anyone with the secret as to where/how we get as accurate prediction on the afternoon seabreeze. SeaBreeze offers a general forecast, often skipping the important part of the sailing day.... 
Select to expand quoteJode5 said...
I think it comes down to local knowledge.
+1
Sometimes you can see from the chart whether the sea breeze will reinforce the natural wind gradient.
I have found Seabreeze to be pretty good on wind strengths in Sydney.
Black magic for this one.
Dry grass in the morning means no NE'er [Sea Breeze}
The wetter [dew] the grass is in the morning the harder it will blow.
If its still blowing hard after dark its a black NE'er and can blow for 24 hours or more!
This for the Mid North Coast of NSW. 
MetEye
put in your local area and learn
takes a bit to get used to for some
best thing ever in wind forecasting
www.bom.gov.au/australia/meteye/
If your heading offshore I would not risk depending on the Seabreeze weather guess. Bom is generally the best a far as how strong the breeze will be. I use the Seabreeze timing and the rest I get from BOM and the buoy offshore forecasts for my area. I'm not home at the moment so can not post the link to the buoy site.
Also consider using BOM Lite. it gives you text only weather that loads fast and is good for very marginal reception areas. I used it quite a bit down the West Coast.
www.bom.gov.au/marine/lite/
Select to expand quoteRamona said..
If your heading offshore I would not risk depending on the Seabreeze weather guess. Bom is generally the best a far as how strong the breeze will be. I use the Seabreeze timing and the rest I get from BOM and the buoy offshore forecasts for my area. I'm not home at the moment so can not post the link to the buoy site.
+1
My use of Seabreeze is purely inshore around Pittwater and environs.
Every one whos racing wants to know that!
Sometimes you can get a vague idea of what might happen by looking at these at the different measuring stations around where you are
www.weatherzone.com.au/station.jsp?lt=site&lc=66037&list=ob
ie. If the weathers stable the day might repeat the day before. But the important word is might!
Thanks to all..helpful with links offered.
Feel sure though, that there must be some app which uses last ten-year history, where with certain equally similar conditions, closeness of isobars, inland and sea temperatures, the possibility of predicting the onshore wind speed day by day, should be available ?? BrianGF 
So are you wanting to predict days/weeks ahead or just know what it is when it's in?
Seabreeze uses feeds off the BoM for it's graphs on this site and a few privately owned anemometers. But these would only read what's happening. Not predict ahead.
Select to expand quoteBrianGF said..
Thanks to all..helpful with links offered.
Feel sure though, that there must be some app which uses last ten-year history, where with certain equally similar conditions, closeness of isobars, inland and sea temperatures, the possibility of predicting the onshore wind speed day by day, should be available ?? BrianGF
Design the App and you might become a multi millionaire.
