. . . the tricky part is actually being able to SEE the waves in between the dorsal fins that you think you see as the Jaws theme song creeps through your mind. bump, bump, pah dump; bump, bump, pah dump, and just about that time something big bumps your foot beneath you and you just KNOW it's REALLY big.
As the sun goes down around dusk the wind cuts down which allows swell to roll in. When i was in Barbados I experienced this everyday like clockwork. Very noticeable swell increase.
Although here in NJ I myself haven't personally noticed a huge increase in swell. Maybe because of the many wind directions here?
this isnt really a very proper statement to make - but let me expand on this. Yes, during the days when synoptic flow is weak (light winds, usually associated with a high pressure), land and sea breezes are influenced by the temperature differences between the ocean and land.
So, many summer days, the winds are lighter in the mornings and at night as the air cools. But, this isn't going to effect the open ocean swells, just the conditions of the waves breaking. And, an offshore breeze compared to an onshore breeze as we know can make a big difference for a breaking wave height.