Seoul Weather by Month
Seoul has four distinct seasons, a summer monsoon, hot and humid July–August weather, and cold winters with occasional snow.

January can bring cold conditions, snow or icy surfaces. Warm layers and weather-resistant footwear are useful.
February weatherWinter · Cold wave riskFebruary can bring cold conditions, snow or icy surfaces. Warm layers and weather-resistant footwear are useful.
March weatherEarly springMarch typically falls in a early spring pattern. Compare temperature, rainfall and recent-year weather below before choosing your dates.
April weatherSpringApril typically falls in a spring pattern. Compare temperature, rainfall and recent-year weather below before choosing your dates.
May weatherLate springMay typically falls in a late spring pattern. Compare temperature, rainfall and recent-year weather below before choosing your dates.
June weatherEarly summer · Rainy season beginsJune is a wetter period. Keep a rain-friendly backup plan and compare rainfall and rainy-day averages below.
July weatherRainy season · Heat wave riskJuly can bring intense daytime heat. Plan shade, hydration and indoor breaks, especially around midday.
August weatherMidsummer · Heat wave riskAugust can bring intense daytime heat. Plan shade, hydration and indoor breaks, especially around midday.
September weatherEarly autumn · Typhoon riskSeptember can be affected by typhoons. Recheck forecasts, flights, ferries and outdoor plans shortly before departure.
October weatherAutumnOctober typically falls in a autumn pattern. Compare temperature, rainfall and recent-year weather below before choosing your dates.
November weatherLate autumnNovember typically falls in a late autumn pattern. Compare temperature, rainfall and recent-year weather below before choosing your dates.
December weatherWinter · Cold wave riskDecember can bring cold conditions, snow or icy surfaces. Warm layers and weather-resistant footwear are useful.