Cheju Hang marine weather forecast
Cheju Hang is a port in South Korea at 33°31.0′N 126°32.0′E. Today (Sep 17): NE wind 10–14 kn, waves 0.3–0.4 m, from the ECMWF IFS run 2026-09-17 12z. The live chart on this page shows current conditions and plans weather-optimized departures from this harbor.
Port facts (NGA World Port Index)| Position | 33°31.0′N 126°32.0′E |
|---|
| Harbor size | Small |
|---|
| Harbor type | Coastal breakwater harbor |
|---|
| Shelter | Good |
|---|
| Channel depth | 8 m |
|---|
| Anchorage depth | 6 m |
|---|
| Tide range | 2 m |
|---|
| Time zone | Asia/Seoul |
|---|
Facilities & services (NGA World Port Index)| Tugs | Assistance available |
|---|
| Supplies | Fuel oil, water |
|---|
| Repairs | Limited |
|---|
| Medical facilities | Available |
|---|
10-day marine forecast — Cheju Hang
| Date | Wind | Gusts | Waves |
|---|
| NE 10–14 kn | 18 kn | 0.3–0.4 m |
|---|
| NE 6–13 kn | 19 kn | 0.3–0.4 m |
|---|
| N 3–13 kn | 17 kn | 0.2–0.4 m |
|---|
| N 4–19 kn | 25 kn | 0.2–0.8 m |
|---|
| N 7–17 kn | 22 kn | 0.3–0.6 m |
|---|
| SE 5–10 kn | 13 kn | 0.2–0.3 m |
|---|
| NE 6–10 kn | 12 kn | 0.2–0.3 m |
|---|
| NE 10–10 kn | 16 kn | 0.3–0.3 m |
|---|
| ESE 10–10 kn | 18 kn | 0.3–0.3 m |
|---|
| N 15–15 kn | 27 kn | 0.8–0.8 m |
|---|
Forecast from the ECMWF IFS model run , waves from ECMWF WAM. Updated with each model cycle; the live chart below recalculates for your departure time and vessel.
What to watch in the forecast
Across the loaded 10-day outlook, the strongest daily modeled wind reaches 19 kn on Sep 20. The highest modeled significant wave height is 0.8 m on Sep 20. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Cheju Hang right now?
As of the ECMWF IFS run 2026-09-17 12z: NE wind 10–14 kn, waves 0.3–0.4 m. The 10-day outlook is in the forecast table on this page and updates with each model cycle.
How big is the harbor at Cheju Hang?
Cheju Hang is classed as a small harbor (coastal breakwater harbor), with good shelter in the NGA World Port Index.
How deep is the approach to Cheju Hang?
Per the NGA World Port Index, the entrance channel carries about 8 m and anchorage depths run about 6 m. Verify against current official charts before entry.
What restricts entry to Cheju Hang?
Entry is affected by tidal windows. Check the live forecast on this page and official notices before approach.