Coast and sea

Inshore waters and strong winds

General situation

A ridge of high pressure will decline as an easterly flow becomes established across the United Kingdom. Light or moderate winds for most areas on Monday will then strengthen, becoming fresh to strong especially in the south on Tuesday. Some showers are expected, mainly for eastern waters, but otherwise mainly fair conditions will dominate.

Issued at:

For coastal areas up to 12 miles offshore for the period to

Inshore waters forecast and strong winds map

Cape Wrath to Rattray Head including Orkney (1)

24 hour forecast:

Wind
North or northwest veering east, 3 to 5.
Sea state
Smooth or slight until later in Moray Firth, otherwise slight or moderate.
Weather
Occasional rain or showers, fair later.
Visibility
Moderate or good, occasionally poor.

Outlook for the following 24 hours:

Wind
East or northeast 2 to 4, occasionally 5 at first.
Sea state
Slight or moderate, occasionally smooth later.
Weather
Fair.
Visibility
Good.

Rattray Head to Berwick upon Tweed (2)

24 hour forecast:

Wind
Northwesterly 4 or 5 at first in north, otherwise variable 2 to 4, becoming easterly 3 to 5.
Sea state
Smooth or slight, becoming moderate later.
Weather
Occasional rain or showers.
Visibility
Moderate or good.

Outlook for the following 24 hours:

Wind
Easterly backing northeasterly, 3 or 4, occasionally 5 in south.
Sea state
Slight or moderate.
Weather
Showers at first.
Visibility
Good.

Berwick upon Tweed to Whitby (3)

24 hour forecast:

Wind
Variable 3 or less, becoming east 2 to 4, occasionally 5 later.
Sea state
Slight, becoming moderate later.
Weather
Showers.
Visibility
Good, occasionally moderate.

Outlook for the following 24 hours:

Wind
East or northeast 3 to 5.
Sea state
Moderate.
Weather
Showers at first.
Visibility
Good.

Whitby to Gibraltar Point (4)

24 hour forecast:

Wind
Variable 3 or less, becoming east or northeast 3 or 4, occasionally 5 later.
Sea state
Slight, becoming moderate later.
Weather
Showers, fair later.
Visibility
Good.

Outlook for the following 24 hours:

Wind
East or northeast 3 to 5.
Sea state
Moderate.
Weather
Fair.
Visibility
Good.

Gibraltar Point to North Foreland (5)

Strong winds are forecast

24 hour forecast:

Wind
Northerly 3 or 4, veering northeasterly 4 or 5, occasionally 6 later.
Sea state
Slight or moderate, occasionally smooth at first.
Weather
Showers, fair later.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Easterly or northeasterly 4 to 6.
Sea state
Moderate occasionally slight.
Weather
Fair.
Visibility
Good.

North Foreland to Selsey Bill (6)

Strong winds are forecast

24 hour forecast:

Wind
Easterly or northeasterly, veering southeasterly for a time at first in west, 3 or 4, increasing 4 to 6.
Sea state
Smooth or slight becoming slight or moderate.
Weather
Showers until later in east.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Easterly or northeasterly 5 or 6, occasionally 4 at first.
Sea state
Slight or moderate.
Weather
Fair.
Visibility
Good.

Selsey Bill to Lyme Regis (7)

Strong winds are forecast

24 hour forecast:

Wind
East or northeast, veering southeast for a time at first, 3 to 5, occasionally 6 later.
Sea state
Smooth or slight becoming slight or moderate.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
East or northeast 5 or 6, occasionally 4 near shore and 7 later offshore.
Sea state
Slight or moderate, occasionally rough later in west.
Weather
Fair.
Visibility
Good.

Lyme Regis to Lands End including the Isles of Scilly (8)

Strong winds are forecast

24 hour forecast:

Wind
Easterly or southeasterly 4 to 6, occasionally 7 later.
Sea state
Slight or moderate, becoming moderate or rough later in west.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Easterly or northeasterly 5 to 7, occasionally gale 8 in south.
Sea state
Moderate or rough, occasionally very rough later in far west.
Weather
Fair.
Visibility
Good.

Lands End to St Davids Head including the Bristol Channel (9)

Strong winds are forecast

24 hour forecast:

Wind
Easterly or northeasterly 3 to 5, becoming variable 2 to 4 for a time except in far south, occasionally 6 later.
Sea state
Slight, occasionally smooth in Bristol Channel and moderate in southwest, becoming slight or moderate later.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Easterly or northeasterly 4 to 6, occasionally 7 later.
Sea state
Slight or moderate, occasionally rough near Lands End.
Weather
Fair.
Visibility
Good.

St Davids Head to Great Orme Head, including St Georges Channel (10)

24 hour forecast:

Wind
Variable becoming east or northeast, 2 to 4, increasing 4 or 5 later.
Sea state
Smooth or slight.
Weather
Mainly fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
East or northeast 4 to 6, occasionally 7 later near St Davids Head.
Sea state
Smooth or slight, becoming moderate at times mainly in west.
Weather
Fair.
Visibility
Good.

Great Orme Head to the Mull of Galloway (11)

24 hour forecast:

Wind
Variable 3 or less, becoming northeast 2 to 4, veering east 4 or 5 later.
Sea state
Smooth, becoming slight at times.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
East or northeast 4 to 6, occasionally 3 at first.
Sea state
Smooth or slight, occasionally moderate later in west.
Weather
Fair.
Visibility
Good.

Isle of Man (12)

24 hour forecast:

Wind
Variable 2 or 3, becoming easterly 3 or 4, increasing 4 or 5 later.
Sea state
Smooth or slight, becoming slight or moderate later.
Weather
Fair.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Easterly 4 or 5, occasionally 6 later in south.
Sea state
Slight or moderate.
Weather
Fair.
Visibility
Good.

Lough Foyle to Carlingford Lough (13)

24 hour forecast:

Wind
Variable mainly north, 2 to 4, becoming east 4 or 5 later.
Sea state
Smooth or slight, occasionally moderate in far north and also later in far south.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
East or northeast 3 to 5, increasing 5 or 6 later.
Sea state
Slight occasionally moderate.
Weather
Showers at first.
Visibility
Good.

Mull of Galloway to Mull of Kintyre including the Firth of Clyde and North Channel (14)

24 hour forecast:

Wind
Variable 2 to 4, becoming easterly or northeasterly 4 or 5 later.
Sea state
Smooth or slight.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours:

Wind
Easterly or northeasterly 4 to 6, occasionally 3 at first.
Sea state
Smooth or slight, becoming slight or moderate in North Channel.
Weather
Showers at first.
Visibility
Good.

Mull of Kintyre to Ardnamurchan Point (15)

Strong winds are forecast

24 hour forecast:

Wind
Northerly or northeasterly, becoming variable for a time in east, 2 to 4, occasionally 5 in west, veering easterly 4 to 6 later.
Sea state
Slight or moderate, occasionally smooth in sheltered east.
Weather
Showers.
Visibility
Good, occasionally moderate later.

Outlook for the following 24 hours:

Wind
Easterly or northeasterly 3 to 5, increasing 6 at times in south.
Sea state
Slight or moderate, occasionally smooth in sheltered east.
Weather
Mainly fair.
Visibility
Good.

The Minch (16)

24 hour forecast:

Wind
North veering east or northeast, 3 to 5.
Sea state
Slight or moderate, occasionally smooth near skye.
Weather
Showers.
Visibility
Good, occasionally moderate at first.

Outlook for the following 24 hours:

Wind
East or northeast 3 to 5.
Sea state
Smooth or slight, occasionally moderate at first near entrances.
Weather
Showers at first.
Visibility
Good.

Ardnamurchan Point to Cape Wrath (17)

Strong winds are forecast

24 hour forecast:

Wind
Northerly 3 to 5, veering easterly or northeasterly 4 or 5, occasionally 6 in north.
Sea state
Moderate, occasionally slight between barra and canna and also later near Sutherland.
Weather
Showers.
Visibility
Good, occasionally moderate at first.

Outlook for the following 24 hours:

Wind
Easterly or northeasterly 3 to 5.
Sea state
Slight or moderate.
Weather
Showers at first.
Visibility
Good.

Shetland Isles (18)

24 hour forecast:

Wind
East 2 to 4, occasionally 5 at first, becoming variable 3 or less later, then northeast 2 to 4 later.
Sea state
Moderate, occasionally slight in east.
Weather
Showers at first.
Visibility
Good, occasionally moderate at first.

For Coastal areas up to 60 nautical miles from Lerwick, Shetland (18)

Strong wind warning

Valid Monday 20 Apr 2026 at 0600 UTC until Monday 20 Apr 2026 at 1800 UTC

General situation

Low pressure over Shetland Waters moves to the east with high pressure building from the north later Monday.

Forecast

Wind
East or southeast 3 to 5 becoming variable 2 or 3 in northeast later
Sea state
Moderate, but slight east of shetland and rough in west at first
Weather
Showers at first then fair
Visibility
Good, occasionally moderate at first

Outlook for 12 Hours from 1800 UTC on Monday 20 Apr until 0600 UTC on Tuesday 21 Apr

Wind
Cyclonic 4 or less becoming north or northeast
Sea state
Slight or moderate
Weather
Fair
Visibility
Good

Channel Islands (19)

Strong winds are forecast

24 hour forecast:

Wind
East to northeast 4 to 5, increasing 5 to 6 by evening.
Sea state
Smooth to slight, increasing slight to moderate by evening, further increasing rather rough in the northwest by midnight.
Weather
Fair or fine.
Visibility
Good or very good.

Outlook for the following 24 hours:

Wind
East 5 to 6, occasionally 7 mid-channel in the afternoon and evening, then generally 6 to 7 after midnight.
Sea state
Slight in the far southeast, moderate to rather rough elsewhere, increasing rough in the far north by evening.
Weather
Fair or fine.
Visibility
Good.

The inshore waters forecast information

Forecasts for UK inshore waters are issued four times a day and cover a period of 24 hours from 0000, 0600, 1200 and 1800 UTC.

The coastal waters around the British Isles are divided into 19 areas which extend up to 12 nautical miles offshore.

The forecast contains details of wind direction and force, sea state, weather and visibility.

Strong coastal winds (force 6 or more) are displayed for the first 24 hours of the inshore waters forecast.

Marine forecasts disclaimer

In the UK, the Maritime & Coastguard Agency (MCA) is responsible for the provision of Maritime Safety Information (MSI) to ships at sea, which includes the broadcast of warnings and forecasts. The Met Office initiates warnings and prepares routine forecasts for dissemination on behalf of the MCA.

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