Su-Ao — marine weather & port guide
Su-Ao is a port in Taiwan at 24°36.0′N 121°52.0′E. Today (Aug 3): E wind 14–16 kn, waves 0.8–1.0 m, from the ECMWF IFS run 2026-08-03 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 | 24°36.0′N 121°52.0′E |
|---|
| Harbor size | Medium |
|---|
| Harbor type | Coastal breakwater harbor |
|---|
| Shelter | Good |
|---|
| Channel depth | 14 m |
|---|
| Anchorage depth | 20 m |
|---|
| Tide range | 2 m |
|---|
| Pilotage | Compulsory |
|---|
| Time zone | Asia/Taipei |
|---|
10-day marine forecast — Su-Ao
| Date | Wind | Gusts | Waves |
|---|
| E 14–16 kn | 21 kn | 0.8–1.0 m |
|---|
| ENE 6–14 kn | 19 kn | 1.0–1.2 m |
|---|
| NNE 5–9 kn | 13 kn | 1.2–1.6 m |
|---|
| NNW 5–13 kn | 17 kn | 1.9–2.7 m |
|---|
| W 15–29 kn | 36 kn | 3.0–5.0 m |
|---|
| WSW 30–33 kn | 42 kn | 5.5–5.9 m |
|---|
| SW 34–40 kn | 50 kn | 3.4–5.3 m |
|---|
| SW 23–23 kn | 32 kn | 2.5–2.5 m |
|---|
| S 3–3 kn | 11 kn | 1.6–1.6 m |
|---|
| S 4–4 kn | 17 kn | 1.4–1.4 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.
Frequently asked
How is the weather at Su-Ao right now?
As of the ECMWF IFS run 2026-08-03 12z: E wind 14–16 kn, waves 0.8–1.0 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 Su-Ao?
Su-Ao is classed as a medium harbor (coastal breakwater harbor), with good shelter in the NGA World Port Index.
How deep is the approach to Su-Ao?
Per the NGA World Port Index, the entrance channel carries about 14 m and anchorage depths run about 20 m. Verify against current official charts before entry.