The Shipping Forecast Explained: Sea Areas Map, Times and How to Understand It

Ultimo aggiornamento: 22 ottobre 2026

Few radio broadcasts are as loved as the BBC Shipping Forecast. Its calm, rhythmic list of sea areas, from Viking to Southeast Iceland, has been part of British life for over a century. But it is not just poetry: it is a vital safety service for anyone at sea around the British Isles, from fishermen to the crews of the container ships we sail on.

What is the Shipping Forecast?

The Shipping Forecast is a weather forecast for the seas around the UK and Ireland. It is produced by the Met Office on behalf of the Maritime and Coastguard Agency and broadcast on BBC Radio 4. It covers the next 24 hours, with an outlook beyond.

Waves and sea foam on the ocean surface
The forecast warns of gales and rough seas around the British Isles.

The 31 sea areas

The waters around the British Isles are divided into 31 sea areas, read in a set order, roughly clockwise:

  • North Sea: Viking, North Utsire, South Utsire, Forties, Cromarty, Forth, Tyne, Dogger, Fisher, German Bight, Humber, Thames
  • English Channel: Dover, Wight, Portland, Plymouth
  • South-west approaches: Biscay, Trafalgar, FitzRoy, Sole, Lundy, Fastnet
  • Irish Sea and west: Irish Sea, Shannon, Rockall, Malin, Hebrides, Bailey
  • North: Fair Isle, Faeroes, Southeast Iceland

Trafalgar is usually included only in the late-night broadcast. FitzRoy was called Finisterre until 2002, renamed in honour of Admiral Robert FitzRoy, founder of the Met Office.

When is the Shipping Forecast broadcast?

It is broadcast several times a day on BBC Radio 4. The most famous edition is the late-night broadcast at about 00:48, introduced by the tune “Sailing By”. There is also an early-morning edition at about 05:20. Daytime broadcast times can change, so check the BBC schedule. The full forecast is also published on the Met Office website.

Dramatic seascape with a wide horizon
The sea areas stretch from Southeast Iceland to Trafalgar.

How to understand the Shipping Forecast

Each area forecast follows the same pattern:

ElementExampleMeaning
Wind“Southwest 5 to 7”Direction the wind blows from, and its Beaufort force
Sea state“Moderate or rough”Wave conditions
Weather“Rain then showers”Rain, fog, snow and so on
Visibility“Good, occasionally poor”How far you can see

Key terms:

  • Gale warning: winds of force 8 or more are expected
  • Imminent: within 6 hours; soon: 6–12 hours; later: more than 12 hours
  • Veering: the wind changes direction clockwise; backing: anticlockwise
  • Visibility: good is more than 5 nautical miles, poor is 1,000m to 2 nautical miles, and fog is less than 1,000m

The Beaufort scale (simplified)

ForceDescriptionSea
0–3Calm to gentle breezeSmooth to slight
4–5Moderate to fresh breezeModerate waves
6–7Strong wind to near galeRough, foam streaks
8–9Gale to severe galeHigh waves, spray
10–12Storm to hurricane forceVery high to phenomenal

Why it matters to freighter passengers

Container ships handle rough weather far better than small boats, but forecasts still shape their speed and routing. On a voyage from Liverpool, Southampton or London Gateway, you may hear the officers discuss the forecast for Irish Sea, Lundy or Dover as you sail out. Read seasickness on a cargo ship e freighter travel from the UK.

Domande frequenti

What are the Shipping Forecast areas?

There are 31 sea areas around the British Isles, from Viking and the Utsires in the North Sea to Biscay, Trafalgar, Rockall and Southeast Iceland.

What time is the Shipping Forecast on?

The best-known broadcast is at about 00:48 on BBC Radio 4, with another at about 05:20. Daytime times can vary.

What does ‘gale warning’ mean?

Winds of force 8 or more on the Beaufort scale are expected in that sea area.

Who produces the Shipping Forecast?

The Met Office, on behalf of the Maritime and Coastguard Agency, broadcast by the BBC.

Why was Finisterre renamed FitzRoy?

In 2002, to avoid confusion with a Spanish area of the same name and to honour Met Office founder Robert FitzRoy.

Hear the sea areas come alive

Sail out of a UK port on a container ship and see the forecast in action.

Ask about freighter voyages →
Seguimi

Steve Joury

Consulente di viaggio Cargo at Cargoholidays
Appassionato di viaggi lenti e di mare. Steve conosce la maggior parte delle rotte di navigazione e le procedure per scoprire il nostro bellissimo mondo dal mare su una nave container. Ha partecipato a molti viaggi, da 7 giorni di viaggio in cargo a 140 giorni a bordo.
Steve Joury
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