Been sailing these fluky NE'lies which should be a good wind direction for the S facing beaches near Adelaide, but NE'ly forecast usually means N or NNE at best and it is super hard to snag a wave - have to be close to the peak, get a gust (not too strong else get blown off the back, but strong enough to match wave speed, etc). Anyone got a wind - wave angle rule of thumb to decide whether to sail or surf?