Here is a link to XC Weather, this site provides reliable forecast information. For a detailed 5 day forecast for our area please click on the Isle of Wight, St Catherines, that area gives a true idea of the wind over the water.

www.xcweather.co.uk 

 (Please bear in mind that the wind is just one factor that I take into account when deciding whether the trip goes ahead, tide, recent weather and sea states are also very relevant.)