Tyre Pressures

[am1w]

Stupid question I am sure.
Must the car be on a level surface for an accurate  tyre pressure check or is it ok to check this when it's parked at an angle along a kerb?

[mad_pete]

Should be fine assuming it hasn't somehow changed the volume of the tyre ?

[sanj]

Level surface and cold(first thing)as they will be wrong if you've driven about for a bit as this increases tyre pressure.

[am1w]

Thanks.
Flat and cold it will be.
Knew about the cold and always checked on flat surface.
Confirmation appreciated.

[mad_pete]

The extra weight of the incline makes a difference ? So if I park one way on a hill take the pressures and then park the other I'm going to see a difference?
Thinking about it the spare is pumped up off the car (no weight) so I don't think the incline will matter much.

[am1w]

I'll pump and check tilted and non-tilted but definitely cold.