Best Time to Visit Korea 2026-2027: Month-by-Month Weather, Seasons & When to Go Korea has four very distinct seasons, so when you go shapes your whole trip — cherry blossoms in spring, a rainy monsoon in midsummer, fiery foliage in autumn, and snow-and-ski weather in winter. This month-by-month guide uses official Seoul climate data to help you pick the best time to visit Korea in 2026–2027, balancing weather, crowds, cost and what's actually happening each month. Short answer: Spring (April–May) and autumn (late September–November) are the best all-round times — mild, dry and beautiful. Summer is hot, humid and rainy but lively; winter is cold but the cheapest and least crowded, great for snow, skiing and festivals. Korea's four seasons at a glance Season Months Weather Crowds & cost Spring Mar–May Mild, dry; cherry bloss...