暑苦しい refers to "it's so hot that I'm suffering/in pain", due to it being the conjunction of "hot" and "painful"/"tough". Akebono is just "restating" her original claim of it being hot two-folds.
Yes indeed,it feels rather breezy.Not a bad idea.Looks like we've got no choice but to put on our swimsuits now, huh. (lolol)It feels so hot everyday~It's sure damn hot, isn't it!!Uhya