The Internet is full of sites offering weather information and forecasts. Here are just a few but most have links to other sites:

www.meto.gov.uk

http://www.predictwind.com/home.shtml
Currently a free service until January 2009. Gives a 1 and 5 day forcast of Wind, Waves and weather. Very comrenensive.

http://www.metoffice.gov.uk/weather/marine/index.html UK Shipping inshore and offshore forecasts.

www.metcheck.com Met Office 2-day forecasts by county or shire. Also European and Australian forcasts.

http://met.no/english/index.html The Norwegian Met Office shipping forecast in English

www.dmi.dk/eng/index/forecasts.htm Danish Met Office shipping forecast in English

www.knmi.nl Dutch weather service site: mostly in Dutch

www.meteo.oma.be

Belgium weather service: click on welcome and then on forecasts

www.meteo.fr
French weather service. Under 'nos previsions'
look for 'par activité, click on 'mer, click on 'mite'  
and then on appropriate inshore area for forecast

http://buoyweather.com/index.jsp

Worldwide weather buoys including those round European coasts for current weather and that for the last 24 hours

http://www.metoffice.gov.uk/weather/uk/surface_pressure.html
Synoptic charts for 84 hours From the Met Office. Normally the update is at 0730 hours

http://www.meteoconsult.fr/mar/cotiere/sommaire_cotiere.php?langue=fr Current coastal forcast for French Coastal regions. Animated for 24 Hours . Pay a subscription and you get the next 5 days forcast.
http://www.meteox.com/h.aspx?r=&jaar=-3&soort=loop1uur
European Rain Radar. Also available as a 'gadget' on the Vista sidebar.

http://www.xcweather.co.uk/
A very graphical wind forcast for the main european countries. Gives a 5 day forcast.
http://www.franksingleton.clara.net/home.html
The Frank Singleton pages contain a wealth of weather information.