Weather & Tides
Dún Laoghaire Harbour Weather Station – live weather from the meteorological station on the ferry terminal roof.
WindGuru weather for Dun Laoghaire (be aware that if you use the free version the forecast may be a number of hours our of date).
Met Eireann (www.weather.ie) – the Irish National Meteorological Service, and is the leading provider of weather information and related services for Ireland. It also supplies the Sea Area Forecast. Dun Laoghaire lies between Howth Head and Wicklow Head on the accompanying map.
Dublin Bay is subject to tide and although the speed of the current is not excessive, it is often of tactical importance. The current flow is simple and well documented.
The tide turns at Dún Laoghaire harbour approx 4 minutes before high/low water at the North Wall in Dublin Port. The main flow in the Irish Sea is to flood North and ebb South, and the complex streams within the bay also follow this basic principal.
Tide tables and tactical charts will be supplied to all competitors on registration. The depth of water in the racing area is 5-12 metres
You can download the above guide to the Tidal Stream Data High Res (produced by Dun Laoghaire Harbour Company), as well as a detailed guide to the Submarine Morphology of Dublin Bay by A Dowling (deceased).