 rainy days.
5°CAvg high
-3°CAvg low
5Rainy days (24 mm)
9:31 hDaylight
07:42Sunrise · 17:12 Sunset
Why this score
- Cold: highs around 5°C
- Some rain: about 5 rainy days
- Nights fall to about -3°C
What to wear and pack
- Winter coat, hat and scarf
- Gloves for freezing mornings
How reliable is the forecast?
Rainfall in December is fairly consistent from year to year (2.3 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 3°C | -5°C | 22 mm | 4 | – | – | 5.0 |
| February | 6°C | -3°C | 31 mm | 5 | – | – | 5.6 |
| March | 12°C | 1°C | 48 mm | 6 | – | – | 6.5 |
| April | 19°C | 7°C | 79 mm | 7 | – | – | 7.7 |
| May | 24°C | 13°C | 85 mm | 8 | – | – | 8.0 |
| June | 28°C | 18°C | 128 mm | 9 | – | – | 7.7 |
| July | 29°C | 22°C | 253 mm | 16 | – | – | 6.0 |
| August | 30°C | 22°C | 224 mm | 16 | – | – | 6.1 |
| September | 26°C | 17°C | 143 mm | 9 | – | – | 7.7 |
| October | 21°C | 10°C | 57 mm | 5 | – | – | 8.2 |
| November | 13°C | 3°C | 42 mm | 6 | – | – | 6.8 |
| December | 5°C | -3°C | 24 mm | 5 | – | – | 5.5 |
Frequently asked questions
How hot is Sejong in December?
Daytime highs average 5°C and nights about -3°C.
When is the best time to visit Sejong?
The best months are October, May, April, June.