Ditto Manny,
Like most of us, I learned MANY years ago that leaving any hatches/ports open fwd of the cockpit (on any but the calmest days), while underway, is just asking to get your bunk, setee, etc wet. And when stuff gets soaked w/ salt water it never really drys out... you've got to take everything home and launder it to rinse the salt out... which can be a hassle w/ slipcovers etc.
So, I'd rather have a hot stuffy DRY fwd cabin, than a hot, less stuffy, WET fwd cabin.
And we haven't even mentioned the wet stuff that falls from the sky in the middle of the night whenever the hatches are left open !!