“When’s the best time to visit Korea?” is one of the questions I get asked the most, and the honest answer is: it depends what you’re optimizing for. Here’s how each season actually plays out.
Spring (March–May): Cherry Blossoms, But Crowded
Spring is mild, usually 10–20°C through April and May, with mostly clear skies. Cherry blossoms peak in Seoul in early April, and the palaces and hiking trails are genuinely beautiful this time of year. The catch: this is peak tourist season, hotel prices spike, and you’ll want to book 2–3 months ahead. March and early April can also bring yellow dust days, which affect air quality. If you want blossoms without the worst of the crowds, aim for the back half of April or very early May.
Summer (June–August): Hot, Humid, and Lively
Summer in Seoul means heat and humidity, with temperatures hitting 30–35°C in July and August, plus a monsoon season from late June into late July. On the upside, this is when festivals like the Boryeong Mud Festival happen, beach season kicks off in Jeju and Busan, and jjimjilbangs (Korean bathhouses) become a genuinely great way to cool off. Mid-July through mid-August is the busiest stretch thanks to school holidays, so expect crowds alongside the heat.
Autumn (September–November): The Best All-Around Pick
If I had to recommend one season, it’s this one. Humidity drops in September, temperatures sit in a comfortable 15–25°C range through October, and skies are consistently clear. Fall foliage peaks mid-to-late October (later if you head south or to Jeju), and this is some of the best weather Korea sees all year. One thing to plan around: Chuseok (Korea’s harvest holiday, falling in late September to early October in 2026) brings heavy domestic travel and closes a lot of shops, so check the dates before you book. Crowds also thin out noticeably by November.
Winter (December–February): Cold, Cheap, and Quiet
Winter is cold and dry — Seoul regularly dips below zero. But it’s also the cheapest season outside of the New Year period, and the palaces are genuinely stunning under snow with a fraction of the crowds. Ski season runs December through March if that’s your thing, and the Hwacheon Ice Festival is worth the trip if you’re up for something different. Seollal (Lunar New Year, in February 2026) disrupts travel and closes many businesses for a few days, so avoid that window specifically — outside of it, weekday mornings in January and February are about as quiet as Seoul gets.
My Honest Recommendation
If weather and crowds both matter to you, autumn wins. If you specifically want cherry blossoms and don’t mind paying more and booking early, go for late April. If you’re traveling on a tight budget and don’t mind the cold, winter (outside Seollal) will save you real money on accommodation.
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