how to defog car windows in rain

Windows fog because the cabin air is humid and cooler glass invites condensation—science, but annoying.

Hit the demist, set temperature to warm, turn the A/C on, and switch OFF recirculation so dry outside air comes in.

Aim airflow at the windscreen and side vents, crack a window slightly, and use the rear demister for the back.

If the fog is outside (warm wet air outside, cold glass), use your wipers and add gentle heat to the screen.

Keep a clean microfibre cloth handy and apply an anti-fog treatment; greasy glass fogs faster than a cuppa in July.

And no, wiping with your sleeve is not a strategy—it’s a smear campaign you’ll battle all winter.