Yes! Today seems especially bad. It's 28.5 on the thermostat indoors, and only 20 outdoors. I have all the windows wide open and the door propped open, and yet it still isn't cooling off inside.
People who mock some of us for hating the heat waves and wanting air con despite it being 'only a couple of weeks a year' don't have a clue how long the heat lasts. I can use all the tricks to cool myself somewhat, the fans and the ice in front of them and the wet sheets and the cooling mats and whatnot, but it doesn't cool the room itself.
I'm going to have to close the windows and doors soon as I'm ground floor and need to go to bed, and the heat will radiate back in and put it above 30 again over the night.
Even the portable air con machine only lowers it a couple of degrees in that room (despite good window seal, hose insulation etc), and only while it's on. It quickly heats back up again, and I can't leave that on overnight either because it needs the window open. I've got the window films and the awnings outside, too. And the blinds down. And the windows closed in the heat of the day.
It might take weeks before it gets down to a decent temperature in here and I can finally sleep.
I think there must be a lot of humidity today or something too that is making it feel worse.