South Korea 50GB 30 days
SKTelecom / LG Uplus
- データ
- 50GB
- 有効期間
- 30 days
- テザリング
- 可
- 通信方式
- 3G / 4G / 5G
- 5G対応
- テザリング
- 追加チャージ対応
Validity starts on first connection at the destination
〜から￥4,163￥3,954
The best time to visit South 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 South 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.
South Korea eSIM plans
Fixed
South Korea 20GB 30 days
SKTelecom / LG Uplus
- データ
- 20GB
- 有効期間
- 30 days
- テザリング
- 可
- 通信方式
- 3G / 4G / 5G
- 5G対応
- テザリング
- 追加チャージ対応
Validity starts on first connection at the destination
〜から￥2,306￥2,190
South Korea 10GB 30 days
SKTelecom / LG Uplus
- データ
- 10GB
- 有効期間
- 30 days
- テザリング
- 可
- 通信方式
- 3G / 4G / 5G
- 5G対応
- テザリング
- 追加チャージ対応
Validity starts on first connection at the destination
〜から￥1,377￥1,308
South Korea 5GB 30 days
SKTelecom / LG Uplus
- データ
- 5GB
- 有効期間
- 30 days
- テザリング
- 可
- 通信方式
- 3G / 4G / 5G
- 5G対応
- テザリング
- 追加チャージ対応
Validity starts on first connection at the destination
〜から￥758￥720
South Korea +126 countries 5GB 30 days
127 countries · partner networks
Works in 127 countries: South Korea, Japan, Australia +124すべて見る
South Korea, Japan, Australia, China, Hong Kong, Singapore, Taiwan, United Kingdom, United States, Vietnam, Albania, Argentina, Austria, Azerbaijan, Bahrain, Bangladesh, Belgium, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina Faso, Cambodia, Cameroon, Canada, Chad, Chile, Colombia, Costa Rica, Croatia, Cyprus, Czechia, Denmark, DR Congo, Ecuador, Egypt, El Salvador, Estonia, Eswatini, Finland, France, Gabon, Georgia, Germany, Ghana, Gibraltar, Greece, Guadeloupe, Guatemala, Honduras, Hungary, Iceland, India, Indonesia, Ireland, Isle of Man, Israel, Italy, Ivory Coast, Jersey, Jordan, Kazakhstan, Kenya, Kosovo, Kuwait, Kyrgyzstan, Latvia, Liberia, Liechtenstein, Lithuania, Luxembourg, Madagascar, Malawi, Malaysia, Mali, Malta, Martinique, Mexico, Moldova, Montenegro, Morocco, Netherlands, New Zealand, Nicaragua, Niger, Nigeria, North Macedonia, Norway, Oman, Pakistan, Panama, Paraguay, Peru, Philippines, Poland, Portugal, Puerto Rico, Qatar, Republic of the Congo, Réunion, Romania, Saint Barthélemy, Saint Martin, Saudi Arabia, Senegal, Serbia, Seychelles, Slovakia, Slovenia, South Africa, Spain, Sri Lanka, Sweden, Switzerland, Tanzania, Thailand, Tunisia, Turkey, Uganda, Ukraine, United Arab Emirates, Uruguay, Uzbekistan, Zambia
- データ
- 5GB
- 有効期間
- 30 days
- テザリング
- 可
- 通信方式
- 3G / 4G / 5G
- 5G対応
- テザリング
- 追加チャージ対応
Validity starts on first connection at the destination
〜から￥7,258￥6,894
South Korea +126 countries 10GB 30 days
127 countries · partner networks
Works in 127 countries: South Korea, Japan, Australia +124すべて見る
South Korea, Japan, Australia, China, Hong Kong, Singapore, Taiwan, United Kingdom, United States, Vietnam, Albania, Argentina, Austria, Azerbaijan, Bahrain, Bangladesh, Belgium, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina Faso, Cambodia, Cameroon, Canada, Chad, Chile, Colombia, Costa Rica, Croatia, Cyprus, Czechia, Denmark, DR Congo, Ecuador, Egypt, El Salvador, Estonia, Eswatini, Finland, France, Gabon, Georgia, Germany, Ghana, Gibraltar, Greece, Guadeloupe, Guatemala, Honduras, Hungary, Iceland, India, Indonesia, Ireland, Isle of Man, Israel, Italy, Ivory Coast, Jersey, Jordan, Kazakhstan, Kenya, Kosovo, Kuwait, Kyrgyzstan, Latvia, Liberia, Liechtenstein, Lithuania, Luxembourg, Madagascar, Malawi, Malaysia, Mali, Malta, Martinique, Mexico, Moldova, Montenegro, Morocco, Netherlands, New Zealand, Nicaragua, Niger, Nigeria, North Macedonia, Norway, Oman, Pakistan, Panama, Paraguay, Peru, Philippines, Poland, Portugal, Puerto Rico, Qatar, Republic of the Congo, Réunion, Romania, Saint Barthélemy, Saint Martin, Saudi Arabia, Senegal, Serbia, Seychelles, Slovakia, Slovenia, South Africa, Spain, Sri Lanka, Sweden, Switzerland, Tanzania, Thailand, Tunisia, Turkey, Uganda, Ukraine, United Arab Emirates, Uruguay, Uzbekistan, Zambia
- データ
- 10GB
- 有効期間
- 30 days
- テザリング
- 可
- 通信方式
- 3G / 4G / 5G
- 5G対応
- テザリング
- 追加チャージ対応
Validity starts on first connection at the destination
〜から￥11,900￥11,304
The best time to visit South 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.続きを読む 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.続きを読む VietnamLong enough that no single month is good in the north, centre and south at once — you have to decide which part matters most.続きを読む TaiwanAn island where north and south are always a season apart, and typhoon season is the one thing genuinely worth planning around.続きを読む IndonesiaAn archipelago wide enough that the islands do not share a wet season — Bali and Sumatra do not run on the same calendar.続きを読む United KingdomBritain has no dry season, only lighter and darker ones, so aim for the long evenings of late spring and early autumn.続きを読む IrelandIreland 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.続きを読む FranceFrance 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.続きを読む GermanyGermany peaks twice in opposite ways: a summer lived outdoors in beer gardens, and a December when the squares turn into markets.続きを読む United StatesA continent-sized country where the right month depends entirely on which of its climates you booked, from desert to alpine to hurricane coast.続きを読む 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.続きを読む 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.続きを読む