Faslane (GBFAS) — marine weather & port guide
Faslane is a port in United Kingdom at 56°4.0′N 4°49.0′W. Today (Aug 3): ESE wind 5–8 kn, waves 0.5–0.7 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 | 56°4.0′N 4°49.0′W |
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| UN/LOCODE | GBFAS |
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| Time zone | Europe/London |
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10-day marine forecast — Faslane
| Date | Wind | Gusts | Waves |
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| ESE 5–8 kn | 20 kn | 0.5–0.7 m |
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| SE 3–13 kn | 32 kn | 0.4–0.7 m |
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| WSW 2–10 kn | 26 kn | 0.5–1.6 m |
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| WNW 7–10 kn | 25 kn | 0.5–1.2 m |
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| SW 3–10 kn | 15 kn | 0.6–1.5 m |
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| S 7–13 kn | 16 kn | 1.6–2.5 m |
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| SW 5–10 kn | 13 kn | 1.7–1.8 m |
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| WSW 14–14 kn | 36 kn | 1.8–1.8 m |
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| SSW 7–7 kn | 20 kn | 0.9–0.9 m |
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| S 8–8 kn | 23 kn | 1.7–1.7 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 Faslane right now?
As of the ECMWF IFS run 2026-08-03 12z: ESE wind 5–8 kn, waves 0.5–0.7 m. The 10-day outlook is in the forecast table on this page and updates with each model cycle.