I know a lot of folks heading up to the Broughtons. Matter of fact, we rafted up to the authors of the Dreamspeak? cruising book series one year on their way up to the Broughtons. What's the deally-o with that area? We went part way up Johnstone Strait one year and found that it got cold and turned around and headed back down to Desolation Sound. We figured if we wanted to summer in cold water areas we could stay down in the San Juans.
Unfortunately that is the reality of cruising north of Desolation, and, to some extent, cruising the outer west coast as well. It's like entering a new climate altogether. Spectacular scenery when the weather lifts, but all to often you're stuck under a layer of cloud for at least half the day.
When we did Barkley Sound a couple of years ago, we took our friends with whom we cruise the Caribbean every year or two. I was subject to a pact that, any day we sat in fog/cloud/mist and the weather inside (Georgia Strait) was good, I owed them a "Baguette Day".. that meant I had to go get the morning baguettes on our next Caribbean trip. In 12 days cruising I "earned" 9 baguette days. I think 3 of them are still on the books for next time!
I grew up on the central coast, a small town called "Ocean Falls", near Bella Bella, and this weather pattern is typical there too (with still more rain). While I'd dearly love to get up there again, the first mate resists because she likes her summers... and for some reason that means sun.
But these areas are truly beautiful when the sun comes out, quiet and solitude are nearly guaranteed, and if you spend some time with charts or Google Earth, you can see the near limitless potential for small one boat nooks and crannies...
You do/will need good self sufficiency, though, because services become far and few between.
BTW erps, the cruising guide couple's boat is "Dreamspeaker", an S&S SHE 36.