Seoul · WinterMonth summary
Seoul weather in December
⚠️ Fair
🌡️ Temperature min / max
-5°C – 3°C
🌧 Rainy days
15% of days
☀️ Sunshine
8.4h per day on average
🌊 🌊 Season
Winter
⭐ ⭐ Weather score
4.8/10
📅 📅 Best month
June (8.1/10)
Quick decision
Should you visit Seoul in December?
⚠️ Fair
✅ Yes if: you enjoy winter atmosphere and the lowest prices of the year.
❌ No if: you're looking for sunshine or outdoor activities.
Our take: December is a difficult time for Seoul. June (8.1/10) is much more favourable.
By trip type
Seoul in December by trip type
- 🏙️ 🏙️ City break / culture : ⚠️ Possible
- 🚶 🚶 Outdoor activities : ❌ Not recommended
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in December
🎯 Low season — 3°C and limited conditions. Upside: lower prices and few tourists Winter in Seoul is cool (3°C during the day). Days are short (8.4h of sunshine) but the city reveals a different side. Rain risk remains low (15% of days), leaving good room for outdoor activities.
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Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌨️ January | -6°C | 2°C | 10% | 0.6 | 8.7h | 5.1/10 |
| 🌫️ February | -5°C | 5°C | 16% | 0.9 | 9.5h | 5.0/10 |
| ⛅ March | 0°C | 12°C | 20% | 1.4 | 10.1h | 7.0/10 |
| 🌤️ April | 6°C | 18°C | 22% | 2.1 | 11.0h | 7.3/10 |
| 🌤️ May | 12°C | 23°C | 27% | 3.6 | 11.9h | 8.0/10 |
| 🌤️ June | 18°C | 27°C | 34% | 4.2 | 11.1h | 8.1/10 |
| ⛅ July | 22°C | 29°C | 56% | 10.1 | 9.9h | 7.3/10 |
| 🌤️ August | 23°C | 30°C | 52% | 8.9 | 10.9h | 7.4/10 |
| 🌤️ September | 18°C | 25°C | 31% | 5.3 | 10.0h | 7.8/10 |
| 🌤️ October | 9°C | 18°C | 23% | 2.7 | 9.2h | 7.2/10 |
| ⛅ November | 2°C | 12°C | 20% | 1.7 | 8.8h | 6.4/10 |
| 🌨️ December | -5°C | 3°C | 15% | 0.9 | 8.4h | 4.8/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In December, Seoul averages 3°C, 15% rainy days and 8.4h of sunshine per day. Overall weather score: 4.8/10.
See methodology →
Comparison
December vs June (best month)
The best month is June (score 8.1/10). Difference:
- 🌡️ Max temperature : +24°C
- 🌧 Rainy days : +19%
- ☀️ Sunshine : +2.7h/day
FAQ
FAQ — Seoul in December
Is December a good time to visit Seoul?
December is not recommended for Seoul (score 4.8/10). With 15% rainy days and 8.4h of sunshine, consider June (8.1/10) instead.
What's the weather like in Seoul in December?
It's cool with 3°C daytime and -5°C at night. 8.4h of sunshine per day. Pack warm clothes and favour indoor visits.
Accommodation
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Activities & tours
Activities and tours in Seoul
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