Best Time to Visit Seoul

Seoul's sweet spots are spring (late March–May) for cherry blossoms and autumn (September–November) for foliage and festivals. Both shoulder seasons offer mild weather, manageable crowds, and lower prices than summer. Summer brings oppressive humidity and the jangma monsoon; winter is cold but cheap and festive.

Key facts

Frequently asked questions

When do Seoul's cherry blossoms bloom?

Cherry blossoms typically first appear in Seoul in late March to early April, with full bloom arriving roughly one week after first flowering — historically around early April. The peak blooming window lasts only about 2–3 weeks and shifts year to year based on winter temperatures, so check the annual VisitKorea blossom forecast (published each February or March) before booking.

Should I avoid visiting Seoul in summer?

Summer (June–August) is the least comfortable season: Seoul sees roughly 60% of its annual rainfall during these months, and the jangma monsoon typically runs from late June through late July, dropping around 414 mm in July alone. After the rains, August heat indexes can push close to 38°C (100°F) with heavy humidity. It is also peak tourist season with the highest hotel prices.

Is Seoul worth visiting in winter?

Yes, especially for budget travelers — hotel rates are typically 15–25% lower than peak season (April–May and September–October) in December–February. January is the coldest month, with daytime highs near 1°C (34°F) and lows around -8°C (18°F), and sharp wind chill. Upsides include the Seoul Lantern Festival along Cheonggyecheon Stream (November–January), ice skating at Seoul Plaza, and far fewer crowds.

Are there any dates or events I should specifically avoid?

Avoid the jangma monsoon window (roughly late June–late July) if outdoor sightseeing is a priority. During Chuseok and Seollal (Lunar New Year, late January or February), intercity highways and KTX trains become severely congested — plan city-only days or book trains months ahead. Major spring and autumn festivals spike hotel prices 50–200%, so book 3–6 months in advance if your dates overlap.

What is the single best month to visit Seoul?

April is widely considered the top month: cherry blossoms peak in early April, temperatures are mild (averaging around 16°C/61°F in the afternoon), and the Yeouido Spring Flower Festival fills Hangang Park with over 1,800 cherry trees in bloom. Book accommodation 3–6 months ahead, as hotels sell out fast and prices spike 50–200% during the festival period.

When is the best time to see autumn foliage in Seoul?

Seoul's autumn foliage generally begins around mid-October and peaks in the last week of October, with parks, palaces, and mountain trails turning gold and crimson. Bukhansan, Gyeongbokgung Palace, and Seoul Forest are top city spots; for the most vivid colors in Korea, day-trip to Naejangsan National Park, which peaks in early-to-mid November.

What are hotel prices like across the seasons?

Peak season (April–May cherry blossoms and September–October foliage) sees hotel rates 20–40% above the annual average; mid-range hotels run roughly $70–$130/night. Winter (December–February) is the cheapest window, with rates 15–25% lower. Budget guesthouses start around $18–$35/night year-round, while luxury properties range $250–$430+/night.

How does Chuseok (Korean Thanksgiving) affect a Seoul trip?

Chuseok 2026 falls September 24–26 (with many Koreans taking September 27 as a four-day break). Seoul empties as residents travel to hometowns, meaning quieter streets and shorter queues at major attractions — but some small restaurants and local markets close. The five royal palaces offer free admission during the holiday, and KTX train tickets sell out weeks in advance, so book early.

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