Quick Answer
At a glance
- Best time
- Apr–May, Sep–Nov; Dec–Feb for mild winter
- Time needed
- 3 to 5 days
- Currency
- South Korean won (KRW)
- Language
- Korean
- From the airport
- Limousine bus 600 or 800, up to 5,500 won
- Visa
- K-ETA exemption until 31 Dec 2026
- Getting around
- Island buses or a rental car
Jeju is Korea’s volcanic island: one big mountain in the middle, hundreds of small volcanic cones (oreum) on its flanks and a coast of black lava rock. Most visitors arrive on a one-hour domestic flight from Seoul. The trip comes down to four choices: the season, the side of the island you sleep on, buses or a car, and whether you book Hallasan. Rules and fares below were checked on 9 October 2026.
When is the best time to visit Jeju?
Jeju is the warmest part of South Korea. The Korea Meteorological Administration’s 1991-2020 normals give Jeju City an annual mean of 16.2°C and Seogwipo, on the south coast, 16.9°C. It is also wet and windy: Jeju City averages about 1,502 mm of rain a year and Seogwipo about 1,990 mm.
| Season | What the KMA normals say | Feel | Best for |
|---|---|---|---|
| Spring (Mar–May) | Mild and changeable, with frequent passing low-pressure systems | Busy at blossom time | Hiking, coastal walks |
| Summer (Jun–Aug) | First in line for the monsoon front; July averages about 231 mm of rain | Hot, humid, typhoon risk | Beaches between showers |
| Autumn (Sep–Nov) | October averages about 18.7°C with about 92 mm of rain | Clear, comfortable | Hallasan, oreum, the best all-round months |
| Winter (Dec–Feb) | About 7.2°C on average, highs about 10.4°C, lows about 4.3°C; about 185 mm of precipitation in the three months | Quiet, windy, snow on Hallasan | Snowy summit hikes, citrus season, low prices |
Winter is Jeju’s quiet surprise. The coast rarely freezes while Hallasan, at 1,950 m, turns white, so you can hike in snow in the morning and walk a mild coast in the afternoon. It is also citrus harvest season, when many farms run pick-your-own sessions; dates vary by farm. Pack windproof layers: the KMA notes that strong winds are one of the island’s defining features.
Where should you stay in Jeju?
Jeju is about 73 km from east to west, so your base decides how much time you spend on the road.
| Area | Best for | Trade-off |
|---|---|---|
| Jeju City (Yeon-dong, Nohyeong) | First-timers without a car: next to the airport, the bus hub and Hallasan buses | A city, not a beach |
| Seogwipo | The south coast, waterfalls, coastal Olle walking routes, the 800 airport bus | Across the mountain from the airport |
| Jungmun | Resort hotels and beaches on the south coast, the 600 airport bus | Spread out, quiet in the evening |
| Aewol and the west coast | Sea-view cafés and sunsets | Hard without a car |
| Seongsan (east) | Sunrise at Seongsan Ilchulbong, the Udo ferry, Manjanggul nearby | Far from everything else |
First time without a car? Split the stay: two nights in Jeju City for Hallasan and the airport, two in Seogwipo for the south. With a car, one base anywhere works.
How do you get to and around Jeju?
Jeju has no rail or road link to the mainland, so you fly, usually from Gimpo in Seoul (our getting around South Korea guide covers that route), or arrive directly from abroad. On the island, it is buses or a rental car.
| Option | Adult fare (2026) | Good for |
|---|---|---|
| Regular island bus (trunk and branch routes) | 1,150 won by card, 1,200 won cash | Jeju City, Seogwipo and most sights |
| Express bus | From 2,000 won by card, up to 3,000 won | Fast cross-island trips |
| Airport limousine 600 | 1,300 to 5,500 won | Airport to Jungmun and Seogwipo hotels |
| Airport limousine 800 | 1,300 to 5,000 won | Airport to Seogwipo bus terminal |
Do you need to book Hallasan, and can you hike it in winter?
Hallasan National Park runs a reservation system for the two trails that reach the summit crater, Baengnokdam.
- Seongpanak trail: 9.6 km each way, about 4.5 hours up and around 9 hours return, the longest and gentlest route. Daily cap of 1,000 summit hikers.
- Gwaneumsa trail: shorter and steeper, with a daily cap of 500 summit hikers.
- No booking needed below the top. Since 3 May 2025 you can walk Seongpanak as far as the Jindallaebat shelter (7.3 km) and Gwaneumsa as far as Samgakbong shelter (6 km) without one. The Eorimok and Yeongsil trails, which climb to Witse-oreum, never needed a booking.
- How to book: reservations for a month open at 09:00 on the first working day of the previous month. The QR code arrives by text to the phone number you enter. Skipping a booking without cancelling bars you for three months, and a second no-show for a year.
Winter cutoffs (1 October to 31 March):
| Trail | Last entry at the trailhead | Start descending by |
|---|---|---|
| Seongpanak | 11:30 | 13:30 at the summit; 15:30 at Jindallaebat shelter |
| Gwaneumsa | 11:30 | 13:30 at the summit; 15:30 at Samgakbong shelter |
| Eorimok and Yeongsil | 12:00 | 15:00 at Witse-oreum |
Weather warnings for heavy rain, heavy snow or typhoons close trails partly or fully, so check the park’s website on the morning of your hike. The park asks winter hikers to carry crampons, gloves, warm clothes and a hot drink.
What should you not miss in Jeju?
| Sight | Adult entry (2026) | Tip |
|---|---|---|
| Seongsan Ilchulbong (Sunrise Peak) | 5,000 won | Closed on the first Monday of the month; Nov–Feb hours 06:00–18:00, tickets until 17:00; 30 to 40 minutes to the crater rim |
| Manjanggul lava tube | 4,000 won | Reopened on 30 May 2026 after a rockfall closure; about 1 km open, ending at a lava column about 7.6 m tall; closed the first Wednesday of the month |
| Hallasan | Booking required for the summit | See the section above |
| Jeju Olle walking routes | Free | Route 1 passes Seongsan Ilchulbong |
- Seongsan Ilchulbong is a UNESCO-listed tuff cone formed by an eruption in shallow sea. The free lower paths around its base suit anyone who skips the stairs.
- Manjanggul opens 09:00 to 18:00 with last entry at 17:00. A new walkway now runs the full open section, and the cave stays cool year-round, so bring a layer.
- Food: eat at the traditional markets and seafood restaurants by the harbours, and try the island’s black pork and citrus in winter.
What goes wrong in Jeju?
- Turning up at Hallasan late. In winter the gate shuts at 11:30, and the rangers enforce it.
- Assuming the summit is always open. Snow and wind warnings close the top regularly in winter; have a lower-trail plan.
- Booking Hallasan and not going. Cancel online before your slot, or face a three-month ban.
- Trying the Jeju visa-free rule with a connection. Jeju has its own 30-day visa-free entry for many passports that would otherwise need a Korean visa, but Korea’s consulates say it applies only when you fly directly to Jeju from abroad: changing planes at Incheon or Gimpo means you need a visa. Not every nationality qualifies, so check with a Korean embassy. Most Western travellers do not need it at all: the K-ETA exemption runs until 31 December 2026. See our South Korea K-ETA and entry guide.
- Landing without data. Bus apps and maps need it: see our South Korea eSIM guide.
- Activate before you fly: data works on arrival
- Plans for 200+ countries from a few dollars
- Keep your number; no physical SIM swap
How many days do you need in Jeju?
Three to five days covers the island: one day for Hallasan, one for the east with Seongsan Ilchulbong and Manjanggul, one for Seogwipo and the south coast, and a spare day for the weather. Jeju pairs naturally with Seoul, a short flight away, and Busan; our South Korea itinerary shows how to fit it in, and the South Korea budget guide covers daily costs.
Frequently Asked Questions
What is the best time to visit Jeju?
April to May and September to November are the most comfortable months for hiking and the coast. Winter is mild for Korea: the Korea Meteorological Administration’s normals put the island’s December to February average at about 7.2°C, with highs around 10.4°C. Summer is hot and wet, with July averaging about 231 mm of rain, and Jeju sits on the path of the monsoon front and passing typhoons.
Do I need a reservation to climb Hallasan?
Only to reach the summit, Baengnokdam. The Seongpanak and Gwaneumsa trails, the two that go to the top, need a booking on the Hallasan reservation website, with daily caps of 1,000 and 500 hikers. Since May 2025 you can walk to the Jindallaebat shelter or Samgakbong shelter without one, and the Eorimok and Yeongsil trails need no booking.
Can you hike Hallasan in winter?
Yes, with an early start. From 1 October to 31 March you must pass the Seongpanak or Gwaneumsa trailhead by 11:30 and start down from the summit by 13:30, and Eorimok and Yeongsil close to new hikers at 12:00. Heavy snow, rain or typhoon warnings close trails partly or fully, and the park asks winter hikers to carry crampons, gloves and warm clothes.
How much does Seongsan Ilchulbong cost?
Adults pay 5,000 won and youths and children 2,500 won, according to Visit Jeju. From November to February it opens 06:00 to 18:00 with ticket sales until 17:00, and it closes on the first Monday of each month. The climb to the crater rim usually takes about 30 to 40 minutes.
Do you need a car in Jeju?
Not for Jeju City, Seogwipo and the main sights, which island buses reach for 1,150 won by card on regular routes. A car helps for the inland oreum, the west coast and early Hallasan starts. To rent one, bring your home licence, your passport and an International Driving Permit issued under the Geneva or Vienna convention.
How many days do you need in Jeju?
Three to five days covers the island: one day for Hallasan, one for the east with Seongsan Ilchulbong and Manjanggul, one for Seogwipo’s waterfalls and coast, and a spare day for the weather, which closes trails and grounds boats more often than on the mainland. Add a day if you are driving the west coast too.
Start planning your Jeju trip
If a package already includes your flights and transfers, you can skip this part. If you’re booking separately, compare a few dates in autumn and winter first, and book Hallasan as soon as your month opens.
Find cheap flights to Jeju | Compare Jeju hotel prices
Planning the wider trip? See our South Korea travel guide, Seoul, Busan and the hotels hub.
