South Korea 50GB 30 days
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The best time to visit Sør-Korea
Four sharply different seasons over a short distance, and autumn is the one locals themselves name as the best.
October gives the most usable weather per day on the ground: dry, comfortably cool, with autumn colour as a bonus. May comes second and is usually a touch less busy.
What a year in Sør-Korea looks like
South Korea has a genuinely cold, dry winter, a hot humid summer with a short rainy season in the middle of the year, and two brief transitional seasons that are the prettiest. Because the country is not large, the weather does not differ much between Seoul, Busan and Jeju — except that Jeju is milder and windier. Picking a month is therefore more straightforward than in its longer neighbours.
The year, in windows
- September to November — Dry air, clear skies, and autumn colour running north to south through October into early November. It is the easiest time of year both for walking cities and for climbing hills. Rooms in Seoul and Busan tighten on October weekends.
- April to May — Spring warms quickly and the cities fill with blossom. May is often the steadiest month of good weather before the humidity arrives. Early in the season there can be days of poor air quality from dust blown in from outside the country.
- June to August — A short rainy season followed by heat and humidity. These are the months when Koreans head for the coast and Jeju, and seaside rates climb through midsummer. Rain tends to come hard in bursts rather than all day.
- December to February — Cold and dry, with sub-zero temperatures normal in Seoul. Ski areas open and the cities stay walkable because there is little rain. Pack properly: the wind makes it feel colder than the number suggests.
The weeks to aim for
October gives the most usable weather per day on the ground: dry, comfortably cool, with autumn colour as a bonus. May comes second and is usually a touch less busy.
The weeks to avoid
Chuseok and lunar new year are when the country travels home at once: intercity trains fill and some businesses close. Avoid them unless the holiday is the point, and if you cannot, book train seats ahead.
What the season does to a data plan
Coverage across South Korea is dense — in cities, on the metro and on the high-speed trains — and the season barely affects it. What does affect it is hiking trails in the national parks, which thin with terrain rather than with the month.
Sør-Korea eSIM plans
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South Korea 20GB 30 days
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South Korea 10GB 30 days
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South Korea 5GB 30 days
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South Korea +126 countries 5GB 30 days
127 countries · partner networks
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Sør-Korea, Japan, Australia, Hongkong SAR Kina, Kina, Singapore, Storbritannia, Taiwan, USA, Vietnam, Albania, Argentina, Aserbajdsjan, Bahrain, Bangladesh, Belgia, Bolivia, Bosnia-Hercegovina, Botswana, Brasil, Brunei, Bulgaria, Burkina Faso, Canada, Chile, Colombia, Costa Rica, Danmark, De forente arabiske emirater, Ecuador, Egypt, El Salvador, Elfenbenskysten, Estland, Eswatini, Filippinene, Finland, Frankrike, Gabon, Georgia, Ghana, Gibraltar, Guadeloupe, Guatemala, Hellas, Honduras, India, Indonesia, Irland, Island, Israel, Italia, Jersey, Jordan, Kambodsja, Kamerun, Kasakhstan, Kenya, Kirgisistan, Kongo, Kongo-Brazzaville, Kosovo, Kroatia, Kuwait, Kypros, Latvia, Liberia, Liechtenstein, Litauen, Luxemburg, Madagaskar, Malawi, Malaysia, Mali, Malta, Man, Marokko, Martinique, Mexico, Moldova, Montenegro, Nederland, New Zealand, Nicaragua, Niger, Nigeria, Nord-Makedonia, Norge, Oman, Pakistan, Panama, Paraguay, Peru, Polen, Portugal, Puerto Rico, Qatar, Réunion, Romania, Saint-Barthélemy, Saint-Martin, Saudi-Arabia, Senegal, Serbia, Seychellene, Slovakia, Slovenia, Spania, Sri Lanka, Sveits, Sverige, Sør-Afrika, Tanzania, Thailand, Tsjad, Tsjekkia, Tunisia, Tyrkia, Tyskland, Uganda, Ukraina, Ungarn, Uruguay, Usbekistan, Zambia, Østerrike
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South Korea +126 countries 10GB 30 days
127 countries · partner networks
Works in 127 countries: Sør-Korea, Japan, Australia +124See all
Sør-Korea, Japan, Australia, Hongkong SAR Kina, Kina, Singapore, Storbritannia, Taiwan, USA, Vietnam, Albania, Argentina, Aserbajdsjan, Bahrain, Bangladesh, Belgia, Bolivia, Bosnia-Hercegovina, Botswana, Brasil, Brunei, Bulgaria, Burkina Faso, Canada, Chile, Colombia, Costa Rica, Danmark, De forente arabiske emirater, Ecuador, Egypt, El Salvador, Elfenbenskysten, Estland, Eswatini, Filippinene, Finland, Frankrike, Gabon, Georgia, Ghana, Gibraltar, Guadeloupe, Guatemala, Hellas, Honduras, India, Indonesia, Irland, Island, Israel, Italia, Jersey, Jordan, Kambodsja, Kamerun, Kasakhstan, Kenya, Kirgisistan, Kongo, Kongo-Brazzaville, Kosovo, Kroatia, Kuwait, Kypros, Latvia, Liberia, Liechtenstein, Litauen, Luxemburg, Madagaskar, Malawi, Malaysia, Mali, Malta, Man, Marokko, Martinique, Mexico, Moldova, Montenegro, Nederland, New Zealand, Nicaragua, Niger, Nigeria, Nord-Makedonia, Norge, Oman, Pakistan, Panama, Paraguay, Peru, Polen, Portugal, Puerto Rico, Qatar, Réunion, Romania, Saint-Barthélemy, Saint-Martin, Saudi-Arabia, Senegal, Serbia, Seychellene, Slovakia, Slovenia, Spania, Sri Lanka, Sveits, Sverige, Sør-Afrika, Tanzania, Thailand, Tsjad, Tsjekkia, Tunisia, Tyrkia, Tyskland, Uganda, Ukraina, Ungarn, Uruguay, Usbekistan, Zambia, Østerrike
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The best time to visit Sør-Korea
Is winter too cold to travel?+
Not if you pack for it. The cities stay walkable because it is dry and a great deal of indoor space is connected up. The upside is fewer visitors than other seasons and lower room rates.
Does Jeju differ from the mainland?+
Yes. Jeju is milder and windier: its winter is not as cold as Seoul's, though the sea wind makes it feel sharper than the reading. Summer is when domestic visitors go in the greatest numbers.
How long is the rainy season?+
A few weeks around midyear, not the whole summer. It comes in heavy bursts between sunny days, and keeping one indoor fallback per day is enough.
The best time to visit elsewhere
JapanA country long enough north to south to hold two seasons on the same day — choosing a month is really choosing which part of it to be in.Read more ThailandThree seasons as locals actually count them, and two coasts whose rain does not arrive at the same time — so almost every month has somewhere that works.Read more VietnamLong enough that no single month is good in the north, centre and south at once — you have to decide which part matters most.Read more TaiwanAn island where north and south are always a season apart, and typhoon season is the one thing genuinely worth planning around.Read more IndonesiaAn archipelago wide enough that the islands do not share a wet season — Bali and Sumatra do not run on the same calendar.Read more StorbritanniaBritain has no dry season, only lighter and darker ones, so aim for the long evenings of late spring and early autumn.Read more IrlandIreland can serve four seasons in one day all year, so the payoff window is late May to September when the light lasts and the wind eases.Read more FrankrikeFrance stacks three seasons at once: an Alpine snow year, a Riviera beach year, and a Paris that is best before the city leaves on holiday.Read more TysklandGermany peaks twice in opposite ways: a summer lived outdoors in beer gardens, and a December when the squares turn into markets.Read more USAA continent-sized country where the right month depends entirely on which of its climates you booked, from desert to alpine to hurricane coast.Read more CanadaA country with a short intense summer, a long winter that sells itself, and two shoulder months when even locals cannot guess what to wear.Read more MexicoA country where the rain arrives on schedule in the afternoon rather than all day, and the highlands run a different calendar from both coasts.Read more