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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the PressHive weather desk. Data from national met services via Open-Meteo.
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If you are heading to the Korean capital, expect a chilly and dry winter day – the live forecast above shows current conditions across the city, so layer up and keep an eye on the afternoon wind chill.
What is the weather typically like in Seoul this month?
December in Seoul brings crisp, cold air with average highs around 3–5°C and overnight lows often dropping below freezing. The city sees only about 20 mm of rainfall for the whole month, mostly as light snow, and strong north-westerly winds can make the actual feel noticeably colder. For a fuller picture, many locals rely on seoul weather naver for hourly updates, and travellers often check weather in seoul 10 days ahead to plan their sightseeing.
Should I check a longer-range forecast before my trip?
A seoul weather forecast 14 days or even a seoul weather forecast 15 days outlook can give you a useful trend, but accuracy drops beyond a week. The seoul weather forecast 30 days product is more of a climate guide than a dependable daily prediction. For decisions on packing and outdoor plans, the seoul weather by month averages remain the most reliable foundation.
Does Seoul use Celsius or Fahrenheit for its weather reports?
South Korea officially uses Celsius for all weather reporting. The live forecast above and all local apps – including seoul weather naver and government sites – display seoul weather celsius values, so visitors from the US may want a quick converter handy.
How reliable are 10‑day and 14‑day forecasts for Seoul?
A weather in seoul 10 days forecast is generally dependable for temperature trends and rain/snow probability. The seoul weather forecast 14 days is less precise beyond day seven but still helpful for spotting major pattern changes. For exact packing, check the forecast again 48 hours before departure.
Does Seoul ever get extreme winter weather?
Seoul’s winter is cold but not extreme by international standards. Temperatures rarely fall below −15°C, though wind chill can push the perceived temperature lower. Heavy snowfalls of more than 10 cm happen only a few times each winter and can briefly disrupt transport – worth watching the live forecast above for warnings.
Sources
For a direct comparison with conditions back home, see the UK weather hub or check how Glasgow Weather is shaping up today. You can also browse 10 Day Weather Forecast UK for longer-range trends across Britain.