Princetown — marine weather & port guide
Princetown is a port in United States at 37°30.0′N 122°29.0′W. Today (Aug 3): W wind 0–6 kn, waves 3.0–3.5 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 | 37°30.0′N 122°29.0′W |
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| Harbor size | Very small |
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| Harbor type | Coastal breakwater harbor |
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| Shelter | Good |
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| Tide range | 1 m |
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| Time zone | America/Los_Angeles |
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10-day marine forecast — Princetown
| Date | Wind | Gusts | Waves |
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| W 0–6 kn | 18 kn | 3.0–3.5 m |
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| WNW 0–5 kn | 15 kn | 2.3–2.9 m |
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| NW 0–5 kn | 17 kn | 1.6–2.1 m |
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| WNW 0–6 kn | 17 kn | 1.3–1.5 m |
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| NW 0–5 kn | 17 kn | 1.1–1.4 m |
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| S 0–5 kn | 6 kn | 1.5–1.6 m |
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| SW 1–5 kn | 6 kn | 2.3–3.0 m |
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| S 2–2 kn | 6 kn | 3.2–3.2 m |
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| W 1–1 kn | 7 kn | 2.9–2.9 m |
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| W 0–0 kn | 3 kn | 3.1–3.1 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 Princetown right now?
As of the ECMWF IFS run 2026-08-03 12z: W wind 0–6 kn, waves 3.0–3.5 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 Princetown?
Princetown is classed as a very small harbor (coastal breakwater harbor), with good shelter in the NGA World Port Index.