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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Regional Report weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Seoul experiences a humid continental climate with four distinct seasons, from freezing winters to hot, humid summers. The live forecast above gives the current conditions, but the city’s weather varies dramatically throughout the year — January averages −2°C while August pushes 26°C.
What is the typical weather pattern in Seoul?
Seoul sits at 37.5°N, giving it cold, dry winters and warm, wet summers influenced by the East Asian monsoon. If you’re checking seoul weather by month, expect January as the coldest (lows around −6°C) and August the hottest (highs near 30°C). July brings the monsoon with heavy rainfall, while autumn (September–November) offers mild, clear days. The weather in seoul 10 days outlook can shift quickly during the transitional seasons of spring and autumn, so it’s worth refreshing the forecast above before making plans. For those interested in seoul weather december, the month is cold and dry, with average highs around 4°C and crisp, sunny spells — ideal for exploring the city’s winter markets.
How do seasons affect a visit to Seoul?
For longer-term planning, the seoul weather forecast 30 days can give a broad trend, though accuracy naturally drops beyond two weeks. The seoul weather forecast 14 days and seoul weather forecast 15 days outlooks are more reliable for trip planning — spring (April–May) and autumn are widely considered the best times to visit. Temperatures are measured in seoul weather celsius, so a winter visit requires a heavy coat, while summer needs light clothing and an umbrella. Many locals check seoul weather naver for hourly updates, but the live forecast above provides all the essentials.
Does Seoul have a monsoon season?
Yes, the summer monsoon (called “jangma”) arrives in late June and lasts through July. This period brings heavy, persistent rain and high humidity, with about half of Seoul’s annual rainfall falling in these two months.
How cold does Seoul get in winter?
Winter (December–February) sees average daytime highs around 2–4°C and night-time lows dropping to −6°C or below. Cold Siberian winds can make it feel colder, though snowfall is moderate compared to eastern parts of South Korea.
Is Seoul humid in summer?
Very humid. July and August often see humidity levels above 80%, combined with temperatures around 28–30°C. The heat index can make it feel several degrees warmer, which is why many locals head to the mountains or the coast in August.
Sources
Compare Seoul’s climate with conditions back home on the UK weather hub, or see how it differs from a city like Birmingham Weather. For longer-range planning, the 10 Day Weather Forecast UK page explains how forecast confidence changes over time — the same principles apply to Seoul.