Coast and city
Check the forecast for the area you are visiting, such as Jeju City, Seogwipo, Seongsan or Gosan. On the coast, look at wind conditions as well as temperature.
Korea Meteorological Administration: Weather Nuri ↗WEATHER & SEASONS
Plan Around Jeju's Weather
Even when Jeju City is sunny, conditions on Hallasan and the south coast can be different. Check the weather separately for where you are staying and where you plan to visit.
Travel planning at a glance
Check the weather separately for where you are staying and the area you plan to visit. Distinguish coastal and city forecasts from Hallasan mountain weather and trail restrictions. For ferries and marine activities, check the operator's departure or activity updates for the day as well as the forecast.
Check official live services for forecasts and weather alerts.
This page does not show live temperatures or the chance of rain. For ferries and flights, check the operator's departure information as well as the weather forecast.
Hallasan and oreum volcanic hills
Check mountain weather, weather alerts and national park trail restrictions together. Do not assume that summit conditions are the same as those in the city.
Hallasan trail restrictions ↗Ferries and marine activities
Rough seas and local conditions can lead to changes. Check your return ferry from the island and the operator's departure and cancellation notices.
Ferry information by island →Adjust your plans when the weather changes
First check the forecast for the area you plan to visit, along with the day's weather and access restrictions. If rain or strong winds make outdoor plans difficult, combine nearby indoor visits with time to rest. Check operator updates again for changes to booked activities and your return transport.
Rainy days
Combine indoor visits, such as Jeju National Museum, the Haenyeo Museum or Jeju 4·3 Peace Memorial Hall, with a meal or café in the same area. Check closure days and whether reservations are needed, even for indoor venues.
Find museums →Windy days
Before visiting oreum summits or coastal cliffs, or taking a boat trip, check guidance from the organization responsible. If you have already set out, make sure you have return transport and follow restrictions on site.
Compare indoor activities too →What to prepare for each season
Spring and autumn
Bring a windproof outer layer for walks. For the condition of flowers and silver grass, check recent local updates.
Summer
Check whether beaches are open and which areas allow swimming. Photos of the sea do not show whether swimming is currently permitted.
Winter
Snow, ice and access restrictions can change hiking plans. Check the equipment you need and trail conditions, and prepare an alternative itinerary.
Korea Meteorological Administration ↗ · VisitJeju — Jeju Tourism Organization ↗. The suggested plans for different weather conditions are editorial guidance.
Frequently asked travel questions
Does clear weather in Jeju City mean good weather on Hallasan?
Weather in the city and at the summit can differ. Check mountain weather, weather alerts and the national park's live trail restrictions. Do not decide whether you can hike based only on a coastal city's forecast.
How can I adjust my plans when it rains in Jeju?
Combine indoor visits, such as Jeju National Museum, the Haenyeo Museum or Jeju 4·3 Peace Memorial Hall, with a meal or café in the same area. Check closure days and whether reservations are needed, even for indoor venues.
Does this page show current temperatures or flight and ferry cancellations?
This page does not display live temperatures or cancellation updates. Check forecasts and weather alerts with the Korea Meteorological Administration, and confirm whether your flight or ferry is departing with the airline or ferry operator.