Spring (April–May) and autumn (late September–November) are the two best times to visit Korea, with mild weather and the scenery most people come for. Summer is hot and beach-focused; winter is cold, quiet and cheap. The right month really comes down to what you want out of the trip, so here's how each season actually plays out.
Spring (April–May): our top pick for a first visit
Mild days, cherry blossoms, and green filling in everywhere. The blossoms open in early April and move south-to-north, so Busan and Jeju bloom first and Seoul follows a week or two later. This is the prettiest time to travel, and everyone knows it, which is why the famous spots get packed and hotel prices climb. Book trains and stays well ahead.
Summer (June–August): beaches and sticky heat
Hot and humid, with a rainy stretch called jangma that usually lands in July. This is when the coast comes alive: Busan's Haeundae and the east coast around Gangneung fill up with weekenders. Plan your outdoor sightseeing for morning and evening, duck indoors in the sweaty afternoons, and watch the forecast for typhoons in late August and September.
Autumn (late September–November): the season hikers wait for
Crisp air, clear skies, and fall foliage that peaks in the mountains and around Gyeongju's temples through October and early November. If you care about hiking and photos, this is the season to aim for. It's as popular as spring, so reserve ahead the same way.
Winter (December–February): cold, calm and good value
Cold and dry, with real snow in the north and east. Ski resorts near Gangneung and Pyeongchang (which hosted the 2018 Winter Olympics) run through the season, and the cities empty out. If you'd trade warmth for short queues and lower prices, this is your window. Bring proper layers.
Festivals worth planning around
A festival is a good excuse to get beyond the usual sights and see a region at its liveliest:
- Spring: cherry-blossom festivals, with Jinhae (near Busan) the biggest, plus the green-tea fields opening at Boseong.
- Summer: the Boryeong Mud Festival on the west coast, and beach nights and fireworks in Busan.
- Autumn: the Andong Mask Dance Festival and the Jinju Namgang Lantern Festival, both worth the trip out from Seoul.
- Winter: the Hwacheon Sancheoneo ice-fishing festival, and ski season near Gangneung.
Quick picks
- First visit or photography: spring or autumn.
- Beaches and islands: summer, keeping an eye on late-summer typhoons.
- Fewest crowds and lowest prices: late autumn or winter.
- Skiing and snow: December to February in the east.
Whatever season you land in, the KTX makes it easy to chase better weather across the country. Doing several train legs? Price out the foreigner-only KR Pass before you buy single tickets.