South Korea
Best Time to Visit Seoul
Seoul offers distinct seasonal experiences, from vibrant cherry blossoms in spring to crisp autumn foliage, but weather extremes and holiday crowds demand strategic timing. The city is visitable year-round, though spring and autumn provide the most balanced combination of comfortable weather and manageable visitor numbers.
✦ Visit in late October or early November for flawless weather, manageable crowds, stunning foliage, and reasonable prices—Seoul's genuine sweet spot.
✅ Best months
October and early November deliver Seoul's ideal window: temperatures of 10–18°C, low humidity, clear skies, and autumn colours in parks like Namsan and Changgyeongung Palace. Crowds thin after the autumn holiday period, hotel rates remain reasonable, and outdoor sightseeing is genuinely pleasant.
🔥 Peak season
April and September–October drive peak tourism. April's cherry blossom season (typically mid-to-late April) fills hotels and major parks within days; rates spike 30–50% and popular spots like Yeouido Park become uncomfortably crowded. September recovers from summer heat and August holidays; October's clear weather and foliage attract simultaneous domestic and international visitors, sustaining high prices through November.
💷 Shoulder (best value)
March and November offer strong value. March provides mild weather (5–10°C), fewer crowds than April, and lower rates before spring peaks. Late November captures lingering autumn colour with negligible rain and continued discounts. Both months suit budget-conscious travellers willing to pack layers.
🌙 Quietest & cheapest
December to February is cheapest and quietest; hotel rates drop 20–40% and museums are uncrowded. However, winters are harsh (−5 to 5°C), heating systems are aggressive indoors, and outdoor walking is limited. Occasional snow can disrupt plans. Ideal only for those prioritising budget over comfort.
Seoul season by season
Spring (Mar–May)
Weather: 5–20°C; April is warm and blooming; late May becomes humid
Crowds: high
Cherry blossoms (mid-late April) dominate; plan accommodation months ahead. March is quieter with emerging green. May's heat builds.
Summer (Jun–Aug)
Weather: 20–30°C; June–July intensely humid with frequent rain; August muggy and hot
Crowds: medium
School holidays drive domestic tourism in July–August. Air quality can suffer. Best for riverside walks and evening street food; daytime sightseeing is exhausting.
Autumn (Sep–Nov)
Weather: 10–25°C; September warm and humid; October–November crisp, dry, and clear
Crowds: high
Foliage peaks late October–early November. September recovers from summer; October attracts maximum visitors. November is the sweet spot: colour lingers, crowds ease, weather holds.
Winter (Dec–Feb)
Weather: −5 to 5°C; dry and clear; occasional snow
Crowds: low
Quietest period. Cheonggyecheon (stream) freezes; winter festivals (December–January) offer cultural events. Cold but excellent for budget and museums.
🎭 Events worth timing a trip around
Seoul Lantern Festival (November, Cheonggyecheon) illuminates the city with colourful lantern displays and draws large crowds but is visually striking. Lunar New Year (late January–early February) and Chuseok autumn festival (September–October) are major holidays when locals travel; the city quietens but many restaurants close.
🧳 What to pack
Layer obsessively: Seoul's heated indoor spaces (often overheated) contrast sharply with cold outdoor air in winter; carry a compact light layer you can shed indoors without abandoning warmth outside.
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Room tips, the 14-day forecast for your exact stay, dining, transport and more — free for any Seoul hotel.
Guide last updated June 2026.