must be a little more cautious about setting any particular date.
The best time to go is when the NoPac High settles in around 35N - 145-150W. This will keep the trade
winds running down the US W Coast and heading toward Hawaii
as it runs South. This normally happens sometime in June and it is very evident when it happens because the cold fronts stop assaulting the PNW and lasts through-out the summer.
Just start watching the cold fronts in April and as they slow down and the high builds in, it's time to go. This can happen as early as May.
Most people head
down the West Coast
, then leave from there to avoid the cold fronts. The earlier you go, the farther south you need to leave from. You just don't want to leave after July (farther South).
My first ocean passage
was Long Beach Ca to Hawaii in January 1984. I got the living crap beat out of me. 7 major cold fronts. One had 60kts of wind
. Not a smart thing to do......where was the internet
then?? I'm glad that you are smarter than I was.
I hope that helps.