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Voykit

When to go · South Korea

South Korea in May

Great month. Warm and dry; Buddha's Birthday lanterns and Children's Day crowds.

Key facts

Verdict
Great
Crowds
High
South Korea
Prices
High
South Korea

Verdict

GreatVoykit month rating for South Korea

Warm and dry; Buddha's Birthday lanterns and Children's Day crowds.

Is another month better than May?

No other month rates higher than May for South Korea in this guide.

Weather in May

  • Seoul and north-west · Seoul, Incheon, Suwon, the DMZbest weather

    Continental: dry winters down to −15 °C (5 °F) on cold snaps, hot humid summers. Fine dust (yellow dust and pollution) peaks Mar–Apr; the monsoon runs late Jun – Jul.

  • Busan and south-east coast · Busan, Gyeongju, Tongyeong, Ulsanbest weather

    Milder winters than Seoul, rarely below freezing; typhoons most likely Aug–Sep and ferries to Japan stop when they pass.

  • Jeju · Jeju City, Seogwipo, Hallasanbest weather

    Windy and wet; the island takes the first hit of most typhoons. Hallasan summit gets snow in winter; flights stop in strong crosswinds.

  • Gangwon mountains and east coast · Sokcho, Seoraksan, Gangneung, Pyeongchangbest weather

    Coldest region: ski season Dec–Feb, peak autumn colour mid-October in Seoraksan; summer beaches crowded in late Jul – Aug.

  • Gangwon: East coast (Sokcho, Gangneung, Yangyang) · East Sea shorelinebest weather

    Milder than the interior; sea fog and rain in July–August, typhoon tail-ends in late summer.

  • Coldest in Korea in winter; ski resorts usually run late November to March. Autumn colour peaks in October.

  • Gyeonggi: Gyeonggi lowlands (Suwon, Incheon, Gimpo) · west and south of Seoulbest weather

    Monsoon rain late June to July; August is hot and humid; January nights drop well below freezing.

  • Gyeonggi: Eastern hills (Gapyeong, Yangpyeong, Pocheon) · Gyeongchun and Jungang line corridorsbest weather

    A few degrees cooler than the lowlands; autumn colour peaks in late October and early November.

  • Jeju: Jeju City / north coast · island northbest weather

    Milder than the mainland; heaviest rain June–September, typhoons Aug–Sep.

  • Jeju: Seogwipo / south coast · island southbest weather

    Wetter and slightly warmer than the north; Hallasan summit is much colder and often in cloud.

  • North Chungcheong: Inland basin (Cheongju, Chungju, Jecheon) · Province-wide, landlockedbest weather

    Continent-style swings: July–August humid and 30 °C (86 °F)+, January often below -5 °C (23 °F). Rainy season (jangma) late June to mid-July; autumn leaves peak late October to early November.

  • North Gyeongsang: Inland basin (Gyeongju, Andong, Daegu) · Interior valleys ringed by the Sobaek and Taebaek rangesbest weather

    Daegu and the basins run several degrees hotter than the coast in July–August; monsoon rain lands late June to July, and typhoons can reach the east coast in August–September.

  • North Gyeongsang: East coast (Pohang) · Seaward side of the Taebaek rangebest weather

    Milder winters and cooler summers than the interior; sea fog and wind are the trade-off.

  • North Jeolla: Jeonju and the plains · Inland basin, west of the mountainsbest weather

    Hot, humid July–August; monsoon rain late June to July; cold, dry winters. Autumn is the clearest and busiest.

  • North Jeolla: Mountains (Muju, Deogyusan) · East of the provincebest weather

    Cooler than the plains; snow and skiing December to early March; foliage peaks in October.

  • Rainy season (jangma) late June to mid-July; August is humid and 30 °C (86 °F)+; January nights drop well below freezing.

  • Coastal fog and wind in spring; tidal flats are best at low tide — check the tide table before you go.

  • Rainy season (jangma) late June to mid-July; typhoons can hit Aug-Sep and stop ferries for a day.

  • South Gyeongsang: Inland (Jinju, Miryang, Hapcheon) · Nakdong basin and mountainsbest weather

    Hotter and colder than the coast; Haeinsa sits high and is cooler in summer.

  • South Jeolla: Gwangju and the interior · Honam plainbest weather

    Warmest province on the peninsula; July–August average highs near 30 °C (86 °F) with 290–330 mm of rain each month. Spring and October are the dry, comfortable windows.

  • South Jeolla: Yeosu and the south coast · Yellow Sea and Jeju Straitbest weather

    Sea moderates the heat; fog and wind can delay ferries in spring and autumn.

  • Seoul24 °C (75 °F) / 13 °C (55 °F), 10 rain days
  • Andong25 °C (77 °F) / 11 °C (52 °F), 8 rain days
  • Ansan23 °C (73 °F) / 11 °C (52 °F), 8 rain days
  • Anseong25 °C (77 °F) / 12 °C (54 °F), 8 rain days
  • Anyang23.4 °C (74 °F) / 13.9 °C (57 °F), 8 rain days
  • Asan24 °C (75 °F) / 13 °C (55 °F), 8 rain days
  • Baengnyeong Island18.7 °C (66 °F) / 11.1 °C (52 °F), 74 rain days
  • Boryeong22 °C (72 °F) / 12 °C (54 °F), 8 rain days
  • Buan12 °C (54 °F) / 23 °C (73 °F), 85 rain days
  • Bucheon22 °C (72 °F) / 13 °C (55 °F), 8 rain days
  • Bundang25 °C (77 °F) / 13 °C (55 °F), 9 rain days
  • Buyeo25 °C (77 °F) / 12 °C (54 °F), 8 rain days
  • Changwon24 °C (75 °F) / 14 °C (57 °F), 9 rain days
  • Cheonan24.1 °C (75 °F) / 11.4 °C (53 °F), 7 rain days
  • Cheongju25 °C (77 °F) / 13 °C (55 °F), 8 rain days
  • Cheorwon23 °C (73 °F) / 10 °C (50 °F), 9 rain days
  • Chujado20 °C (68 °F) / 13 °C (55 °F), 10 rain days
  • Chuncheon24 °C (75 °F) / 11 °C (52 °F), 9 rain days
  • Daebudo22 °C (72 °F) / 12 °C (54 °F), 8 rain days
  • Daegu26 °C (79 °F) / 14 °C (57 °F), 7 rain days
  • Daejeon25 °C (77 °F) / 13 °C (55 °F), 8 rain days
  • Damyang25 °C (77 °F) / 13 °C (55 °F), 8 rain days
  • Dangjin21 °C (70 °F) / 14 °C (57 °F), 8 rain days
  • Danyang27 °C (81 °F) / 11 °C (52 °F), 9 rain days
  • Deokjeok Island21 °C (70 °F) / 12 °C (54 °F), 8 rain days
  • Deokso20 °C (68 °F) / 10 °C (50 °F), 8 rain days
  • Dongducheon25 °C (77 °F) / 11 °C (52 °F), 9 rain days
  • Donghae22 °C (72 °F) / 12 °C (54 °F), 8 rain days
  • Ganghwa Island22 °C (72 °F) / 13 °C (55 °F), 8 rain days
  • Gangneung22 °C (72 °F) / 12 °C (54 °F), 9 rain days
  • Gapado20 °C (68 °F) / 13 °C (55 °F), 9 rain days
  • Gapyeong23 °C (73 °F) / 11 °C (52 °F), 9 rain days
  • Geoje23.1 °C (74 °F) / 13 °C (55 °F), 9 rain days
  • Geomundo21 °C (70 °F) / 13 °C (55 °F), 9 rain days
  • Gimcheon24 °C (75 °F) / 14 °C (57 °F), 8 rain days
  • Gimhae25 °C (77 °F) / 15 °C (59 °F), 11 rain days
  • Gimje18 °C (64 °F) / 9 °C (48 °F), 9 rain days
  • Gimpo23 °C (73 °F) / 13 °C (55 °F), 9 rain days
  • Goheung23 °C (73 °F) / 12 °C (54 °F), 11 rain days
  • Gongju25 °C (77 °F) / 12 °C (54 °F), 8 rain days
  • Goryeong24 °C (75 °F) / 12 °C (54 °F), 9 rain days
  • Goseong22 °C (72 °F) / 11 °C (52 °F), 9 rain days
  • Goyang25 °C (77 °F) / 11 °C (52 °F), 9 rain days
  • Guinsa20 °C (68 °F) / 11 °C (52 °F), 8 rain days
  • Gumi25 °C (77 °F) / 12 °C (54 °F), 8 rain days
  • Gunpo24 °C (75 °F) / 14 °C (57 °F), 8 rain days
  • Gunsan22 °C (72 °F) / 13 °C (55 °F), 8 rain days
  • Gunwi County22 °C (72 °F) / 10 °C (50 °F), 3 rain days
  • Gwacheon22 °C (72 °F) / 12 °C (54 °F), 10 rain days
  • Gwanggyo23 °C (73 °F) / 12 °C (54 °F), 9 rain days
  • Gwangju, Gyeonggi24 °C (75 °F) / 11 °C (52 °F), 8 rain days
  • Gwangju25 °C (77 °F) / 13 °C (55 °F), 9 rain days
  • Gwangmyeong24 °C (75 °F) / 14 °C (57 °F), 8 rain days
  • Gwangyang23 °C (73 °F) / 13 °C (55 °F), 8 rain days
  • Gyeongju26 °C (79 °F) / 12 °C (54 °F), 7 rain days
  • Gyeongsan23 °C (73 °F) / 11 °C (52 °F), 8 rain days
  • Haenam23 °C (73 °F) / 12 °C (54 °F), 9 rain days
  • Hampyeong23 °C (73 °F) / 13 °C (55 °F), 9 rain days
  • Hapcheon26 °C (79 °F) / 11 °C (52 °F), 8 rain days
  • Hongdo20 °C (68 °F) / 12 °C (54 °F), 8 rain days
  • Hongseong22 °C (72 °F) / 11 °C (52 °F), 9 rain days
  • Hwaseong23 °C (73 °F) / 12 °C (54 °F), 8 rain days
  • Icheon24.4 °C (76 °F) / 11.2 °C (52 °F), 11 rain days
  • Iksan22 °C (72 °F) / 12 °C (54 °F), 0 rain days
  • Inje24.5 °C (76 °F) / 11 °C (52 °F), 9 rain days
  • Jangheung23.6 °C (74 °F) / 11.3 °C (52 °F), 9 rain days
  • Jebudo22 °C (72 °F) / 13 °C (55 °F), 8 rain days
  • Jecheon23 °C (73 °F) / 9 °C (48 °F), 8 rain days
  • Jeongdongjin20 °C (68 °F) / 10 °C (50 °F), 3 rain days
  • Jeongeup25 °C (77 °F) / 12 °C (54 °F), 9 rain days
  • Jeongseon21 °C (70 °F) / 8 °C (46 °F), 9 rain days
  • Jeonju25 °C (77 °F) / 13 °C (55 °F), 8 rain days
  • Jindo22 °C (72 °F) / 13 °C (55 °F), 9 rain days
  • Jinju25 °C (77 °F) / 12 °C (54 °F), 9 rain days
  • Jumunjin23 °C (73 °F) / 12 °C (54 °F), 9 rain days
  • Miryang25 °C (77 °F) / 12 °C (54 °F), 8 rain days
  • Mokpo22 °C (72 °F) / 14 °C (57 °F), 9 rain days
  • Muan23.3 °C (74 °F) / 12.2 °C (54 °F), 8 rain days
  • Muju23 °C (73 °F) / 11 °C (52 °F), 9 rain days
  • Mungyeong24 °C (75 °F) / 10.6 °C (51 °F), 8 rain days
  • Naju13 °C (55 °F) / 24 °C (75 °F), 62 rain days
  • Namhae22 °C (72 °F) / 13 °C (55 °F), 5 rain days
  • Namwon10.7 °C (51 °F) / 24.8 °C (77 °F), 90 rain days
  • Namyangju25 °C (77 °F) / 10 °C (50 °F), 8 rain days
  • Nonsan23 °C (73 °F) / 13 °C (55 °F), 8 rain days
  • Paju24 °C (75 °F) / 11 °C (52 °F), 8 rain days
  • Pangyo23 °C (73 °F) / 12 °C (54 °F), 8 rain days
  • Pocheon25 °C (77 °F) / 11 °C (52 °F), 9 rain days
  • Pohang24 °C (75 °F) / 14 °C (57 °F), 8 rain days
  • Pyeongchang20 °C (68 °F) / 8 °C (46 °F), 9 rain days
  • Pyeongtaek25 °C (77 °F) / 13 °C (55 °F), 8 rain days
  • Sacheon21 °C (70 °F) / 13 °C (55 °F), 9 rain days
  • Samcheok20 °C (68 °F) / 11 °C (52 °F), 7 rain days
  • Sangju25 °C (77 °F) / 12 °C (54 °F), 8 rain days
  • Sejong City25 °C (77 °F) / 11 °C (52 °F), 8 rain days
  • Seogwipo22 °C (72 °F) / 14 °C (57 °F), 9 rain days
  • Seongju County25 °C (77 °F) / 12 °C (54 °F), 9 rain days
  • Seongnam22 °C (72 °F) / 12 °C (54 °F), 8 rain days
  • Seosan22.5 °C (73 °F) / 11.4 °C (53 °F), 9 rain days
  • Siheung23 °C (73 °F) / 13 °C (55 °F), 7 rain days
  • Sokcho22 °C (72 °F) / 12 °C (54 °F), 8 rain days
  • Somaemuldo22 °C (72 °F) / 13 °C (55 °F), 9 rain days
  • Songdo21 °C (70 °F) / 12 °C (54 °F), 8 rain days
  • Suanbo23 °C (73 °F) / 12 °C (54 °F), 7 rain days
  • Suwon24 °C (75 °F) / 12 °C (54 °F), 9 rain days
  • Taebaek21 °C (70 °F) / 8 °C (46 °F), 9 rain days
  • Tongyeong22 °C (72 °F) / 14 °C (57 °F), 9 rain days
  • Udo Island20 °C (68 °F) / 12 °C (54 °F), 9 rain days
  • Uijeongbu-si23 °C (73 °F) / 12 °C (54 °F), 9 rain days
  • Uijeongbu23 °C (73 °F) / 12 °C (54 °F), 7 rain days
  • Uiryeong23 °C (73 °F) / 15 °C (59 °F), 9 rain days
  • Uiwang19 °C (66 °F) / 9 °C (48 °F), 6 rain days
  • Ulsan24 °C (75 °F) / 13 °C (55 °F), 8 rain days
  • Wonju24 °C (75 °F) / 12 °C (54 °F), 0 rain days
  • Yanggu23 °C (73 °F) / 11 °C (52 °F), 10 rain days
  • Yangju24 °C (75 °F) / 11 °C (52 °F), 9 rain days
  • Yangsan25 °C (77 °F) / 14 °C (57 °F), 9 rain days
  • Yangyang22 °C (72 °F) / 13 °C (55 °F), 8 rain days
  • Yecheon25 °C (77 °F) / 12 °C (54 °F), 6 rain days
  • Yeoju25 °C (77 °F) / 11 °C (52 °F), 72 rain days
  • Yeoncheon23 °C (73 °F) / 11 °C (52 °F), 7 rain days
  • Yeongcheon23 °C (73 °F) / 13 °C (55 °F), 8 rain days
  • Yeongjong Island20 °C (68 °F) / 11 °C (52 °F), 8 rain days
  • Yeongju22 °C (72 °F) / 10 °C (50 °F), 9 rain days
  • Yeongwol20 °C (68 °F) / 10 °C (50 °F), 8 rain days
  • Yeonpyeong Island22 °C (72 °F) / 13 °C (55 °F), 9 rain days
  • Yeosu20.6 °C (69 °F) / 14.8 °C (59 °F), 9 rain days
  • Yesan25 °C (77 °F) / 12 °C (54 °F), 10 rain days
  • Yokjido21 °C (70 °F) / 14 °C (57 °F), 10 rain days
  • Yongin24 °C (75 °F) / 11 °C (52 °F), 8 rain days
  • Yuseong-gu25 °C (77 °F) / 13 °C (55 °F), 9 rain days
  • Busan23 °C (73 °F) / 14 °C (57 °F), 9 rain days
  • Jeju City22 °C (72 °F) / 14 °C (57 °F), 9 rain days
  • Incheon23 °C (73 °F) / 14 °C (57 °F), 8 rain days

Festivals and holidays

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

  • Workers' Day

    1 May

    Many firms and banks close; its status as a full public holiday changed recently — check.

  • Children's Day

    5 May

    Amusement parks, zoos and palaces packed with families.

  • Buddha's Birthday

    About 13 May 2027 (8th day of the 4th lunar month — check)

    Lantern festival in Seoul the weekend before; temples busy and free meals at some.

  • Fine and yellow dust season

    March to May · Seoul

    Some days the air quality index is unhealthy: move outdoor plans and wear a KF94 mask.

  • Royal Culture Festival check

    Spring (and some autumn events) · Seoul

    Re-enactments, concerts and night openings; some events need online booking.

  • Lotus Lantern Festival check

    The weekend before Buddha's Birthday · Seoul

    Evening lantern parade on the Saturday; street festival by Jogyesa on the Sunday.

Crowds and prices

Crowds · South Korea
High
Prices · South Korea
High

High-price month: see what to book ahead.

Compare two months

Weather, crowds and prices for any two months in South Korea, side by side.

  • Verdict

    May: Great

    Apr: Great

  • Crowds

    May: High

    Apr: High

  • Prices

    May: High

    Apr: High

  • Festivals listed

    May: 6

    Apr: 4

May: Warm and dry; Buddha's Birthday lanterns and Children's Day crowds.

April: Cherry blossom in Seoul and Gyeongju early in the month; dust days still happen.

South Korea: figures are long-term averages from this guide, not a forecast.

What to pack

Nothing unusual for the weather this month.

Build the full packing list for your trip →

Where to go in May

Rated best or good this month

  • Seoul and north-west

    Best weather of the year (Seoul, Incheon, Suwon, the DMZ)

  • Busan and south-east coast

    Best weather of the year (Busan, Gyeongju, Tongyeong, Ulsan)

  • Jeju

    Best weather of the year (Jeju City, Seogwipo, Hallasan)

  • Gangwon mountains and east coast

    Best weather of the year (Sokcho, Seoraksan, Gangneung, Pyeongchang)

  • Seoul

    Warm and dry; a good month.

  • Andong

    Best months: Sep–Oct; also Apr–May

  • Ansan

    Best months: Apr–Jun, Sep–Oct

  • Anseong

    Best months: Apr–May, Sep–Oct

  • Anyang

    Best months: Apr–May, Oct–Nov

  • Asan

    Best months: Apr–May, Sep–Nov

  • Baengnyeong Island

    Best months: May–Jun, Sep–Oct

  • Boryeong

    Best months: May–Jun, Sep–Oct; July for the Mud Festival