Sea Area Forecast
Forecast valid from: 11:25, Friday 04 September 2026 until 12:00, Saturday 05 September 2026
Small Craft Warning
Westerly winds will reach force 6 or higher at times this afternoon and evening on Irish coasts from Valentia to Rossan Point to Howth Head.
Westerly winds will reach force 6 at times tonight (Friday night) on Irish coasts from Erris Head to Fair Head to Howth Head.
Gale Warning
nil
Meteorological Situation at 09:00 UTC
A depression of 986hPa, centred between Iceland and Scotland, generates a strong to near gale force west to northwesterly airflow over the country. As this low pressure area tracks towards Norway, the airflow will gradually moderate. A weak ridge of high pressure will build over Ireland for a time, before a warm front approaches the southwest coast later.
Small Craft Warning: In effect
Heavy Swell (>4m) : No
Forecast for Erris Head to Bloody Foreland to Fair Head
Wind: Westerly force 6 or 7 and gusty. Soon decreasing force 5 or 6. Further decreasing west to southwest force 4 later.
Weather: Fair with scattered squally showers, becoming isolated later.
Visibility: Mostly good. Decreasing moderate or poor in showers.
Forecast for Fair Head to Carlingford Lough to Wicklow Head and for the North Irish Sea
Wind: West force 5 to 7 and gusty. Later decreasing force 5 or 6.
Weather: Fair with scattered squally showers, becoming isolated later.
Visibility: Mostly good. Decreasing moderate or poor in showers.
Forecast for Wicklow Head to Mizen Head to Erris Head and for the South Irish Sea
Wind: Westerly force 5 or 6 and gusty. Later decreasing southwest to west force 3 or 4. Backing southerly later and increasing force 4 or 5 in the southwest.
Weather: Fair with scattered showers imminent, becoming isolated later. Becoming cloudy by the end of the period with mist, fog and drizzle developing in the southwest.
Visibility: Mostly good. Decreasing moderate or poor in precipitation, mist and fog.
Outlook for a further 24 hours until 12:00, Sunday 06 September 2026
Moderate to fresh southeast winds, veering south, will increase strong to near ale force at times on Atlantic coasts. Winds will become generally fresh to strong southerly later, reaching gale or near gale force at times in the west, north and northeast. Becoming mostly cloudy with occasional rain and drizzle, some mist and fog patches also.
Forecast issued at: 11:25, Friday 04 September 2026
All times are local unless specified
