Georgia Straight
I don't pretend to know much about Puget Sound, but my comments are true around the South West Coast (American speak: Pacific North West) of Canada; and its pretty much true of weather down to Seattle. Seattle weather and Vancouver BC weather is pretty much the same thing.Summers in the Pacific North West and South West Coast of Canada are different than any other part of the country. And it is pretty much a "crap shoot" until the 15th of July. We can have amazing Aprils and Mays - or not - and June can be great - or not - but once you hit the 15th of July until the last week of August, the weather has been historically great in terms of sun and no rain, but there can also be a lack of wind (bring lots of fuel).In the last three summers, the first two Junes were very hot - unusual for around here - but last June was on and off again rain. Don't trust June's in the Pacific North West. And in fact don't trust the first two weeks of July either.With April, May and June, the weather can be great, but it also can deteriorate for weeks at a time to rain, rain, and more rain, with possibilities of showers to follow.The last week in August also deteriorates for about a week, then we move into a wonderful fall. All falls here have been terrific, since I moved here in 1973. However two falls ago, was the exception - rain - that proved the rule.For good sunny weather, but maybe iffy wind, the best time to schedule your time here, if here for a month is from 15 July to 15 August.