Travel & Life · Published 2026-11-03

Best Time to Visit Korea: Weather and Seasons Month by Month (2026)

Short answer: Spring (March to May) and fall (September to November) are the mild, comfortable seasons and suit most sightseeing. Summer is hot and humid, with a rainy season from late June and a typhoon season from June to October. Winter is cold and dry, and is the season for skiing and hot springs. The best time depends on what you want to do.

This guide uses the Korea Tourism Organization’s VisitKorea climate page and the Korea Meteorological Administration (KMA) “Climate of Korea” page. One limit up front: This guide could not read KMA’s monthly 1991-2020 normals table for Seoul, Busan or Jeju, so the monthly temperatures below come from VisitKorea, and rainfall is described with the KMA ranges rather than month-by-month figures.

Korea’s climate in brief

KMA says Korea lies in the temperate zone with four distinct seasons, and that its climate combines continental and oceanic features. According to KMA:

• Annual mean temperature is 10 to 16 °C, except in high mountain areas.
• August is the warmest month, with monthly means of 23 to 27 °C. January is the coldest, with monthly means of -6 to 7 °C.
• Annual precipitation is 1,000 to 1,800 mm in the south and 1,100 to 1,400 mm in the central part of the country.
• More than half of the annual total falls in the rainy season, and winter precipitation is less than 10% of the annual total.

KMA’s page does not state which years these ranges cover, so treat them as general guidance.

Monthly temperatures: Seoul and Busan

VisitKorea lists the average monthly highs and lows below. It does not say which years it averages, and it does not include Jeju. The page has a few typos in other columns, which This guide did not use.

Source: VisitKorea “Climate & Seasons.” Busan stays noticeably milder than Seoul from November to March, while the two cities are close in summer.

Season by season

Spring (March to May). VisitKorea calls it ideal for walking and flower viewing, naming forsythia, cherry blossoms, azaleas and roses. It suggests a light jacket in March and outerwear in May. In Seoul the table above shows highs rising from 11.0 °C in March to 23.6 °C in May, with lows still near freezing in early March.

Summer (June to August). VisitKorea notes over 270 beaches along the coast, hot and humid weather, and advises breathable clothing, sun protection and an umbrella or raincoat. KMA describes the rainy season, called Changma, as starting in southern Korea in late June and moving north, lasting about 30 days on average, and bringing frequent heavy rain and sometimes flash floods. KMA adds that about 28 typhoons form each year in the Northwest Pacific and that two or three affect the Korean Peninsula between June and October. KMA lists humidity as highest in July, at 80 to 90% nationwide.

Fall (September to November). VisitKorea describes pleasant outdoor weather averaging around 15 °C and a major festival season, with wide temperature swings that call for layers or a jacket. It links to a guide of 2026 autumn festivals; check that guide for specific events and dates.

Winter (December to February). VisitKorea says temperatures often drop below freezing and recommends thick outerwear, gloves, scarves and non-slip shoes. It names skiing, snowboarding and hot springs as popular activities. KMA notes winters often bring heavy snowfall, although winter precipitation is under 10% of the annual total.

Holidays and busy travel periods

VisitKorea’s holiday page (updated March 27, 2026) lists these 2026 public holidays: New Year’s Day (Jan 1), Seollal (Feb 16-18), Independence Movement Day (Mar 1, substitute Mar 2), Labor Day (May 1), Children’s Day (May 5), Buddha’s Birthday (May 24, substitute May 25), Memorial Day (Jun 6), Constitution Day (Jul 17), Liberation Day (Aug 15, substitute Aug 17), Chuseok (Sep 24-26), National Foundation Day (Oct 3, substitute Oct 5), Hangeul Day (Oct 9) and Christmas (Dec 25).

For travel planning, VisitKorea says:

• Seollal and Chuseok are the most important traditional holidays. Many shops may close for several days, and heavy travel to hometowns makes transport busy.
• Seollal and Chuseok follow the lunar calendar, so their dates change each year. The page does not list 2027 dates, so check VisitKorea or the Korean government for future years.
• Government offices and banks close on public holidays, while palaces, museums, department stores and amusement parks usually stay open.
• Train and express bus tickets sell out quickly during major holidays, and many national museums close on Chuseok Day.

Which season fits your trip?

Quick checklist

• Check the forecast before you go; the figures here are averages, not predictions.
• Pack layers in spring and fall.
• If traveling in late June to July, plan indoor alternatives for heavy rain.
• Look up Seollal and Chuseok dates for your travel year and book transport early.

Common mistakes

• Assuming one city’s weather applies everywhere. Busan is milder than Seoul in winter.
• Planning a long outdoor day in the July rainy season without a backup.
• Booking trains or buses at the last minute around a major holiday.

This guide is general information, not personal advice. Confirm current forecasts, holiday dates and event schedules with official sources before you travel.

Sources

• VisitKorea (Korea Tourism Organization): Climate & Seasons
• Korea Meteorological Administration (KMA): Climate of Korea
• VisitKorea: Korean public holidays 2026
• VisitKorea: 2026 Chuseok Holiday Travel Guide

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