Here's a really simple exercise.
Get out your world atlas.
Look at the latitudes you will be visiting and the same latitudes in the US on the east coast. That should tell you most of what you want/need to know.
Nobody can predict the weather but I think hot and humid is NOT likely, even in Bermuda.
Expect your crossing to be on the chilly side.
The one thing to take is what I call a "wrinkle suit" ... those nylon jobs that are pants and jacket, flannel-lined. They can go over other clothes, be worn alone, whatever. And they are pre-wrinkled for your packing pleasure.
Sounds like a great itinerary. I don't love the Azores, but the ports will be welcome land after your crossing.