What changed
A typhoon warning takes effect for Jeju, Busan and Ulsan from 06:00 on 4 August 2026. Sustained winds of 25 metres per second and rainfall above 200 millimetres are expected over 2 days. All ferry services to Jeju are suspended, and coastal flights may be cancelled at short notice.
Key details
- Warning level: warning for Jeju, Busan, Ulsan (effective 2026-08-04 KST)
What you need to do
- Check the official notice linked below before you travel.
- Compare your own travel dates against the effective date given above, in KST.
- Allow extra time at the airport or station on the first affected day.
Where to check
Korea Meteorological Administration publishes this change on its own site first, and aggregator pages often lag behind it by a day or more. If your plans depend on the detail, open the source listed with this article rather than relying on a summary. Where an announcement affects transport, cancellations are published separately from the policy notice, so check both.