Sea Crossings State of Sea until 19 Oct 2017 - 00:00

Dublin - Holyhead

High or very high, decreasing to moderate Tuesday, later slight

Rosslare - South Wales

High to very high, decreasing to moderate on Tuesday, later slight to moderate

Cork - South Wales

Very high, decreasing to moderate on Tuesday, later slight

Rosslare - France

High to very high, decreasing mostly moderate later Tuesday, later slight

Cork - France

High to very high, decreasing mostly moderate later Tuesday