Guiuan (PHGUN) — marine weather & port guide
Guiuan is a port in Philippines at 11°2.0′N 125°43.0′E. Today (Aug 3): WSW wind 7–10 kn, waves 1.2–1.3 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 | 11°2.0′N 125°43.0′E |
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| UN/LOCODE | PHGUN |
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| Harbor size | Very small |
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| Harbor type | Coastal natural harbor |
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| Shelter | Fair |
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| Channel depth | 23 m |
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| Anchorage depth | 19 m |
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| Tide range | 2 m |
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| Pilotage | Advisable |
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| Time zone | Asia/Manila |
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10-day marine forecast — Guiuan
| Date | Wind | Gusts | Waves |
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| WSW 7–10 kn | 13 kn | 1.2–1.3 m |
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| SW 8–13 kn | 17 kn | 1.4–1.5 m |
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| SW 13–17 kn | 23 kn | 1.6–1.9 m |
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| WSW 15–17 kn | 23 kn | 2.0–2.1 m |
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| SW 12–15 kn | 21 kn | 1.9–2.1 m |
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| SSW 14–18 kn | 23 kn | 2.0–2.2 m |
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| SSW 15–20 kn | 24 kn | 1.8–2.3 m |
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| SSW 11–11 kn | 20 kn | 1.5–1.5 m |
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| SSW 8–8 kn | 16 kn | 1.3–1.3 m |
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| SW 10–10 kn | 21 kn | 1.2–1.2 m |
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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 Guiuan right now?
As of the ECMWF IFS run 2026-08-03 12z: WSW wind 7–10 kn, waves 1.2–1.3 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 Guiuan?
Guiuan is classed as a very small harbor (coastal natural harbor), with fair shelter in the NGA World Port Index.
How deep is the approach to Guiuan?
Per the NGA World Port Index, the entrance channel carries about 23 m and anchorage depths run about 19 m. Verify against current official charts before entry.