Play around with wind guru. http://www.windguru.cz/int/index.php?sc=522780&sty=m_spot

It will show primary and secondary swells.

Obviously direction is important. What should we watch for in swell period ?

Warren S/V Scuba Doo
Lagoon 50 (winner of best crewed yacht under 55 feet at the St. Thomas crewed yacht boat show).

https://www.cyabrochure.com/ebn/2307/pdyrX/6642/4///