"Wrong" is a pretty broad term .. due to the variability of weather (i.e. gusts, how far the seabreeze travels inland etc) it is best described with terms such as "ranges" and "probabilities". The exception is when the forecast is right.

Then it's called accurate and precise!

Interesting article here:
A history of weather discoverysecure.seabreeze.com.au/Members/Content/Articles/Miscellaneous/A-history-of-weather-discovery_1216853.aspx ..and here:
www.seabreeze.com.au/info/wind.aspThis week, there has been a trough down the west coast, which is keeping the seabreeze offshore. The forecast has been "correct" in that the seabreeze has indeed reached 20+ knots, but possibly "wrong" depending on where you measure it. Rottnest, correct, Perth incorrect.
I'd suggest that the seabreeze has to 'end' somewhere, as it is a circular pattern that returns to sea in the upper altitudes. Sometimes the breeze can extend inland 5Km's, 100km's, and other times it can hang offshore 1km and more.