Last year I seriously fished Buoy 10, and I caught limits every time I went out, except for days when I got blown off, from the first of August to the end of the first week of September. After that it dropped off fast, but Grays Harbor picked up and filled the slack nicely until duck season, so I was a happy camper
Last year it was pretty much all coho - nice ones, though, rarely kept one smaller than 12 pounds and they went up to 22 for me
This year they are saying it will be mostly kings, and those were more concentrated for me in the last two weeks of August, mostly after they had closed the fishery for them
So this year I would concentrate on those last two weeks in August - you can bet I will