I haven’t been up that far this year, although we are heading up this weekend. The water I have paddled would have required a wetsuit, and I am going to guess that it is even colder up there (air temp was -3C this morning).
I was up to Hass with a group yesterday, and the water has warmed up considerably over the last week. I’m not saying it’s warm by any means, but pretty reasonable. We had a few people swim, and none of them wear dry pants. They were a little chilled by the time they got to shore, but warmed up fast in the sun.