When to go · Seosan
Seosan in December
Good month. Outside the best window (Apr–May, Sep–Oct). Across South Korea: Cold and dry; Christmas markets and lights in Seoul; ski season opens.
Key facts
- Verdict
- Good
- Temperature
- 6°C (42°F)42°F (6°C) / −4°C (25°F)25°F (−4°C)
- average high / low
- Rain days
- 8
- Crowds
- Medium
- South Korea overall
- Prices
- Medium
- South Korea overall
Verdict
Outside the best window (Apr–May, Sep–Oct). Across South Korea: Cold and dry; Christmas markets and lights in Seoul; ski season opens.
Is another month better than December?
December is rated good. These months rate higher:
Weather in December
- SeosanHighs around 5.7 °C (42 °F), lows around -3.7 °C (25 °F), rain on about 8 daysHighs around 42 °F (5.7 °C), lows around 25 °F (-3.7 °C), rain on about 8 days
Crowds and prices
- Crowds · South Korea overall
- Medium
- Prices · South Korea overall
- Medium
South Korea overall: Cold and dry; Christmas markets and lights in Seoul; ski season opens.
Compare two months
Weather, crowds and prices for any two months in Seosan, side by side.
Verdict
Dec: Good
Apr: Great (better)
Daytime high
Dec: 5.7 °C (42 °F)42 °F (5.7 °C)
Apr: 17.3 °C (63 °F)63 °F (17.3 °C)
Night low
Dec: -3.7 °C (25 °F)25 °F (-3.7 °C)
Apr: 5 °C (41 °F)41 °F (5 °C)
Rain days
Dec: 8
Apr: 8
Crowds
Dec: Medium
Apr: High
Prices
Dec: Medium
Apr: High
Festivals listed
Dec: 0
Apr: 0
December: Outside the best window (Apr–May, Sep–Oct). Across South Korea: Cold and dry; Christmas markets and lights in Seoul; ski season opens.
April: Inside Seosan's best window: Apr–May, Sep–Oct.
Seosan: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings