Harry Bloomfield laid this down on his screen :
The Natural Philosopher was thinking very hard :
Outside: 36°C
Inside: 28°C

Outside 34.3C
Inside 29.7C

SWMBO doesn't understand cooler with the windows and doors closed :-(

Problem now, is that the thermal mass has gradually picked up energy
over the recent hot days, so despite it being cooler outside, it is
still hot and sticky indoors..

Outside 21.0C
Inside 26.7C - even with windows open and blowing cooler air in.