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When to go · Seongnam

Seongnam in January

Good month. Outside the best window (Mar–May, Sep–Nov). Across South Korea: Cold and dry, low prices; ski in Gangwon; Seollal can fall late in the month — check.

Key facts

Verdict
Good
Temperature
2°C (36°F) / −6°C (21°F)
average high / low
Rain days
6
Crowds
Low
South Korea overall
Prices
Low
South Korea overall

Verdict

GoodSouth Korea month rating

Outside the best window (Mar–May, Sep–Nov). Across South Korea: Cold and dry, low prices; ski in Gangwon; Seollal can fall late in the month — check.

Is another month better than January?

January is rated good. These months rate higher:

Weather in January

Long-term averages
  • SeongnamHighs around 2 °C (36 °F), lows around -6 °C (21 °F), rain on about 6 days

Festivals and holidays

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

  • Seollal (Lunar New Year) big impact

    About 5–8 Feb 2027 (lunar; incl. substitute day — check) · South Korea

    Three-plus days off: many restaurants and shops close, trains and buses sold out, palaces open (often free), Seoul quiet.

Crowds and prices

Crowds · South Korea overall
Low
Prices · South Korea overall
Low

South Korea overall: Cold and dry, low prices; ski in Gangwon; Seollal can fall late in the month — check.

Compare two months

Weather, crowds and prices for any two months in Seongnam, side by side.

  • Verdict

    Jan: Good

    Mar: Great (better)

  • Daytime high

    Jan: 2 °C (36 °F)

    Mar: 11 °C (52 °F)

  • Night low

    Jan: -6 °C (21 °F)

    Mar: 2 °C (36 °F)

  • Rain days

    Jan: 6

    Mar: 6

  • Crowds

    Jan: Low

    Mar: Medium

  • Prices

    Jan: Low

    Mar: Medium

  • Festivals listed

    Jan: 1

    Mar: 0

January: Outside the best window (Mar–May, Sep–Nov). Across South Korea: Cold and dry, low prices; ski in Gangwon; Seollal can fall late in the month — check.

March: Inside Seongnam's best window: Mar–May, Sep–Nov.

Seongnam: figures are long-term averages from this guide, not a forecast.

What to pack

  • A warm coat, hat and gloves for mornings and evenings

Build the full packing list for your trip →

Across South Korea in January →