Around the British Isles, the forecast for a harbour, inshore waters and the Shipping Forecast sea area have different scales. A Channel or Irish Sea crossing also needs tide, current and traffic information beyond the weather bulletin.
Official marine-weather sources
Start with the Met Office inshore waters forecast for nearshore legs and the Shipping Forecast sea-area guide for the wider area and gale warnings. For a French arrival add Météo-France marine. Match the named area and bulletin validity.
Check before a passage
- Identify inshore, offshore and destination products separately; do not extrapolate a city forecast.
- Compare wind against tide or current, sea state and visibility at the exposed passage time.
- Check gale warnings, port approach information and a diversion before a night or cross-Channel leg.
What this page does not do
A weather window does not remove tidal, charting or shipping-lane obligations. This page is not a pilotage plan.
This is not a live forecast or a personal route recommendation. Before departure, check current warnings, issue time and zone boundaries at the original source. AI-assisted and expert personal briefings are in development.
Back to the parent sailing area
Sources checked: 24 September 2026.