If your house isn't orientated for circulating cool air from sea breezes
Then Ive attached a simulation that shows air flow through a front open window doesnt necessarily reach your other rooms ie Family, Meals & living areas
In fact the air hardly makes it to the back rooms

A simple cost effective solution to get airflow to the back rooms is via louvre vents and ducting from directly above through ceiling spaces a Great DIY project that will save you on Cooling Costs
